1. (a) In addition to the requirements of NFPA 54, §9.6.2 and NFPA 58 §5.9.6.5 regarding gas hose connectors, agricultural structures, such as greenhouses or broiler houses, or industrial structures not inhabited by humans may have appliance connectors more than six feet in length provided that:

   1. (1) the hose used shall be marked as acceptable for LP-gas service;
   2. (2) the hose shall comply with NFPA 58, §§5.9.6.1 through 5.9.6.4;
   3. (3) the length of the hose used shall be only that which is sufficient to serve the purpose for which it is intended; and
   4. (4) manufactured hose connections, such as quick-connect or threaded fittings, shall be used.
2. (b) Only broiler houses and other types of poultry houses may connect LP-gas piping with stainless steel screw-type banded clamps in lieu of the required manufactured hose connections specified in subsection (a)(4) of this section, provided that the clamps are properly installed and the connections are gas-tight, that the clamps are used in conjunction with hose barb adaptors, and that the system's operating pressure is 6 1/2 ounces or less. Other agricultural structures shall comply with the requirements of subsection (a)(4) of this section.

3. (c) In addition to the requirements in NFPA 54, §7.2.6, the support spacing requirement for 3/4 to one inch pipe shall not apply to agricultural structures not inhabited by humans, such as greenhouses and broiler houses, provided that:

   1. (1) such piping is supported by ceiling trusses no more than ten feet apart; and
   2. (2) pipe joints and fittings are supported by the trusses.

Source Note:The provisions of this §9.311 adopted to be effective February 1, 2001, 26 TexReg 947; amended to be effective September 29, 2003, 28 TexReg 8318; amended to be effective February 1, 2008, 33 TexReg 122.