Presentation on theme: "HOT WORK PROCEDURES Welding and Hot Work, such as brazing or grinding present a significant opportunity for fire and injury. CCR Title 8 Sub Chapter 7,"— Presentation transcript:
1 HOT WORK PROCEDURESWelding and Hot Work, such as brazing or grinding present a significant opportunity for fire and injury. CCR Title 8 Sub Chapter 7, sections , & sections
2 Welding / Hot Work Procedures Hot Work Procedures Are - Any activity which results in sparks, fire, molten slag, or hot material which has the potential to cause fires or explosion.All combustibles shall be relocated at least 35 feet from the work site.Where relocation is impractical, combustibles shall be protected with flameproof covers, shielded with metal guards, curtains or wet down to help prevent ignition of materials.Where cutting or welding is done near walls, partitions, ceiling, or a roof of combustible construction, fire-resistant shields or guards shall be provided to prevent ignition.Ducts, conveyor systems, and piping that might carry sparks to distant combustibles shall be protected, shut down or closed off.Designate a fire watch, a second fire watch may be required on the back side of walls were welding is taking place.
3 Welding / Hot Work Procedures (continued) Portable welding curtains or shields installed to protect other workers in areaInsure “Hot Work Permit” is initiated. By SupervisorRequired PPE on site.Respirator or dust maskGlovesFace shield with required tent protectionEquipment inspected:hoses, fittings, tips cleaned, regulators & gages, electric leads checked, correct voltage setting on unit, e.g…
4 When Cutting or Welding Shall “Not Be Permitted” In areas not authorized by management.If sprinkler protection is impaired.In potentially explosive atmospheres, e.g…a flammable atmosphere.In storage areas of exposed, readily ignitable materials.Were dust accumulation is 1/16 of an inch within 35 feet of the area.All dust accumulation shall be removed before welding / hot work is started.
5 The Fire Watch It is their ONLY duty, during welding. How to operate a fire extinguisher to extinguish a fire. Not to cool beer!Know location of fire alarm and how to activate.Remain on site at least one half hour after completion of work.
6 Fire Prevention Measures Welding areas should meet the following requirements:Floors swept & cleared of combustibles 35 ft. radius of work area.Flammable and combustible liquids kept 35 ft. radius of work area.Adequate ventilation providing 20 air changes per hourSuction hood or fan – draw air out of areaAt least one Co2 or dry chemical fire extinguisher – on siteProtective dividers to contain sparks and slagWelding curtainsNon-combustible wallsFire resistant tarps & blankets
7 SOP – Electric Welding Perform Safety Check: Ensure electrical cord, electrode holder and cables are free from defects – no cable splices within 10 feet of electrode holder.Ensure welding unit is properly grounded. This helps to avoid over heatingAll defective equipment shall be repaired or replaced before using.Remove all jewelry – rings, watches, bracelets, etc…Ensure PPE e.g.. welding hood, gloves, rubber boots or soled shoes, apron, fume mask are available and in good condition.Ensure fire extinguisher is charged and available.Ensure adequate ventilation and lighting is in place.Set Voltage Regulator to Manufactures specifications.Avoid electrical shock DON’T wrap cables around any body part.
8 SOP – Gas Welding Perform Safety Checks: Ensure fittings are tight Inspect hoses for for cuts and frayed areas.Repair or replace any defective equipment before usingSet gauges to desired PSI.Ensure that sufficient PPE is made available – they are ?Fire extinguisher charged and ready.Locate welding screens to protect employee’s – DON’T block you exit.Ensure that adequate ventilation and lighting are in place.
9 Hot Work Permit Identifies the procedures to be followed: Managers / SupervisorsEmployee performing the weldingFire watchContractorsPermit remains on the job siteExceptions to the permit requirementsGeneral Safety Rules for Welding, Cutting and Hot WorkPermit and check list.