N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-6.6

Current through Register Vol. 46, No. 50, December 11, 2024

Section 4-6.6 - Working platforms and ladders-boilers installed after march 31, 1965

(a) Working platform requirements. Any working platform required by this section shall be not less than 24 inches wide, constructed of metal with a four-inch metal toeboard, and have railings not less than 42 inches high with a midrail. Such railings shall be constructed of not less than 11/4 inch diameter pipe.

(b) Ladders and stairs. Any ladder required by this section shall be of substantial construction of metal, and be at least 18 inches wide between side rails. Any stairs required by this section shall be of metal not less than 24 inches wide, with a metal railing not less than 42 inches high with a midrail. Such railing shall be constructed of not less than 11/4 inch diameter pipe.

(c) Access to boiler top. Where the distance from the floor to the top of a boiler or boiler setting exceeds eight feet, a permanent stairway or inclined ladder shall be provided to give safe access to and permit exit from the boiler top. Where more than two boilers are operated in battery, two remote means of exit from the boiler tops shall be provided, one of which may be a vertical ladder.

(d) Access to valves. Where a main stop valve, a safety valve or a relief valve is located on top of a boiler, a permanent working platform shall be installed to provide access unless the top of the boiler setting is flat and provides an unobstructed walkway not less than 24 inches wide to the valve. Where a main stop valve is located remote from the boiler top and more than six feet above the floor or nearest walkway, a permanent working platform shall be installed.

(e) Access to water column. Where the low point of a water column is located 10 feet or more above the floor or nearest walkway, a working platform shall be installed to provide access to the water column. A permanent ladder or stair need not be provided.

(f) Access to drum of water tube boiler. Where the bottom of the drum of a water tube type boiler is located four feet or more above the floor or nearest walkway, a working platform shall be installed at one end to permit safe access to the drum interior for cleanout and inspection. A permanent ladder or stair need not be provided.

(g) Access to cleanout openings. Where the bottom of cleanout openings on the side walls of a boiler setting are located four feet or more above the floor or nearest walkway, a working platform shall be installed to provide access. A permanent ladder or stair need not be provided.

N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-6.6