hot works

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169 (3) An employer must ensure that the tests referred to in subsection (2)(d) are repeated at regular intervals appropriate to the hazard associated with the work being performed. ## Hot taps 170 (1) An employer must develop procedures in a hot tap plan specific to the type or class of hot tap work being performed before hot tap work begins. - 170 (2) The employer must ensure that the plan includes - (a) a site hazard analysis, - (b) a description of the sequence of events, - (c) safety precautions to address the hazards, and - (d) an emergency response plan. - 170 (3) The employer must ensure that - (a) only competent workers are permitted to carry out a hot tap operation, - (b) the point in the pressure containing barrier to be hot tapped is checked and strong enough for the hot tap to be done safely, - (c) adequate working space is available at the location of the hot tap, - (d) exit routes are available and their locations known by workers involved in the work, - (e) workers wear appropriate personal protective equipment when a hot tap is performed on equipment containing hydrocarbons, combustible fluids, superheated steam or any other hazardous material, - (f) material being supplied to the equipment being hot tapped can be shut off immediately in an emergency, - (g) the hot tap machine and fittings are of adequate design and capability for the process, conditions, pressure and temperature, and - (h) the pressure in the equipment being hot tapped is as low as practical during the hot tap operation. 170 (4) An employer must ensure, where reasonably practicable, that a hot tap is not undertaken if at the proposed hot tap location - (a) the equipment contains a harmful substance, - (b) the equipment is in hydrogen service, or - (c) the equipment contains an explosive mixture. ## Spray operations 170.1 (1) An employer must ensure that a spray booth used to apply flammable substances is provided with ventilation in accordance with Part 26 and that the venti…

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - of ignition include but are not limited to open flames; lightning; smoking; cutting and welding; hot surfaces; frictional heat; static, electrical, any mechanical sparks; spontaneous ignition, including heat-producing chemical reactions; and radiant heat. - (ii) You must not dispense Category 1 or 2 flammable liquids, or Category 3 flammable liquids with flashpoint below 100°F (37.8°C), into containers unless the nozzle and container are electrically interconnected. - Where the metallic floorplate on which the container stands while filling is electrically connected to the fill stem or where the fill stem is bonded to the container during filling operations by means of a bond wire, the provisions of this section must be deemed to have been complied with. ## (b) Maintenance and repair . - (i) When necessary to do maintenance work in a flammable liquid processing area, the work must be authorized by a responsible representative of the employer. - (ii) You must only permit hot work such as welding or cutting operations, use of spark-producing power tools, and chipping operations only under supervision of an individual in responsible charge who must make an inspection of the area to be sure that it is safe for the work to be done and that safe procedures will be followed for the work specified. ## (c) Electrical . - (i) You must install all electrical wiring and equipment within storage or processing areas according to chapter 296-24 WAC Part L. - (ii) Locations where flammable vapor-air mixtures may exist under normal operations must be classified Category 1 or 2 flammable liquids, or Category 3 flammable liquids with a flashpoint below 100°F (37.8°C), Division 1 according to the requirements of chapter 296-24 WAC Part L. For those pieces of equipment in…

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ ## WAC 296-24-[redacted postal code] Portable welding machines. - (1) Counter-balance . All portable welding guns must have suitable counter-balanced devices for supporting the guns, including cables, unless the design of the gun or fixture makes counterbalancing impractical or unnecessary. - (2) Safety chains . All portable welding guns, transformers and related equipment that is suspended from overhead structures, eye beams, trolleys, etc., must be equipped with safety chains or cables. Safety chains or cables must be capable of supporting the total shock load in the event of failure of any component of the supporting system. - (3) Clevis . When trolleys are used to support portable welding equipment, they must be equipped with suitable forged steel clevis for the attachment of safety chains. Each clevis must be capable of supporting the total shock load of the suspended equipment in the event of trolley failure. - (4) Switch guards . All initiating switches, including retraction and dual schedule switches, located on the portable welding gun must be equipped with suitable guards capable of preventing accidental initiation through contact with fixturing, operator's clothing, etc. Initiating switch voltage must not exceed 24 volts. - (5) Moving holder . The movable holder, where it enters the gun frame, must have sufficient clearance to prevent the shearing of fingers carelessly placed on the operating movable holder. - (6) Grounding . The secondary and case of all portable welding transformers must be grounded. Secondary grounding may be by center tapped secondary or by a center tapped grounding reactor connected across the secondary. [Statutory Authority: RCW 49.17.010, .040, .050, and .060. 15-24-100 (Order 15-04), § 296-24-[redacted postal…

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- (i) operate below the temperature that would ignite a flammable substance present in the hazardous location, or - (ii) are shielded or blanketed in such a way as to prevent a flammable substance in the hazardous location from contacting the surface, ## and - (c) the combustion air intake and exhaust discharge are equipped with a flame arresting device or are located outside the hazardous location. 168 (6) If it is not reasonably practicable to comply with subsection (5)(b), an employer must ensure that another effective safeguard is established. ## Hot work 169 (1) Despite any other section in this Part, an employer must ensure that hot work is done in accordance with subsections (2) and (3) if - (a) the work area is a hazardous location, or - (b) the work area is not normally a hazardous location but an explosive atmosphere may exist for a limited time because - (i) a flammable substance is or may be in the atmosphere of the work area, - (ii) a flammable substance is or may be stored, handled, processed or used in the location, - (iii) the hot work is on or in an installation or item of equipment that contains a flammable substance or its residue, or - (iv) the hot work is on a vessel that contains residue that may release a flammable gas or vapour when exposed to heat. - 169 (2) An employer must ensure that hot work is not begun until - (a) a hot work permit is issued that indicates - (i) the nature of the hazard, - (ii) the type and frequency of atmospheric testing required, - (iii) the safe work procedures and precautionary measures to be taken, and - (iv) the protective equipment required, - (b) the hot work location is - (i) cleared of combustible materials, or - (ii) suitably isolated from combustible materials, - (c) procedures are implemented to ensure continuous safe performance of the hot work, and - (d) testing shows that the atmosphere does not contain - (i) a flammable substance, in a mixture with air, in an amount exceeding 20 percent of that …

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has thoroughly inspected the entire area surrounding the area around the operation to ensure that all combustible, flammable or explosive material, dust, gas or vapour has been removed from the area, if possible, or that adequate precautions have been taken to prevent fire or explosion. ## Employer's responsibility respecting inspection 275 (2) An employer shall not permit any welding, cut -ting, burning or soldering operation until the precautions required by subsection (1) have been carried out. ## Fire prevention measures 275 (3) Clause 11.7 of CSA standard W117.2-12 (R2017), 'Safety in welding, cutting and allied proc -esses' or a standard offering equivalent or better protec -tion shall be used as a guide to establish suitable fire ex -tinguishing measures and other fire prevention measures. 2022-79 ## Clothing Protection ## Protective equipment 276 An employer shall ensure that an employee en -gaged in a welding, cutting, burning or soldering opera -tion wears, and an employee engaged in such an opera -tion shall wear, appropriate protective equipment except that - (a) the protective gloves required by para -graph 42(a) shall be leather gauntlet type gloves with arm protection, and - (b) the adequate body covering required by para -graph 42(c) shall be flame retardant work clothing and an apron of leather or of other material offering equivalent protection. ## Screening 277 (1) An employer shall ensure that an employee working in the area and not engaged in a welding, cut -ting, burning or soldering operation is protected from harmful radiation by providing adequate screening around the operation or by preventing the employee's entry to the area where the operation is being conducted. brasage avant d'avoir inspecté avec soin le secteur entier qui entoure le secteur encerclant le lieu de l'opération pour s'assurer que tous les combustibles, les matériaux inflammables ou explosifs, la poussière,…

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## 29 CFR 1910 (OSHA) - (ii) Piping systems (including piping components such as valves); - (iii) Relief and vent systems and devices; - (iv) Emergency shutdown systems; - (v) Controls (including monitoring devices and sensors, alarms, and interlocks) and, - (vi) Pumps. - (2) Written procedures. The employer shall establish and implement written procedures to maintain the on-going integrity of process equipment. - (3) Training for process maintenance activities. The employer shall train each employee involved in maintaining the on-going integrity of process equipment in an overview of that process and its hazards and in the procedures applicable to the employee's job tasks to assure that the employee can perform the job tasks in a safe manner. - (4) Inspection and testing. (i) Inspections and tests shall be performed on process equipment. - (ii) Inspection and testing procedures shall follow recognized and generally accepted good engineering practices. - (iii) The frequency of inspections and tests of process equipment shall be consistent with applicable manufacturers' recommendations and good engineering practices, and more frequently if determined to be necessary by prior operating experience. - (iv) The employer shall document each inspection and test that has been performed on process equipment. The documentation shall identify the date of the inspection or test, the name of the person who performed the inspection or test, the serial number or other identifier of the equipment on which the inspection or test was performed, a description of the inspection or test performed, and the results of the inspection or test. - (5) Equipment deficiencies. The employer shall correct deficiencies in equipment that are outside acceptable limits (defined by the process safety information in paragraph (d) of this section) before further use or in a safe and timely manner when necessary means are taken to assure safe operation. - (6) Quality assurance. (i) In the construction o…

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - Note: In gas welding or oxygen cutting where the torch produces a high yellow light, is not desirable to use a filter or lens that absorbs the yellow or sodium line in the visible light of the operation. - (j) All filter lenses and plates must meet the test for transmission of radiant energy prescribed in ANSI Z 87.1-1968--American National Standard Practice for Occupational and Educational Eye and Face Protection. - (3) Protection from arc welding rays . Where the work permits, the welder should be enclosed in an individual booth painted with a finish of low-reflectivity such as zinc oxide (an important factor for absorbing ultraviolet radiations) and lamp black, or must be enclosed with noncombustible screens similarly painted. Booths and screens must permit circulation of air at floor level. You must protect workers or other persons adjacent to the welding areas from the rays by noncombustible or flameproof screens or shields or they must be required to wear appropriate goggles. [Statutory Authority: RCW 49.17.010, .040, .050, and .060. 15-24-100 (Order 15-04), § 296-24-[redacted postal code], filed 12/01/2015, effective 01/05/2016. Statutory Authority: RCW 49.17.010, .040, .050. 01-11-038 (Order 99-36), § 296-24-[redacted postal code], filed 05/09/01, effective 09/01/01. Statutory Authority: Order 73-5, 296-24-[redacted postal code], filed 5/9/73 and Order 73-4, 296-24-[redacted postal code], filed 5/7/73.] ## WAC 296-24-[redacted postal code] Protective clothing. - (1) General requirements . You must protect employees exposed to the hazards created by welding, cutting, or brazing operations by personal protective equipment in accordance with the requirements of chapter 296-24 WAC, Part I, and WAC [redacted identifier]. Appropriate prote…

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Oregon Administrative Rules Oregon Occupational Safety and Health Division ## FIRE PREVENTION J ## §1926.352 Fire Prevention. - (a) When practical, objects to be welded, cut, or heated shall be moved to a designated safe location or, if the objects to be welded, cut, or heated cannot be readily moved, all movable fire hazards in the vicinity shall be taken to a safe place, or otherwise protected. - (b) If the object to be welded, cut, or heated cannot be moved and if all the fire hazards cannot be removed, positive means shall be taken to confine the heat, sparks, and slag, and to protect the immovable fire hazards from them. - (c) No welding, cutting, or heating shall be done where the application of flammable paints, or the presence of other flammable compounds, or heavy dust concentrations creates a hazard. - (d) Suitable fire extinguishing equipment shall be immediately available in the work area and shall be maintained in a state of readiness for instant use. - (e) When the welding, cutting, or heating operation is such that normal fire prevention precautions are not sufficient, additional personnel shall be assigned to guard against fire while the actual welding, cutting, or heating operation is being performed, and for a sufficient period of time after completion of the work to ensure that no possibility of fire exists. Such personnel shall be instructed as to the specific anticipated fire hazards and how the firefighting equipment provided is to be used. - (f) When welding, cutting, or heating is performed on walls, floors, and ceilings, since direct penetration of sparks or heat transfer may introduce a fire hazard to an adjacent area, the same precautions shall be taken on the opposite side as are taken on the side on which the welding is being performed. - (g) For the elimination of possible fire in enclosed spaces as a result of gas escaping through leaking or improperly closed torch valves, the gas supply to the torch shall be positively shut off…

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## 29 CFR 1910 (OSHA) - (2) The permit shall document that the fire prevention and protection requirements in 29 CFR 1910.252(a) have been implemented prior to beginning the hot work operations; it shall indicate the date(s) authorized for hot work; and identify the object on which hot work is to be performed. The permit shall be kept on file until completion of the hot work operations. - (l) Management of change. (1) The employer shall establish and implement written procedures to manage changes (except for 'replacements in kind') to process chemicals, technology, equipment, and procedures; and, changes to facilities that affect a covered process. - (2) The procedures shall assure that the following considerations are addressed prior to any change: - (i) The technical basis for the proposed change; - (ii) Impact of change on safety and health; - (iii) Modifications to operating procedures; - (iv) Necessary time period for the change; and, - (v) Authorization requirements for the proposed change. - (3) Employees involved in operating a process and maintenance and contract employees whose job tasks will be affected by a change in the process shall be informed of, and trained in, the change prior to start-up of the process or affected part of the process. - (4) If a change covered by this paragraph results in a change in the process safety information required by paragraph (d) of this section, such information shall be updated accordingly. - (5) If a change covered by this paragraph results in a change in the operating procedures or practices required by paragraph (f) of this section, such procedures or practices shall be updated accordingly. - (m) Incident investigation. (1) The employer shall investigate each incident which resulted in, or could reasonably have resulted in a catastrophic release of highly hazardous chemical in the workplace. - (2) An incident investigation shall be initiated as promptly as possible, but not later than 48 hours following the inciden…

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- (b) smoke or use an open flame or other source of ignition. - (2) If it is not feasible to avoid performing work involving the use of any equipment, machinery or tool that may provide a source of ignition in an area that has an atmosphere that contains or is likely to contain explosive concentrations of combustible dust or in an area where combustible dust has accumulated in a sufficient quantity to be a fire hazard, the following shall apply: - (a) the atmosphere and surfaces in the area where the work is to be performed and within that portion of the surrounding area that is accessible to sparks or pieces of hot metal produced by the work shall be substantially free of combustible dust; - (b) where any equipment, machinery or tool produces combustible dust that may reach the areas referred to in paragraph (a), the equipment, machinery or tool shall be made inoperative prior to and during the time the work is being performed; - (c) if feasible, the area where the work is to be performed shall be enclosed to prevent the escape of sparks or pieces of hot metal produced by the work; - (d) all openings in floors and walls through which sparks or pieces of hot metal produced by the work may pass shall be sealed or covered to prevent such passage; - (e) any combustible materials within the areas referred to in paragraph (a) shall be removed or, if it is not feasible, shall be covered with a non-combustible protective covering; - (f) floors and walls of combustible material within the areas referred to in paragraph (a) shall be protected from the fire hazard by - (i) drenching the surfaces of the floors and walls with water, or - (ii) covering the floors and walls with a non-combustible protective covering; - (g) the work shall be performed under the supervision of a qualified person, who shall remain in the work area while the work is performed and for 30 minutes thereafter; an…

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- (h) the pressure in the pipe or equipment being hot tapped is as low as possible during the hot tapping. 2022-79 ## General ## Work surfaces 280 An employer shall ensure that - (a) tables, jigs or work benches used for support during welding, cutting, burning or soldering opera -tions are made of fire resistive materials, and - (b) all surfaces in welding, cutting, burning or sol -dering areas are made of non-reflective materials. ## Protection of compressed gas hose or welding cable 281 Where in a welding, cutting, burning or soldering operation a compressed gas hose or welding cable is placed over a sharp edge or may be struck by falling ob -jects, an employer shall ensure that suitable protection for the hose or cable is provided. ## Inspection of equipment before use 282 (1) An employer and employee shall each ensure that welding and cutting torches and their fittings and regulators are inspected before use to ensure they are in a safe working condition. 282 (2) Where inspection reveals a defect in the equip -ment mentioned in subsection (1), an employer shall en -sure that the equipment is repaired by a competent per -son and that replacement parts or fittings meet the manufacturer's specifications. ## Leak of gas supply 283 An employer and employee shall each ensure that the supply of gas is cut off to any part of the welding, cutting, burning or soldering operation when a leak of the supply of gas being used develops and that work is not resumed until the leak is repaired. - h) la pression dans le tuyau ou l'équipement faisant l'objet du piquage en charge est aussi basse que pos -sible pendant les travaux. 2022-79 ## Général ## Surfaces de travail 280 L'employeur doit s'assurer que - a) les tables, tréteaux, établis utilisés comme sup -port durant les opérations de soudage, de découpage, de brûlage et de brasage sont faits de matériaux à l'épreuve du f…

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## (3) The employer must ensure that - (a) any person who is granted access to a hazardous confined space has the equipment specified in paragraph 11.03 2 ( )(a), failing which the employer must provide it; - (b) any person who is to take part in rescue operations has the protection equipment and emergency equipment set out in paragraph 11.03 2 ( )(c); and - (c) any person who enters, exits or occupies a hazardous confined space complies with the procedures established in subsection 11.04 1 ( ) and uses the protection equipment specified in paragraphs 11.03 2 ( )(a) and (b). SOR/2021-143, s. 1. ## Closing off a Confined Space - 11.09 The employer must ensure that no person closes off a confined space unless a qualified person has verified that no person is inside it. SOR/2021-143, s. 1. ## Hot Work - 11.1 (1) Unless a qualified person has determined that the work can be performed safely, the employer must ensure that hot work is not performed in a hazardous confined space that contains - (a) an explosive or flammable hazardous substance in a concentration in excess of 10 % of its lower explosive limit; or - (b) oxygen in a concentration in excess of 23 %. - (2) If hot work is to be performed in a hazardous confined space that contains concentrations of flammable or explosive materials in excess of the concentrations set out in paragraph ( 1 )(a) or (b), - (a) a qualified person must patrol the area surrounding the hazardous confined space and maintain a fireprotection watch in that area until the fire hazard has passed; and - (b) the employer must ensure that the emergency equipment specified under paragraph 11.03 2 ( )(c) is provided in the area referred to in paragraph (a). - (3) If an airborne hazardous substance can be produced by hot work in a hazardous confined space, the employer - (3) L'employeur veille à ce que : - a) toute personne à qui l'accès à un espace clos dangereux est donné dispo…