1111 CRAFTSMAN WAY 2023-07-12 - Laserfiche WebLink

Revised 05/01/2016 with fog nozzle, which has been uncoiled and placed under pressure, must be immediately available for instant use in the immediate vicinity, consistent with avoiding freezing of the hose. Before welding, cutting or heating is commenced in enclosed spaces on metals covered by soft and greasy preservatives, the following precautions shall betaken: 1. A competent person shall test the atmosphere in the space to ensure that it does not contain explos✓e vapors, since there is a possibity that some soft and greasy preservatives may have flash points below temperatures that may be expected to occur naturally. If such vapors are determined to be present, no hot work shall be commenced until such precautions have been taken as will ensure that the wEding, cutting or heating can be performed in safety. 2. The preservative coatings shall be removed for a sufficient dstance from the area to be heated to ensure that the temperature of the unstripped metal will not be appreciably raised. Artificial cooling of the metal surrounding the heated area may be used to limit the size of the area required to be cleaned. The prohibition contained in 1915.34(b)(2) shall apply. Immediately after welding, cutting or heating is commenced in enclosed spaces on metal covered by soft and greasy preservatives, and at frequent intervals thereafter, a competent person shall make tests to ensure that no flammable vapors are being produced by the coatings. 3. f such vapors are determined to be present, the operation shall be stopped immediately and shall not be resumed until such additional precautions have been taken as are necessary to ensure that the operation can be resumed safely. Posting Fire Watches A fire watch must be posted inthe following conditions: 1. A Marine Chemist or a shipyard Competent Person requires that a fire watch be posted; 2. Slag, weld splatter, or sparks might pass through an opening and cause a fire; 3. Fire-resistant guards or curtains are not used to prevent ignition of combustible materials on or near decks, bulkheads, partitions, or overheads; 4. Combustible material closer than 35 ft. (10.7m) to the hot work in either the horizontal or vertical direction cannot be removed, protected with flame -proof covers, or otherwise shielded with metal or fire-resistant guards or curtains; 5. The hot work is carried out on or near insulation, combustible coatings, or sandwich -type construction that cannot be shielded, cut back, or removed, or in a space within a sandwich type construction that cannot be inerted; 6. Combustible materials a4acent to the opposite sides of bulkheads, decks, overheads, metal partitions, or sandwich -type construction may be ignited by conduction or radiation; 7. The hot work is close enough to cause ignition through heat radiation or conduction on the following: a. Insulated pipes, bulkheads, decks, partitions, or overheads; or b. Combustible materials and/or coatings; c. The work is close enough to unprotected combustible pipe or cable runs to cause ignition. Fire Watch Equipment One or more 2A40BC extinguishers must be kept at the location of the hot work. These cannot be taken from engineering spaces and the galley or other hazardous material location to use for hot work. A V hose must also be laid out and charged, and must reach all areas inthe compartment.