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DJ CONSULTING

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  • pg 1
									SOUTHWESTERN ELECTRICAL CO., INC.

NOVEMBER, 2008

FROM:          MANAGER

TO:            ALL EMPLOYEES

SUBJECT:       WELDING, CUTTING AND BRAZING FIRE PREVENTION
               AND PROTECTION

PURPOSE:

The purpose of the policy is to define the requirements for welding, cutting and brazing to
prevent fires and injuries on the jobsite.

PROGRAM ADMINISTRATOR:

Manager of operations has been assigned the administrative responsibility of Welding, Cutting
and Brazing Fire Prevention program.

HOT WORK:

SOUTHWESTERN ELECTRICAL CO., INC. will follow the hot work permit system. The
purpose of this procedure is to ensure that all steps are followed prior to and during any hot work.

HOT WORK MEANS: welding, grinding, cutting, burning, use of torch or other spark producing
activities

The following procedure specifies the minimum requirements for any Hot Work.

SUPERVISOR:

   (A) The supervisor shall be responsible for the safe handling of cutting and welding
       equipment and safe use of.
   (B) Shall determine the combustible materials and hazards areas present.
   (C) Shall protect combustibles from ignition by the following:
        (1) Have the work moved to a location free from danger
        (2) If work cannot be moved, have combustibles moved, or shielded.
   (D) Shall determine that fire protection and extinguishing equipment are at the site.
   (E) When fire watchers are required, and see that they are available at the site.



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SWECO POLICY#__34__11/2008
FIRST AID KITS:

First Aid Kits will be on site at all times.

CONFINED SPACE:

GENERAL. As used with this procedure a confined space is intended to mean a relatively small
or restricted space such as a tank, boiler, pressure vessel, or small compartments.

VENTILATION. Ventilation is a requirement when working in a confined space. Either air
movers, air or steam operated, or air movers (fans) will be used. Air movement must meet the
standard.

SECURING CYLINDERS & MACHINERY. When welding or cutting is being performed in
any confined spaces the gas cylinders and welding machines shall be left on the outside. Before
operations are started, heavy portable equipment mounted on wheels shall be securely blocked to
prevent accidental movement.

LIFELINES. When a welder must enter a confined space through a manhole or other small
opening, means shall be provided for quickly removing him/her in case of emergency.          Safety
body harness and lifelines will be attached to the welder's body so that his/her body cannot be
jammed in a small exit opening.        A trained attendant will be stationed outside to observe the
welder at all times.   A rescue procedure will be in place prior to any operations.

ELECTRODE REMOVAL. When arc welding is to be suspended for and substantial period of
time, such as lunch break, or when the welder will be out of the immediate work area, the
electrode will be removed from the holder.

GAS CYLINDER SHUT OFF. Gas cylinders will be stored outside the confined space and when
not in use the valves will be closed. When practicable, long periods of not using the torch, it
should be removed. The torch and hose will be removed when the work is shutdown for lunch
and at night.

WARNING SIGNS. After welding operations are completed, the welder will mark the hot metal
to provide warning to other workers. This can be done with sign, or barricades.

SPECIAL CAUTION:

Special caution shall be exercised in welding or burning of bronze, brass, galvanized iron,
cadmium plating, zinc, mercury, beryllium, or painted piping which might produce harmful
fumes and poisoning. Adequate ventilation shall be provided when the work is in progress.



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SWECO POLICY#__34__11/2008
PERMITS:

When required a HOT WORK PERMIT will be issued for hot work operations. The permit
shall document that the fire prevention and protection requirements in 29 CFR 1910.252 (a) have
been implemented prior to beginning hot work.         Permit shall indicate: Date authorized for
hot work, identify object on which hot work will be performed, and permit will be kept on file.

FIRE PREVENTION: 29 CFR 1910.252 (a)

Fire Hazards - If the object to be welded or cut cannot be readily moved, all movable fire hazards
in the vicinity shall be taken to a safe place.

Guards - If objects to be welded or cut cannot be moved or if all the fire hazards cannot be
removed, then guards shall be used to confine the heat, sparks, and slag.
If the object to be welded or cut cannot be moved and if all the fire hazards cannot be
removed, then welding and cutting will not be performed.

Combustible material - Wherever there are floor openings or cracks in the flooring that cannot be
closed, precautions shall be taken so that no readily combustible materials on the floor below will
be exposed to sparks, same for walls, open doorways, open or broken windows.

Fire extinguishers - Suitable fire extinguishing equipment shall be maintained in a state of
readiness for instant use.

FIRE WATCH:

Fire watchers shall be required whenever welding or cutting is performed in locations where
other than a minor fire might develop or:
  (1) Appreciable combustible material is closer than 35 feet
  (2) Appreciable combustibles are more than 35 feet away but are easily ignited by sparks
  (3) Wall or floor openings within 35 feet radius expose combustible material in adjacent areas
      including concealed spaces in walls or floors
  (4) Combustible materials are adjacent to opposite side of metal partitions, walls, ceilings, or
      roofs and are likely to be ignited by conductions or radiation

Fire watchers shall have fire extinguishing equipment readily available and be trained in its use.
They shall be familiar for sounding alarm. Fire watch shall be maintained for at least a half hour
after completion of welding or cutting.

If the object to be welded or cut cannot be moved and if all the fire hazards cannot be removed,
then
PROHIBITED AREAS:
(A) In areas not authorized by management

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SWECO POLICY#__34__11/2008
(B) In sprinklered buildings while such protection is impaired
(C) In presence of explosive atmosphere
(D) In areas near storage of large quantities of exposed, readily ignitable materials.

PROCEDURE:

All welding and burning equipment shall be inspected prior to beginning any welding or burning.
The Field Supervisor, in charge of the job, will be responsible for inspecting all welding and
burning equipment and job site inspection prior to authorizing any welding or cutting.

Welding leads shall be completely insulated and in good condition.

Oxygen and acetylene bottles shall be secured in a safe place and hoses shall be leak-free and
equipped with proper fittings, gauges, and regulators. A check valve shall be installed in both the
oxygen and acetylene lines to ensure that the gases do not back up into either regulator.
       Always purge hoses and torches when a cylinder is connected.

Hoses should not be hung or piled close to the cylinders when in use. This could hinder closing
cylinder valves in case of fire. A torch lighter shall never be carried into an area containing
combustible gas.

Arc welding machines shall be located in places free of combustible vapors.

Grounding of arc welding machines shall be made as close as possible to the point of operation.

Cutting torches and welding equipment shall be used on the job only by personnel designated by
the company supervisor, and by only qualified employees.

Shields worn by the welder shall incorporate hard hat protection.

Persons in the vicinity of welding should never look directly or indirectly at the welding arc
without protective goggles.

It is prohibited to cut or weld on steel drums that at one time contained flammable liquids or
gases.

A maximum amount of welding shall be performed on all new structures or equipment before it
is moved to the field in order to keep the amount of welding and burning in the field to a
minimum. Prior to issuance of a permit, vessels and tanks to be welded shall be washed out and
vented until explosimeter readings indicate the atmosphere is safe.

Test the atmosphere before and during the hot work at regular intervals.
If work is interrupted, test the atmosphere before any work is resumed.

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SWECO POLICY#__34__11/2008
The "HOT WORK PERMIT" shall be posted at the worksite in plain view.

OXYFUEL GAS WELDING

Cylinders will be secured with wire or chain at all times. Never lay cylinders down when
welding. Banks of combustible gas will be separated from oxygen by 20 feet or with a
noncombustible barricade at least 5 feet high having a fire-resistance rating of least one-half
hour. Compressed gas cylinders will be legibly marked. Empty cylinders will have their valves
closed. Acetylene cylinders shall be stored valve end up, and when not in use the valve will be
closed. Valve protection caps will not be used for lifting cylinders. When moving any gas
cylinder the valve will be closed and the valve cap protector will be in place. Do not drop or
bump cylinders. Do not use cylinders as rollers or support, whether full or empty.

Welders working for SOUTHWESTERN ELECTRICAL CO., INC.will be qualified to operate
the equipment and will be tested prior to doing any job. The field supervisor will be trained on
the oxygen or fuel-gas supply equipment. This training will include the normal operations,
emergency shutdown, and routine maintenance.

    a. Oxygen and fuel gas hoses shall be protected from flying sparks and hot slag. They shall
       be examined frequently for leaks, wear, and loose connection. Immediate action shall be
       taken to replace damaged or worn hoses and to correct unsafe conditions.
    b. The hose on oxy fuel welding units shall be racked when not in use. Master valves on
       oxygen and fuel gas cylinders shall be closed and the pressure bled from regulators and
       hoses after use.
    c. Torches shall be examined frequently for leaky valves and damaged nozzles and or tips.
    d. The cylinder valve shall be closed immediately if a hose catches on fire.
    e. Spark igniters shall be used to light welding torches. Matches and cigarette lighters shall
       not be used for this purpose.
    f. Flashback arrestors shall be provided to prevent the flame from passing down the hose
       into the fuel gas system.
    g. Cylinder valves must be shut off when not is use.
    h. Welders will post warning signs to mark hot metal prior to leaving the job site.
    i. When gas welding in a confined space the cylinders will be shut off during breaks, lunch
       and any other idle period. The hoses will be removed from the confined space during the
       same time period.




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SWECO POLICY#__34__11/2008
ARC WELDING

Welders working for SOUTHWESTERN ELECTRICAL CO., INC. will be qualified to operate
the equipment and tested prior to any welding. This requirement includes the welder to be
familiar with OSHA 1910.252(a)(b)&(c) and 1910.254.If gas shielded arc welding is done they
must be familiar with the American Welding Society Standard A6-1- 1966. A copy of this
standard is in office.
Maintenance: When there is a defect on the machine or any safety relate problem do not operate
the equipment - report this to the field supervisor. Repairs will be made only by a qualified
person. If a machine becomes wet it must be thoroughly dried and tested before you use it.
    a. Welders using arc welding equipment shall provide a protective screen around the arc
       when practicable and shall advise persons in the surrounding area not to look at the arc
       without appropriate eye protection.
    b. Suitable precautions shall be taken to avoid shock from arc welding equipment.
       Employees shall not stand in water while are welding. Proper protective equipment, such
       as rubber boots or rubber pads shall be used when it is necessary to arc weld in wet or
       high humidity condition. Energized (hot) electrode holder shall not be dipped in water.
    c. Cables with damaged insulation or exposed conductors shall not be used. If it is
       necessary to repair damaged cable, the repaired section shall have an insulating quality
       equal to that of the original cable. Splices shall never be made within 10 feet of the
       electrode holder.
    d. Cables shall be protected from vehicle traffic or other hazards that may subject them to
       being cut or pinched.
    e. Arc welding equipment shall be turned off when not in use.
    f. Before starting operations all connections must be checked for proper connections. The
       work lead must be firmly attached to the work. Coiled welding cable shall be spread out
       before use to avoid overheating and damage to insulation.
    g. Grounding of the welding machine frame must be checked. Make sure ground on
       portable machines.
    h. Check for leaks on cooling and fuel systems.
    i. Check the shutdown switch before each operation.
    j. Always follow the manufacturers' operations instruction.
    k. Place the electrode holders where they will not come in contact with anyone or
       conducting objects, fuel or compressed gas tanks when not in use.
    l. DO NOT use cable with a splice within 10 feet of the electrode.
       Do not coil or loop electrode cable around any part of your body.
    m. Cables with damaged insulation or bare wire showing must be repaired before use. Cable
       lengths can be connected with the proper connecting devices and they must be insulated.
       Remember not splice within 10 feet of the electrode holder.

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SWECO POLICY#__34__11/2008
GENERAL GUIDELINES

   a. Welding operation shall be conducted according to the requirements of the facility's
       procedures.
   b. Welding shall be performed by welders who are qualified in the type of welding they are
       to perform.
   c. Welders and welder's helper shall use the proper protective clothing and eye protection as
       required.
   d. All persons shall stand to one side of any compress gas cylinder regulator gauge when
       pressure is being applied to it.
   f. When a welder is cutting or welding on a pipeline, no person shall be in front or near the
       open pipe end.
   g. Respiratory protection may be required under special conditions, including, but not
       limited to, welding or burning in the following circumstances:
        * On stainless steel, galvanized, lead based metals, zinc, cadmium, mercury, beryllium,
           or coated materials, such as, but not limited to, paints that contain lead or mercury;
        * With fluxes or other materials containing fluorides;
        * Inside a confined space;
        * Where ventilation is inadequate;
        * In an oxygen-deficient atmosphere.
    h. Cylinders must be secured with wire or chain. Portable wheeled welders must be secure
       to prevent them from moving accidentally.
    i. When welding, cutting or brazing in a confined space mechanical ventilation will be
       installed.
    j. Fire watch will be assigned whenever is there is a possibility of:
        * A fire other than a minor fire.
        * Combustible materials are closer than 35 ft.
        * Combustible materials are 35 ft. or more away but easily ignited,
        * Wall or floor openings within 35 feet radius expose combustible materials.
        * Combustible materials are adjacent to the opposite side of the metal partitions,
           ceilings or roof. (This includes broken windows).
   k. Fire watchers will be trained on the fire extinguishers they have on standby. They must
       also know the alarm procedure of the location they are working at. Fire extinguishers
       must be readily available at all times (during hot work).
    l. Fire watch will remain on duty 30 minutes after the last hot work is performed.
   m. Supervisors of welders must be trained in the safe work practices that relate to the job and
       equipment that is being used to perform the task.
   n. All material that can be moved to a safe place for welding, cutting, brazing and other hot
       work.
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SWECO POLICY#__34__11/2008
   o. If the object to be welded or cut cannot be move to a safe location and if all of the hazards
      cannot be removed, and then guards will be in place prior to any hot work. All slag and
      sparks will be confined to the immediate area.
   p. Before welding, cutting or other hot work is performed the area will be inspected by the
      field supervisor and all hazards will be corrected prior to work. The Job Site Inspection
      form will be completed and the Hot Work Permit will be issued by the client. All
      precautions on the permit will be followed.
   q. Welders and anyone else inside a confined space will wear a body harness and life line.
      The line must be attached to allow the person to be lifted out of the space. A "Hole
      Watch" will be on duty at all times. The Hole Watch must be trained on how to give an
      alarm.
   r. When arc welding is shut down for a period of time (lunch, break and etc.) the electrode
      will be removed from the holder.




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SWECO POLICY#__34__11/2008

								
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