WAC 296-24-68215   Public exhibitions and demonstrations.  (1) Installation requirements. Installation and operation of welding, cutting, and related equipment shall be done by, or under the supervision of, a competent operator to insure the personal protection of viewers and demonstrators as well as the protection from fire, of materials in and around the site and the building itself.

     (2) Procedures.

     (a) Cylinders containing compressed gases for use at the site shall not be charged in excess of one-half their maximum permissible content. (Cylinders of nonliquefied gases and acetylene shall be charged to not more than one-half their maximum permissible charged pressure in p.s.i.g. Cylinders of liquefied gases shall be charged to not more than one-half the maximum permissible capacity in pounds.)

     (b) Cylinders located at the site shall be connected for use except that enough additional cylinders may be stored at the site to furnish approximately 1 day's consumption of each gas used. Other cylinders shall be stored, in an approved storage area, preferably outdoors, but this storage area shall not be located near a building exit.

     (c) Cylinders in excess of 40 pounds total weight being transported to or from the site shall be carried on a hand or motorized truck.

     (d) The site shall be constructed, equipped, and operated in such a manner that the demonstration will be carried out so as to minimize the possibility of injury to viewers.

     (e) Sites involving the use of compressed gases shall be located so as not to interfere with the egress of people during an emergency.

     (f) The fire department shall be notified in advance of such use of the site.

     (g) Each site shall be provided with a portable fire extinguisher of appropriate size and type and with a pail of water.

Note:

For additional requirements relating to portable fire extinguishers see WAC 296-800-300.

     (h) The public and combustible materials at the site shall be protected from flames, sparks, and molten metal.

     (i) Hoses shall be located and protected so that they will not be physically damaged.

     (j) Cylinder valves shall be closed when equipment is unattended.

     (k) Where caps are provided for valve protection, such caps shall be in place except when the cylinders are in service or connected ready for service.

     (l) Cylinders shall be located or secured so that they cannot be knocked over.



[Statutory Authority: RCW 49.17.010, [49.17].040, and[49.17].050 . 01-17-033, § 296-24-68215, filed 8/8/01, effective 9/1/01; Order 73-5, § 296-24-68215, filed 5/9/73 and Order 73-4, § 296-24-68215, filed 5/7/73.]