TECHNICAL GUIDELINES, STANDARDS by uCvQOf

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									                           KWEZI V3 ENGINEERS


                      TECHNICAL design GUIDELINES,

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                       STANDARDS & SPECIFICATION



                                ELECTRICAL DEPARTMENT



                                              JUNE 2008
          TECHNICAL DESIGN GUIDELINES, STANDARDS & SPECIFICATION

                                             ELECTRICAL DEPARTMENT

                                                              INDEX

ITEM                                                  DESCRIPTION                                                               PAGE

1.      STATUTORY REGULATIONS AND ACTS ........................................................................ 1

2.      DESIGN GUIDELINES : ELECTRICITY DISTRIBUTION NETWORKS .............................. 2

2.1     ELECTRICAL DISTRIBUTION NETWORKS : GENERAL ................................................... 2

2.2     ELECTRICAL DISTRIBUTION NETWORKS : ESKOM ....................................................... 3

2.2.1   Distribution Technology Website ......................................................................................... 3

2.3     OVERHEAD POWER LINES............................................................................................... 3

2.4     STREET-LIGHTING ............................................................................................................ 4

2.5     LIGHTNING PROTECTION ................................................................................................ 5

2.6     EARTHING.......................................................................................................................... 5

2.7     CABLES AND CONDUCTORS ........................................................................................... 6

2.8     SWITCHGEAR, SWITCHES AND FUSES .......................................................................... 8

2.9     MINIATURE SUBSTATIONS .............................................................................................. 9

2.10    TRANSFORMERS .............................................................................................................. 9

2.11    ELECTRICITY DISPENSING AND VENDING EQUIPMENT ............................................. 10

2.12    CONSUMER DISTRIBUTION UNITS ................................................................................ 11

2.13    OPERATING REGULATIONS ........................................................................................... 11

2.14    QUALITY OF SERVICE AND SUPPLY ............................................................................. 11

2.15    METERING ....................................................................................................................... 12

2.16    COMPUTER BASED SOFTWARE DESIGN PROGRAMS ................................................ 12

3.      DESIGN GUIDELINES : SUBSTATIONS, SWITCHING STATIONS,
        TRANSMISSION LINES ................................................................................................... 13

3.1     ESKOM STANDARD ......................................................................................................... 13
ITEM                                                  DESCRIPTION                                                                PAGE

4.     DESIGN GUIDELINE : BUILDING ELECTRICAL INSTALLATIONS ............................... 14

4.1    BUILDING ELECTRICAL INSTALLATION ........................................................................ 14

4.2    INTERIOR LIGHTING ....................................................................................................... 14

4.3    HAZARDOUS EQUIPMENT AND AREAS ........................................................................ 14

4.4    FIRE DETECTION ............................................................................................................ 17

4.5    SECURITY SYSTEMS AND INSTALLATIONS ................................................................. 17

4.6    TELEVISION ..................................................................................................................... 18

5.     DESIGN AND MEASUREMENT GUIDELINES : NOISE .................................................. 18

6.     GUIDELINE : ELECTRICAL DRAUGHTING AND SYMBOLS ......................................... 18

6.1    GENERAL ......................................................................................................................... 18

7.     ESKOM ............................................................................................................................. 18

8.     STANDARD SPECIFICATIONS ....................................................................................... 18

9.     LIST OF KV3 ENGINEERS ELECTRICAL MASTER DOCUMENTATION ....................... 18

10.    DESIGN PARAMETERS................................................................................................... 19

10.1   ELECTRICAL DISTRIBUTION NETWORKS ..................................................................... 19

10.2   LIMITS OF VOLTAGE VARIATION ................................................................................... 22
     TECHNICAL DESIGN GUIDELINES, STANDARDS & SPECIFICATION

                        ELECTRICAL DEPARTMENT


1.     STATUTORY REGULATIONS AND ACTS

          Electricity Act (Act No. 41 of 1987, as amended).

          Occupational Health and Safety Act (Act No. 85 of 1993, as amended).

          Engineering Profession Act (Act No. 114 of 1990, as amended).

          Post Office Act (Act No. 44 of 1958, as amended).
2.           DESIGN GUIDELINES : ELECTRICITY DISTRIBUTION NETWORKS

2.1          ELECTRICAL DISTRIBUTION NETWORKS : GENERAL

NRS034-0     Electrical distribution : Guidelines for the
             provision of electrical distribution networks      1.02   DEC 2001     NRS034-0.PDF
             in residential areas : Part 0: Definitions
NRS034-1     Electrical distribution : Guidelines for the
             provision of electrical distribution networks
                                                                3.03   FEB 2001     NRS034-1.PDF
             in residential areas : Part 1: Planning and
             design of distribution systems
NRS034-2-3   Electrical distribution : Guidelines for the
             provision of electrical distribution networks
             in residential areas : Part 2-3: Preferred         1.0    APRIL 1997   NRS034-2-3.PDF
             methods and material for the installation of
             overhead power lines
NRS034-3     Electrical distribution : Guidelines for the
             provision of electrical distribution networks
             in residential areas : Part 3: Overhead
                                                                2.0    OCT 1999     NRS034-3.PDF
             distribution in very low, low and moderate
             consumption areas, including rural areas
             and informal settlements
NRS069       Code of practice for the recovery of capital
                                                                 1     2004
             costs for distribution network assets

                  Additional guidelines see:

                         Item 2.3     :   Overhead power lines
                         Item 2.4     :   Street-lighting
                         Item 2.6     :   Earthing
                         Item 2.7     :   Cables and conductors
                         Item 2.8     :   Metal clad switchgear
                         Item 2.9     :   Miniature substations
                         Item 2.10    :   Distribution transformers
                         Item 2.11    :   Electricity dispensing and vending equipment
                         Item 2.12    :   Consumer distribution units
                         Item 2.13    :   Operating regulations
                         Item 2.14    :   Quality of service
                         Item 2.15    :   Computer based software design programs
2.2     ELECTRICAL DISTRIBUTION NETWORKS : ESKOM

2.2.1   Distribution Technology Website

        Access via Intranet: [ Disciplines Libraries  Electrical Engineering  Detail
        Guideline and Standards  Eskom]

        Password and Username - KWEZI 03.

        Also access via Website: http:/bits.eskom.co.za

2.3     OVERHEAD POWER LINES

           SANS 10280 : 2001        :   Code of Practice for overhead power lines for
                                         condition prevailing in South Africa.

           NRS 022 : 1996           :   Stays and associated equipment.

           NRS 033 : 1996           :   Guidelines for the application, design, planning and
                                         construction of medium voltage wooden pole
                                         overhead power lines above 1 kV and up to and
                                         including 22 kV.

           NRS 034-1 : 2001         :   Guidelines for the provisions of electricity distribution
                                         networks is residential areas:

                                     :   Part 1 : Planning and design of distribution systems
                                         and voltage drop tables.

           NRS 034-2-3 :1997        :   Guidelines for the provision of electrical distribution
                                         networks in residential areas:

                                     :   Part 2-3 : Preferred methods and materials for the
                                         installation of overhead power lines.

           NRS 034-3 : 1999         :   Guidelines for the provision of electrical distribution
                                         networks in residential areas:

                                     :   Part 3 : Overhead distribution in very low, low and
                                         moderate consumption areas, including rural areas
                                         and informal settlements.

           NRS 038-1 : 2007         :   Concrete poles:

                                     :   Part 1 : Concrete poles for LV and MV O/H
                                         distribution and systems.

           NRS 038-2 : 2007         :   Concrete poles:

                                     :   Part 2 : Concrete poles for lighting applications.

           NRS 039-1 : 1999         :   Surge arrestors use in Distribution Systems:

                                     :   Part 1 : Guide for the application of gapless metal-
                                         oxide surge arrestors.
         NRS 039 -2: 1999      :   Surge arrestors use in Distribution Systems:

                                :   Part 2 : Distribution class gapless metal-oxide surge
                                    arrestors.

         NRS 043 : 2005        :   Joint use of structures for power and telecommuni-
                                    cation lines.

         NRS 041-1 : 2008      :   Overhead power lines for conditions prevailing in
                                    South Africa.

                                :   Part 1 : Safety

         NRS 060 : 2005        :   Code of Practice for clearances for electrical systems
                                    with rated voltages up to and including 145 kV, for
                                    the safety of persons.

         NRS 061-1 : 2002      :   Specification for overhead ground wire with optical
                                    fibre:

                                :   Part 1 : Product specification.

         NRS 061-2 : 2004      :   Specification for overhead ground wire with optical
                                    fibre:

                                :   Part 2 : Installation guides.

         NRS 066 : 2002        :   Medium voltage insulators.

         NRS 072 : 2003        :   Overhead line fault path indicators.

         NRS 075 : 2004        :   Mechanical torque shear connectors.

2.4   STREET-LIGHTING

         SANS 10098-1 : 2007   :   Code of Practice        for     the   lighting   of   public
                                    thoroughfares.

         SANS 10098-2 : 2005   :   Code of Practice for the lighting of certain specific
                                    areas of streets and highways.

         SANS 10225 : 1991     :   Code of Practice for the design and construction of
                                    poles and masts for lighting structures.

         AMEU/ILESA/SANCI      :   Guide for the installation and maintenance of street-
                                    lighting.

         ARP 035 : 2007        :   Guidelines for the installation and maintenance of
                                    street lighting.
2.5   LIGHTNING PROTECTION

         SANS 10313 : 2003      :   The protection of structures against lighting.

         SANS 61024-1 : 1993    :   Protection of structures against lightning:
          (withdrawn)
                                 :   Part 1 : General Principals Section 1.

                                     - Guide A : Selection of protection levels lighting
                                       protection system.

         SANS 61024-1-2 : 1998 :    Protection of dwelling houses against lighting:
          (withdrawn)
                                :    Part 1-2 : General Principals.

                                     - Guide B : Design, installation, maintenance and
                                       inspection of lighting protection systems.

2.6   EARTHING

         NRS 076 : 2005         :   Earthing of distribution substations with nominal
                                     voltages up to and including 132 kV.

         SANS 10292 : 2001      :   Earthing of low voltage distribution systems.

         NRS 059 : 2002         :   Recommendations to minimise problems associated
                                     with the theft of transformer neutral and neutral
                                     earthing conductors.

         SANS 10198-3 : 2004    :   The selection, handling and installation of electric
                                     power cable up to 33 kV:

                                 :   Earthing systems : General provisions.

         SANS 10198-5 : 2004    :   The selection, handling and installation of power
                                     cables up to 33 kV:

                                 :   Determining of thermal and electrical resistivity of
                                     soil.

         SANS 10198-12 : 1988   :   The selection, handling and installation of power
                                     cables up to 33 kV:

                                 :   Installation of earthing systems.

         SANS 10199 : 2004      :   The design and installation of earth electrodes.

         SANS 10200 : 1985      :   Neutral earthing in medium voltage industrial power
                                     system.
2.7   CABLES AND CONDUCTORS

         NRS 011 : 2001     :   Pilot cables.

         NRS 012 : 2002     :   Cable terminations and line conductors with air-
                                 insulated enclosures (insulation co-ordination) for
                                 rated AC voltages of 7,2 kV and up to and including
                                 36 kV.

         NRS 013 : 2007     :   Medium voltage cables.

         NRS 018-1 : 2002   :   Fittings and connectors for LV overhead power lines
                                 using ABC:

                             :   Part 1 : Strain and suspension fittings for self-
                                 supporting conductors.

         NRS 018-2 : 1995   :   Fittings and connectors for LV overhead power lines
                                 using ABC:

                             :   Part 2 : Strain and suspension fittings for insulated
                                 neutral supporting conductors

         NRS 018-3 : 1996   :   Fittings and connectors for LV overhead power lines
                                 using ABC:

                             :   Part 3 : Strain and suspension fittings for bare
                                 neutral supporting conductors.

         NRS 018-4 : 1996   :   Fittings and connectors for LV overhead power lines
                                 using ABC:

                             :   Part 4 : Strain and suspension fittings for aerial
                                 service cables.

         NRS 018-5 : 1996   :   Fittings and connectors for LV overhead power lines
                                 using ABC:

                             :   Part 5 : Current carrying connectors and joints.

         NRS 020 : 2002     :   Cable ties for the use with low voltage aerial bundled
                                 conductors.

         NRS 028 : 1993     :   Cable lugs and ferrules for copper and aluminum
                                 conductors.

         NRS 053 : 2000     :   Accessories for MV power cables.

         NRS 074-1 ; 2005   :   Low voltage cable systems for underground electrical
                                 distribution:

                             :   Part 1 : Cables.

         NRS 077 : 2005     :   XLPE Cables and accessories for systems with
                                 nominal voltages of 44 kV, 66 kV, 88 kV and 132 kV.

         NRS 088-1 : 2007   :   Duct and direct buried underground fibre-optic cable:
                           :   Part 1 : Product specification.

   PIESA 1004-1           :   Low voltage (600/1 000 V)         cable   systems   for
                               overhead distribution:

                           :   Part 1 : Cables.

   SANS 10198-1 : 2004    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 1 : Definitions and statutory requirements.

   SANS 10198-2 : 2004    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 2 : Selection of cable type and methods of
                               installation

   SANS 10198-3 : 2004    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 3 : Earthing systems : General provisions.

   SANS 10198-4 : 2005    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 4 : Current ratings.

   SANS 10198-5 : 2004    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 5 : Determining of thermal and electrical
                               resistivity of soil.

   SANS 10198-6 : 2007    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 6 : Transport and storage.

   SANS 10198-7 : 2004    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 7 : Safety precautions.

   SANS 10198-8 : 2007    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 8 : Cable laying and installation

   SANS 10198-9 : 1988    :   The selection, handling and installation of power
                               cables up to 33 kV:

                           :   Part 9 : Jointing and termination of extruded solid
                               dielectric insulated cables up to 33 kV.

   SANS 10198-10 : 1988   :   The selection, handling and installation of power
                               cables up to 33 kV:
                                 :   Part 10 : Jointing and termination of paper insulated
                                     cables.

         SANS 10198-11 : 1988   :   The selection, handling and installation of power
                                     cables up to 33 kV:

                                 :   Part 11 : Jointing and termination of screened
                                     polymeric insulated cables

         SANS 10198-12 : 1988   :   The selection, handling and installation of power
                                     cables up to 33 kV:

                                 :   Part 12 : Installation of an earthing system.

         SANS 10198-13 : 1988   :   The selection, handling and installation of power
                                     cables up to 33 kV:

                                 :   Part 13 : Testing commissioning and fault location.

         SANS 10198-14 : 1996   :   The selection, handling and installation of power
                                     cables up to 33 kV:

                                 :   Part 14 : Installation of aerial bundle conductor
                                     cables.

2.8   SWITCHGEAR, SWITCHES AND FUSES

         NRS 003-2 : 1996       :   Metal clad switchgear for rated AC voltages above
                                     11 kV and up to and including 22 kV:

                                 :   Part 1 : Standardised panels.

         NRS 031 : 1998         :   Alternating current disconnectors       and     earthing
                                     switches above 11 kV.

         NRS 035-1: 2002        :   Outdoor distribution cut-outs:

                                 :   Part 1 : Drop-out fuse link assemblies or solid link
                                     assemblies - Pole-mounted types : For nominal AC
                                     voltages up to and including 33 kV.

         NRS 035-2: 2002        :   Outdoor distribution cut-outs:

                                 :   Part 2 : Expulsion fuse links for nominal AC voltages
                                     up to and including 33 kV.

         NRS 036-2 : 2002       :   Auto-reclosers and sectionaliser – pole-mounted
                                     types:

                                 :   Part 1 : Auto-recloser with local and remote control
                                     capabilities up to 33 kV.

         NRS 036-2 : 2004       :   Auto-reclosers and sectionaliser – pole-mounted
                                     types:

                                 :   Part 2 : Auto-reclosers with programmable protection
                                     features and local control up to 33 kV .
          NRS 036-3 : 2004    :   Auto-reclosers and sectionaliser – pole-mounted
                                   types:

                               :   Part 3 : Sectionalisers.

          NRS 046 : 2002      :   Pole-mounted load break switch disconnectors.

          SANS 1874 : 2005    :   Metal enclosed ring main units for AC voltage above
                                   1 kV up to and including 24 kV.

2.9    MINIATURE SUBSTATIONS

          SANS 1029 : 2007    :   Miniature substations.

2.10   TRANSFORMERS

          SANS 555 : 2007     :   Unused and reclaimed insulating oils for transformers
                                   and switchgear.

          SANS 60076          :   Power transformers (Part 2 to 10)

                               :   Part 2 : Temperature rise (1993).

                               :   Part 3 : Insulation levels, dielectric tests and external
                                   clearances in air (2000)

                               :   Part 4 : Guide to lightning impulse and switching
                                   impulse testing (2004).

                               :   Part 5 : Short circuit withstand ability (2006).

                               :   Part 7 : Loading guide for oil immersed transformers
                                   (2006).

                               :   Part 8 : Application guide (1997).

                               :   Part 10 : Sound levels (2001).

          SANS 780 : 2004     :   Distribution transformers.

          NRS 029 : 2002      :   Current transformers for rated AC voltage from
                                   3,6 kV to 420 kV.

          NRS 030 : 2001      :   Inductive voltage transformers for rated AC voltage
                                   from 3,6 kV to 145 kV.

          NRS 054 : 2002      :   Power transformers.
          NRS 079-1 : 2004     :   Mineral insulating oils (uninhibited)

                                :   Part 1 : Purchase, management, maintenance and
                                    testing.

2.11   ELECTRICITY DISPENSING AND VENDING EQUIPMENT

          SANS 1524-1 : 2005   :   Electricity prepayment systems:

                                :   Part 1 : Prepayment meters.

          NRS 009 : 1996       :   Electricity sales systems.

          NRS 009-2-2 : 1995   :   Electricity sales systems:

                                :   Part 2 : Functional and performance requirements.

                                :   Section 2 : Credit disposing units.

          NRS 009-2-4 : 1997   :   Electricity sales systems:

                                :   Part 2 : Functional and performance requirements

                                :   Section 4 : National electricity meter cables and
                                    associated numbering standards.

          NRS 009-2-5 : 1997   :   Electricity sales systems:

                                :   Part 2 : Functional and performance requirements.

                                :   Section 5 : Error handling.

          NRS 009-3 : 2001     :   Electricity sales systems:

                                :   Part 3 : Database format

          NRS 009-4 : 2005     :   Electricity sales systems:

                                :   Part 4 : National prepayment electricity meter cards.

          NRS 009-5 : 1998     :   Electricity sales systems:

                                :   Part 5 : Testing of subsystems.

          NRS 009-6-1 : 1997   :   Electricity sales systems:

                                :   Part 6 : Interface standards.

                                :   Section 1 : Interface credit distributions unit (CDU) to
                                    standard token translator (STT).

          NRS 009-6-3 ; 1997   :   Electricity sales systems:

                                :   Part 6 : Interface standards.

                                :   Section 3 : System master station/credit dispensing
                                    unit interface.
          NRS 009-6-4          :   Electricity sales systems:

                                :   Part 6 : Interface standards.

                                :   Section 4 : Data transfer by physical media.

          NRS 009-6-6 to 6-9   :   Electricity sales systems:

                                :   Part 6 : Interface standards.

                                :   Sections 6 – 9 : STS interface.

2.12   CONSUMER DISTRIBUTION UNITS

          NRS 032 : 2001       :   Service distribution boxes – pole-mounted types for
                                    overhead single phase AC service connections at
                                    240 V.

          NRS 056-1 : 2005     :   Service distribution boxes - Meter kiosks and
                                    distribution kiosks:

                                :   Part 1 : Low voltage non-steel meter kiosks for use
                                    in underground networks.

          NRS 056-2 : 2004     :   Service distribution boxes:

                                :   Part 2 : specifications for ground mounted low
                                    voltage distribution kiosks.

2.13   OPERATING REGULATIONS

          NRS 040-1 : 1999     :   HV operating regulations:

                                :   Part 1 : Definition of terms.

          NRS 040-2 : 2000     :   HV operating regulations:

                                :   Part 2 : Voltage colour coding.

          NRS 040-3 : 2002     :   HV operating regulations:

                                :   Part 3 : Model regulations.

2.14   QUALITY OF SERVICE AND SUPPLY

          NRS 047-1 : 2006     :   Quality of service:

                                :   Part 1 : Minimum standard.

          NRS 047-2 : 2001     :   Quality of service:

                                :   Part 2: Reporting guidelines.

          NRS 048-2 : 2004     :   Quality of supply:

                                :   Part 2 : Voltage characteristics, compatibility levels,
                                    limits and assessment methods.
          NRS 048-4 : 1999   :   Quality of supply:

                              :   Part 4 : Application guidelines for utilities.

2.15   METERING

          NRS 057-4 : 2001   :   Electricity metering:

                              :   Part 1 : Code of Practice.

2.16   COMPUTER BASED SOFTWARE DESIGN PROGRAMS

          RETICMASTER

           Description        :   Radial network analysis for all voltages

           Operating system   :   WINDOWS

           Availability       :   Bellville (Cape Town)
                              :   Bloemfontein
                              :   Durban
                              :   East London
                              :   George
                              :   Pretoria

           Licence            :   Per workstation (U$B registration key)

           Maintenance and    :   Per office
           upgrade contact

          ERACS

           Description        :   Advanced network analysis with protection co-
                                  ordination.

           Operating system   :   WINDOWS

           Availability       :   Bellville (Cape Town)

           Licence            :   Per package

           Maintenance and
           upgrade contact    :   HD Pieters :     (Bellville)

          RSAT 4.1

           Description        :   O/H conductor power line sag and tension.

           Operating system   :   WINDOWS

           Availability       :   ESKOM DT Website

           Licence            :   KV3

           Maintenance and
           upgrade contact    :   C Brandsen : (Bellville)

          DIALUX
          Description            :   Indoor/Outdoor/Road illumination design programme.

          Operating system       :   WINDOWS

          Availability           :   Free download
                                     www.dial.de

          Licence                :   Open

          Requirements           :   Photometric Data files

          Version                :   4.4 (2008)

          Maintenance and
          upgrade contact        :   Free

          Configuration          :   Logo can be configured with KV3 logo

         COSTING ESTIMATION : REV 4.0

          Description            :   Project costing and job phasing           for   Eskom
                                     reticulation and substation technology.

          Operating system       :   WINDOWS

          Availability           :   Intranet (DT Website)

          Licence                :   Countrywide

          Maintenance and
          upgrade contact        :   C Brandsen : (Bellville)

         DT - PET 2001 V3 - B

          Description            :   Domestic load forecaster

          Operating system       :   WINDOWS

          Availability           :   Intranet (DT Website)

          Maintenance and
          upgrade contact        :   C Brandsen : (Bellville)

         ELECTECH

          Description            :   Domestic load forecaster

          Operating system       :   WINDOWS

          Availability           :   Intranet (DT Website)

          Maintenance and
          upgrade contact        :   C Brandsen : (Bellville)

3.    DESIGN GUIDELINES : SUBSTATIONS, SWITCHING STATIONS, TRANSMISSION
      LINES

3.1   ESKOM STANDARD
      Documents available on Intranet.

      [ Discipline libraries  Electrical Engineering  Design Guidelines and Standard
       Eskom Standards]

4.    DESIGN GUIDELINE : BUILDING ELECTRICAL INSTALLATIONS

4.1   BUILDING ELECTRICAL INSTALLATION

         SANS 10142-1:2003       :   Low voltage installations

      Documents available on Intranet.

      [ Operational information  SANS  ]

4.2   INTERIOR LIGHTING

         SANS 10114-1 : 2005     :   Interior lighting:

                                  :   Part 1 : Artificial lighting of interiors

         SANS 10114-2 : 2002     :   Interior lighting:

                                  :   Part 2 : Emergency lighting

4.3   HAZARDOUS EQUIPMENT AND AREAS

         SANS 10086-1 : 2003     :   The installation, inspection and maintenance of
                                      equipment used in explosive atmospheres:

                                  :   Part 1 : Installations, including surface installations
                                      on mines.

         SANS 10086-2 : 2006     :   The installation, inspection and maintenance of
                                      equipment used in explosive atmosphere:

                                  :   Part 2 : Electrical apparatus installed underground in
                                      mines.

         SANS 10086-3 : 2001     :   The installation, inspection and maintenance of
                                      equipment used in explosive atmosphere:

                                  :   Part 3 : Repair and overhaul of apparatus used in
                                      explosive atmospheres.
   SANS 10087-1 : 2004   :   The handling, storage, distribution and maintenance
                              of liquefied petroleum gas in domestic, commercial
                              and industrial installations:

                          :   Part 1 : Liquefied petroleum gas installations
                              involving gas storage containers of individual water
                              capacity not exceeding 500  and a combined water
                              capacity not exceeding 3 000  per installation.

   SANS 10087-2 : 1977   :   The handling, storage and distribution of liquefied
                              petroleum gas in domestic, commercial and industrial
                              installations:

                          :   Part 2 : Installations in mobile units and small non-
                              permanent buildings.

   SANS 10087-3 : 2004   :   The handling, storage and distribution of liquefied
                              petroleum gas in domestic, commercial and industrial
                              installations:

                          :   Part 3 : Liquefied petroleum gas installations
                              involving storage vessels of individual water capacity
                              exceeding 500 .

   SANS 10087-4 : 1979   :   The handling, storage and distribution of liquefied
                              petroleum gas in domestic, commercial and industrial
                              installations:

                          :   Part 4 : Transportation of LPG in bulk by road.

   SANS 10087-6 : 2006   :   The handling, storage and distribution of liquefied
                              petroleum gas in domestic, commercial and industrial
                              installations:

                          :   Part 6 : The application of liquefied petroleum and
                              compressed natural gases as engine fuels for
                              internal combustion engines.

   SANS 10087-7 : 2007   :   The handling, storage and distribution of liquefied
                              petroleum gas in domestic, commercial and industrial
                              installations:

                          :   Part 7 : Storage and filing sites for refillable liquefied
                              petroleum gas (LPG) containers of capacity not
                              exceeding 9 kg.

   SANS 10087-8 : 1976   :   The handling, storage and distribution of liquefied
                              petroleum gas in domestic, commercial and industrial
                              installations:

                          :   Part 8 : The fuelling of forklift trucks and other LP gas
                              operated vehicles.
   SANS 10087-10 : 2006   :   The handling, storage and distribution of liquefied
                               petroleum gas in domestic, commercial and industrial
                               installations:

                           :   Part 10 : Mobile filling stations for refillable liquefied
                               petroleum gas (LPG) containers of capacity not
                               exceeding 9 kg.

   SANS 10089-1 : 2007    :   Petroleum industry:

                           :   Part 1 : Storage and distribution of petroleum
                               products in above-ground bulk installations.

   SANS 10089-2 : 2007    :   Petroleum industry:

                           :   Part 2 : Electrical installations in the distribution and
                               marketing sector.

   SANS 10089-3 : 1999    :   Petroleum industry:

                           :   Part 3 : The installation of underground storage
                               tanks, pumps/dispensers and pipework at service
                               stations and consumer installations.

   SANS 10108 : 2005      :   The classification of hazardous locations and the
                               selection of apparatus for use in such locations.

   SANS 10131 : 2004      :   Above ground storage tanks for petroleum products.

   SANS 10140-1 : 1978    :   Identification colour marking:

                           :   Part 1 : General

   SANS 10140-1 : 1978    :   Identification colour marking:

                           :   Part 2 : Identification of hazards and equipment in
                               work situations

   SANS 10140-3 : 2003    :   Identification colour markings:

                           :   Part 3 : Contents of pipelines.

   SANS 10140-4 : 2003    :   Identification colour marking:

                           :   Part 4 : Contents of taps and valves in laboratories.

   SANS 10140-5 : 1991    :   Identification colour marking:

                           :   Part 5 : Coding of containers for carrying lubricants
                               and associated fluids.
4.4   FIRE DETECTION

         SANS 10139 : 2007       :   Fire detection and alarms systems for buildings -
                                      System design, installation and servicing.

         SANS 322: 2005          :   Fire detection and alarm systems for hospitals.

4.5   SECURITY SYSTEMS AND INSTALLATIONS

         SANS 10222-1 : 2007     :   Security installations:

                                  :   Part 1 : General.

         SANS 10222-2 : 2007     :   Security installations:

                                  :   Part 2 : Access control systems.

         SANS 10222-3 : 2006     :   Electrical security installations:

                                  :   Part 3 : Electric security fences [non-lethal].

         SANS 10222-5-1-1 : 2007 :   Electrical security installations:

                                  :   Part 5-1-1 : CCTV installations - CCTV surveillance
                                      systems for use in security applications - Operational
                                      requirements.

         SANS 10222-5-1-2 : 2007 :   Electrical security installations:

                                  :   Part 5-1-2 : CCTV installations - CCTV surveillance
                                      systems for use in security applications - System
                                      design requirements.

         SANS 10222-5-1-3 : 2007 :   Electrical security installations:

                                  :   Part 5-1-3 : CCTV installations - CCTV surveillance
                                      systems for use in security applications - Installation,
                                      planning and implementation requirements.

         SANS 10222-5-1-4 : 2007 :   Electrical security installations:

                                  :   Part 5-1-4 : CCTV installations               -   Testing,
                                      commissioning and hand-over.

         SANS 10222-5-1-5 : 2003 :   Electrical security installations:

                                  :   Part 5-1-5 : CCTV installations - Maintenance
                                      requirements.

         SANS 10222-5-2 : 2007 :     Electrical security installations:

                                  :   Part 5-2 :       CCTV     installations   -   Applications
                                      guidelines.
4.6   TELEVISION

         SANS 10061-1 : 2004       :   The installation of communal and single antenna
                                        systems for the reception of television and sound
                                        broadcast transmission:

                                    :   Part 1 : VHF and UHF television and VHF sound
                                        antenna systems.

         SANS 10061-2 : 1994       :   The installation of communal and single antenna
                                        systems for the reception of television and sound
                                        broadcast transmission:

                                    :   Part 2 : Satellite antenna systems.

5.    DESIGN AND MEASUREMENT GUIDELINES : NOISE

         SANS 10083 : 2004         :   The measurement and assessment of occupational
                                        noise for hearing conservation purposes.

         SANS 10183 : 2004         :   The measurement and rating of environmental noise
                                        with respect to land-use, health, annoyance and
                                        speech communication.

6.    GUIDELINE : ELECTRICAL DRAUGHTING AND SYMBOLS

6.1   GENERAL

         Kwezi V3 Engineers

          [Symbol lists to be determined with inputs from all offices. Present symbols used
          not uniform].

         NRS 002 : 2000            :   Graphical symbols for electrical diagrams.

         SANS 10111 : 1993         :   Engineering drawing:

                                    :   Part 1 : General principals.

7.    ESKOM

         DT Website (see 2.2.1).

8.    STANDARD SPECIFICATIONS

      Access via Intranet: [ Discipline          libraries    Electrical    Engineering   and
      Specifications documentation]

9.    LIST OF KV3 ENGINEERS ELECTRICAL MASTER DOCUMENTATION

      [Master documentation for compilation of tender documents is available on the
      Intranet].

      Access via Intranet: TQM Procedure CPE 005B.
10.    DESIGN PARAMETERS

10.1   ELECTRICAL DISTRIBUTION NETWORKS

       a)   General residential networks classification of domestic consumer

                As per NRS 034 Table 2.

                Please check www.nrs.eskom.co.za for latest version/revision ant
                 table 36.
                                 Table 2 - Classification of domestic consumers - Typical design load parameters for domestic consumers1

                1.                     2.                  3.               4.          5.             6.           7.              8.        9.       10.           11.          12.          13.             14.    15.
                                                                                                                          cdef                                                                          cdef
                             Current type                                                     Load parameters - 7 years                                                    Load parameters - 15 years

                                                                                                                ADMD              µ         ό                                                  ADMD             µ      ό
                                 AMPSa and         Income rangeb
    Consumer class                                                         a            b             c                                                  a             b            c
                                 LSMa class        (gross R/month)
                                                                                                                 kVA              A         A                                                   kVA             A      A

Rural settlement               LSM 1                   0 to 600          0,30          2,98           20         0,42            1,83      2,78         0,35         2,88           20          0,50           2,17   3,03
                               (low end)

Rural Village                  LSM 1 and 2           400 to 900          0,43          2,52           20         0,67            2,91      3,55         0,48         2,13           20          0,84           3,65   4,07

Informal settlement            LSM 3 and 4          800 to 1 500         0,77          9,88           60         1,00            4,35      4,56         0,91         8,80           60          1,30           5,56   5,36

Township area                  LSM 5 and 6         1 500 to 3 000        1,05          7,81           60         1,64            7,13      6,18         1,22         5,86           60          2,37       10.30      7,96

Urban residential I            LSM 7               3 000 to 5 000        1,23          5,56           60         2,50            10,87     8,28         1,25         3,55           60          3,59       15,61      10,93

Urban residential II           LSM 7 and 8         5 500 to 8 500        1,45          6,97           80         3,54            15,39    10,81         1,42         4,10           80          4.72       20,52      13,68

Urban township complex         LSM 8               8 500 to 12 000       1,45          5,75           80         3,70            16,09    11,20         1,42         4,13           80          4,70       20,43      13,63
                         f
Urban multi-storey/estate      LSM 8 (high        12 000 to 24 000       1,43          4,41           80         4,50            19,57    13,15         1,37         3,39           80          5,30       23,04      15,09
                               end)
a    Living standards measure (LSM) as quoted in the All Media and Product Survey (AMPS) conducted annually the South African Advertising Research Foundation.
b    Average household income ranges shown for comparative purposes are in 2005 Rands. Any income data collected at a later date should be deflated by the CPI to allow a direct comparison.
c    If the target community matches the description, but the chosen value of (c) is different, new (a) and (b) values can be calculated for the chosen value of c, using the formula given in B.4.3.
d    Parameters have been normalised to the climate in the interior of South Africa where the winters are generally cold and with low rainfall. In regions where the winter is cold and wet (e.g. cape Peninsula), the ADMD
     is about 12 % higher than that given. In climates similar to that of the Durban coastal region, the ADMD is about 12 % lower than that given.
e    Except as indicated in (f) below, the parameters have been from carefully monitored case studies around the country, and reflect best knowledge at the time of publication of actual consumer demand over time. The
     actual load parameters used depend upon the strategy of the planner with regard to phasing of capital expenditure.
f    Parameters for this consumer class have been extrapolated from existing data, since no sample load data have yet been collected from such consumers. Loads significantly higher than the ADMD shown in LSM 8
     (high end) can be expected in the case of specific high-consumption developments. In such cases, estimated load data should be obtained from the relevant local authority or licensee.




1
 Table 2 is administered by the NRS Project Management Agency (PMA) on behalf of the Electricity Supply Industry. The table is updated from time to time, based on the analysis of the latest available load research
data without this part of the specification being revised. The current table can be viewed on the NRS website: www.nrs.eskom.co.za or obtained from the NRS Projects Manager.

NOTE: Contact details for the NRS Projects Manager are:

Telephone +27 11 651 6846; fax +27 11 651 6827: Postal Address: Industry Association resource Centre, Technology Standardisation, Eskom Convention Centre, PO Box 1091, Johannesburg 2000
                                  NRS 034 : Classification of domestic consumer

                                 Table 3b - Description of consumer load classes
         1.                          2.                             3.                             4.                      5.

  Consumer load
                          Derivation of income         Description of dwellings           Type of roads           Water reticulation
      class

Rural settlement       Mainly from pensions and       Mainly based on traditional     Normally tracks with      Normally none
                       subsistence farming. Some      construction methods            difficult access
                       breadwinners work far away
                       in cities

Rural village          From pensions and              Mixture of modem and            Mainly gravel with main   Some communal
                       subsistence farming. Some      traditional construction        roads tarred              stand-pipes
                       breadwinners are employed      methods
                       in nearby industrialised
                       areas and commute daily

Informal settlement    From work in a nearby          A range from shacks to          A range, from tracks in   None in informal areas.
                       town/city - largely from the   newer “government subsidy”      informal areas to         Planned areas
                       informal sector                houses made from blocks         gravel in planned areas   generally have water
                                                      Self-build schemes fall into                              piped to a tap in the
                                                      this category                                             yard of each dwelling

                                                      Built area of dwellings
                                                      generally less than 40 m2

Township area          From work in cities/towns      A range from low-income         Mostly tarred             Piped to most houses -
                       pensions and some informal     flats to old township houses                              half of which eventually
                       employment                     and newer government                                      have working electrical
                                                      scheme houses (mid-range),                                hot-water cylinders
                                                      to small semi-detached
                                                      houses
                                                      Built area of dwellings
                                                      generally 50 m2 - 80 m2

Urban residential I    From blue-collar jobs in       Houses ranging in size from     All tarred                Piped to all houses
                       cities                         80 m2 - 170 m2. Most
                                                      houses have some visible
                                                      repair/maintenance in
                                                      progress

Urban residential II   From formal employment in      The built-area of main          All tarred                Piped to all houses, all
                       cities, mostly white-collar    dwellings is typically                                    of which have electrical
                       jobs                           190 m2. None of the                                       hot-water cylinders
                                                      houses are multi-storey

Urban townhouse        Mainly from professional       Normally very-high density,     All tarred                Piped to all houses. A
complex                jobs in cities, level of       in complexes that                                         high percentage of
                       employment is high             incorporate security or other                             such houses have
                                                      shared services. Dwellings                                multiple electrical hot-
                                                      are single or multi-storey.                               water cylinders
                                                      Floor area in the range
                                                      890 m2 - 150 m2 per unit


Urban multi-           Mainly from professional       Large, constructed of brick
story/estate           jobs in cities, level of       or concrete, floor area
                       employment is very high        250 m2 - 500 m2
                                                      In regions with some
                                                      desirable natural feature
                                                      (e.g. a view)
The cable data required by die designer are the phase resistance R p and the neutral resistance R n.
Specifically, the resistances at the operating temperature have to be taken into account when the voltage drop
is being calculated. For underground conductors, an operating temperature of 30 °C is assumed. For
overhead conductors, an operating temperature of 40 °C is assumed in voltage drop calculations, although
higher temperatures are used for calculating the minimum ground clearance of the conductors for safety
considerations.
              b)     Light industrial

                          As per Client requirements / guidelines and/or type of business.

                          General:

                                 ADMD - 100 to 200 kVA/ha

                                 Erf < 1 500 m2 :      20 kVA ADMD

                                 Erf > 1 500 m2 :      40 kVA ADMD

              c)     Limits of voltage variation

                    Acceptable voltage regulation as per Regulation R103, amended of Electricity
                     Act (41 of 1987, as amended) for connections lower than 500 V is ±10 %.

                    NRS 034-1

                     Voltage regulation allocation:

                     MV source             :   1,5 to 3 %

                     MV distributor        :   3%

                     Transformer           :   2%

                     LV feeder             :   8%

                     Service connector     :   2%

                     TOTAL                 : 18 % (2 % spare)

                    NRS 048-2 : 2004

                     Maximum deviation from declared voltages

                     < 500 V               :   ± 10 %

                     > 500 V               :   ±5%

10.2          ELECTRICAL BUILDING INSTALLATION

              a)     Load estimates

                          Building with air-conditioning           :   120 VA/m2

                          Building without air conditioning        :   50 - 60 VA/m2




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