194. (1) A person directing workers who perform welding, burning or cutting operations shall be a competent person.  R.R.O. 1990, Reg. 854, s. 194 (1). (2) Every worker who as part of his or her work performs welding, burning or cutting operations shall be a competent person.  R.R.O. 1990, Reg. 854, s. 194 (2). (3) Protection for workers to protect them against injury from fumes, radiation and electric arcs produced during welding, burning or cutting operations shall be provided and used.  R.R.O. 1990, Reg. 854, s. 194 (3). (4) A device to extinguish a fire that may be caused by heat or cuttings produced during welding, burning or cutting shall be provided with each oxygen-acetylene unit.  R.R.O. 1990, Reg. 854, s. 194 (4). (5) The device required by subsection (4) shall, (a)  have a capacity for extinguishing a fire that is equal to or greater than a minimum Underwriters’ Laboratories of Canada classification of 1A 10B; and (b)  be suitable for class A and B fires.  R.R.O. 1990, Reg. 854, s. 194 (5). (6) Equipment for welding, burning or cutting shall be protected against physical damage and from damage by heat, fire and sparks.  R.R.O. 1990, Reg. 854, s. 194 (6). (7) No gas welding, burning or cutting equipment shall be used unless it is free from defects, leaks, oil and grease.  R.R.O. 1990, Reg. 854, s. 194 (7). (8) Acetylene cylinders shall be placed in an upright position for at least thirty minutes before use.  R.R.O. 1990, Reg. 854, s. 194 (8). (9) The valve protection cover or cap of an oxygen or acetylene cylinder shall be secured in place when the cylinder is not in use and, in the case of a threaded cover or cap, the cover or cap shall be secured at least hand-tight.  R.R.O. 1990, Reg. 854, s. 194 (9). (10) The valves of oxygen and acetylene cylinders shall be closed when, (a)  a job is completed; (b)  the oxygen and acetylene cylinders are on portable units and unattended underground; and (c)  the oxygen and acetylene cylinders are transported.  R.R.O. 1990, Reg. 854, s. 194 (10). (11) The regulators and manifolds of an oxygen or acetylene cylinder shall be disconnected when the cylinder is being transported underground, unless the construction of the cylinder is such that it would not endanger worker health and safety for the regulators and manifolds to remain connected when the cylinder is being transported underground. O. Reg. 187/19, s. 11. (12) Unless procedures for safe use have been established by a supervisor in charge of the workplace, a charged gas system installed for welding, burning or cutting shall not be used for any other purpose.  R.R.O. 1990, Reg. 854, s. 194 (12). (13) An insulated conductor of adequate size shall be used to carry the welding current back to an electric welder unless another safe return path has been provided.  R.R.O. 1990, Reg. 854, s. 194 (13). (14) No welding, cutting, burning or soldering shall be done on a container in which an explosive or flammable substance has been stored unless the substance, (a)  has been completely removed; or (b)  has been made non-flammable or non-explosive.  R.R.O. 1990, Reg. 854, s. 194 (14). (15) No explosive or flammable substance shall be put in a container on which welding, burning, cutting or brazing has been done until the container has cooled sufficiently to prevent ignition of the substance.  R.R.O. 1990, Reg. 854, s. 194 (15). (16) A second worker who is a competent person shall attend oxygen and acetylene control devices when oxygen and acetylene cylinders are set up in, (a)  a position not readily available to the worker performing cutting, welding or burning operations; and (b)  a shaft conveyance while a worker is welding, burning or cutting on or from the conveyance.  R.R.O. 1990, Reg. 854, s. 194 (16).