Approved HSEC, Feb 07 University of Surrey Health, Safety, and Environment Manual Electrical Safety Hazards and Risks 1. Electricity is a serious hazard that can cause serious injuries, ill health, burns, or death. Electricity can cause fires and explosions due to overheating of cables or appliances. Unprotected or inappropriate electrical equipment can cause ignition of flammable or explosive atmospheres. Machinery that is powered by electricity can operate erratically or out of control due to electrical faults. Unsuitable or incorrectly installed electrical systems and cabling can also interfere with and affect operation of other systems and processes. Scope 2. This document sets out University requirements for electrical safety. This includes arrangements for power supplies, distribution, and connection of hard-wired installations including machinery and electrical equipment; the installation and commissioning of equipment designed and built in the University; the selection and safe use of electrical equipment; restrictions on electrical equipment in flammable and explosive atmospheres; visual inspection of portable appliances; and electrical testing of portable appliances. It also identifies those persons in the University who have key roles in advising the University on electrical safety matters and for approving the suitability and safe use of electrical installations and equipment. Arrangements 3. Estates and Facilities Management (E&FM) are responsible for power supplies, distribution, and connection of hard-wired installations including machinery and electrical equipment throughout the University. 4. The Director and Deputy Directors of E&FM are accountable for ensuring that their staff and contractors understand what they can do, and must not do, in relation to electrical distribution and electrical equipment and that staff who carry out electrical work are competent to do so. 5. The Principal Electrical Engineer is the University's designated competent person for electrical supply and distribution systems and for equipment connected to these systems. In addition the University has appointed 3 other named persons as competent for the operational control of these systems: see paragraph 17. High voltage systems 6. These competent persons are accountable to the Director of E&FM for the operation of the 11kV, ie High Voltage, substations and distribution system on campus including the University's Combined Heat and Power (CHP) systems. System details and drawings of the high voltage distribution systems are held and maintained by E&FM. 7. Inspection and testing of the distribution system and sub-stations is carried out by contractors appointed by the University. This contract is managed by the Principal Electrical Engineer. Fixed distribution systems 8. The low voltage, ie 400V and below, fixed distribution system at the University is maintained and inspected to protocols laid down by the National Inspection Council of Electrical Approved HSEC, Feb 07 Installation Contractors (NICEIC). E&FM, with the Principal Electrical Engineer as the principal duty holder, are accredited by NICEIC as a conforming body. The Principal Electrical Engineer is supported by a Qualified Supervisor who carries out inspections and maintains the documentation. The frequency of inspection and testing is carried out to the sector standard of every 7 to 10 years. The schedule of testing and the records of testing carried out to date are held by E&FM. The NICEIC carries out an annual audit. Hard wired installations 9. The electrical integrity of hard wired installations must be connected, modified and tested only by E&FM or by their authorised contractors. Portable electrical appliances The term ‘Portable electrical appliances’ covers any appliance, machinery, or research equipment plugged into the electrical distribution system. 10. Portable electrical appliances must only be connected to or disconnected from the electrical distribution system if the power supply has been isolated. This is normally achieved by switching off at the socket. If there is no isolation switch at the socket, then arrangements must be made with E&FM to isolate at the distribution board. 11. All portable electrical appliances on campus or used for University business (except any personal equipment which is covered specifically in paragraphs 13 to 15) are subject to the following arrangements. Users of portable electrical appliances should be on the lookout for damage to portable electrical appliances and to their cabling and plugs. If any doubt exists over the condition or safety of any item of electrical equipment then it must be withdrawn from service until it can be verified safe for use by someone who has been trained in portable appliance testing or by a competent electrician. Portable electrical appliances must be formally inspected and tested and must display a test label or tag indicating the test date and validity period. New portable electrical appliances must be visually inspected before use and display a test label or tag indicating when formal inspection and testing must be carried out. The frequency of testing of portable electrical appliances varies depending upon the type of equipment and the environment in which it is used: see Appendix. Heads of School are accountable for ensuring that arrangements for portable appliance testing are established and maintained in their areas. Estates & Facilities Management can arrange for portable appliance testing to be carried out by approved contractors for Schools and Departments. Portable appliance testing must be carried out by contractors appointed or approved by E&FM, or by staff who have been attended and passed training regarding guidance from the Institute of Electrical Engineers, IEE, and approved by the H&S Department. Any portable appliance that fails either a visual inspection or a formal test must be disconnected, withdrawn from service, marked as 'Unsafe - Not to be used', and either made safe by a competent electrician or disabled and disposed of according to University waste disposal requirements. Each School must hold up to date records of all portable electrical appliances. 12. Should additional space heating or cooling be required schools and departments must contact Estates & Facilities Management in the first instance. Bar heaters are banned on University premises. Personal equipment 13. The University recognises that with the ever increasing pace of technology staff and students are more likely to bring their own laptop computers, chargers for mobile phones, Approved HSEC, Feb 07 and digital organisers (PDAs) onto the campus. Staff and students using these items on the campus are responsible for ensuring that they comply with European and British Standards and that they are in a safe condition to use by verifying the following: The plug, cable and body of the laptop and/or charger do not show any signs of damage The plug is marked BS1363 (this indicates that the plug meets safety standards) The laptop or charger displays the following symbols: Class II (Double insulation) and European Standards Mark 14. Staff and students must not bring other privately owned electrical equipment which requires a mains supply into the University without first obtaining permission from the school/department’s electrical maintenance and testing scheduler (listed in school/departmental health and safety policies). If permission is given for such equipment then that equipment must be treated as set out in paragraphs 10 and 11. Personal equipment in residences 15. The requirements for portable electrical appliances brought into residences by residents are set in the Residents H&S Handbook. Design and build of electrical circuits 16. Electrical apparatus and circuitry designed or built at the University must be risk assessed in light of relevant H&S legislation. The risk assessments must be approved by the University’s H&S Advisor and by the Principal Electrical Engineer or by persons designated by them. 17. Appointed persons Principal Electrical Engineer and Senior Authorised Person: Other appointed competent electrical engineers: o Assistant Electrical Engineer o M&E Maintenance Engineer o Engineering Maintenance Assistant Electrical Principal Duty Holder (low voltage) Qualified Supervisor (low voltage) The contractor currently appointed to carry out inspection and testing of the high voltage distribution system and sub-stations is EDF Energy. Note: The Schedule to this policy contains the names of the current appointed persons. Further sources of information Code of Practice for In-Service Inspection and Testing of Electrical Equipment, Institute of Electrical Engineers (IEE), 1994, reprinted 2001 and 2003 Appendix: Frequency of inspection and testing of portable electrical appliances As set out in Table 1 to the Code of Practice for In-Service Inspection and Testing of Electrical Equipment, IEE Approved HSEC, Feb 07 Schedule: Appointed Persons Principal Electrical Engineer and Senior Authorised Person: to be appointed Other appointed competent electrical engineers: Assistant Electrical Engineer, Dale Meadows; M&E Maintenance Engineer, Peter Holland; Engineering Maintenance Assistant Electrical, Kevin Kerr Principal Duty Holder (low voltage) to be appointed and Qualified Supervisor (low voltage): Kevin Kerr The contractor currently appointed to carry out inspection and testing of the high voltage distribution system and sub-stations is EDF Energy.