N.Y. Comp. Codes R. & Regs. tit. 12 § 23-5.10

Current through Register Vol. 46, No. 16, April 17, 2024

Section 23-5.10 - Multiple-point suspension scaffolds

(a) Design.

(1) Every multiple-point suspension scaffold, including all its supports and fastenings, shall be designed by a professional engineer licensed to practice in the State of New York. A copy of the typical drawings and all specifications, signed by such professional engineer, shall be kept on the job site available for examination by the commissioner.

(2) Every multiple-point suspension scaffold shall be designed and constructed with a factor of safety in compliance with the Labor Law and this Part (rule), except that wire ropes supporting the platform shall be at least five-sixteenths inch in diameter and capable of supporting at least six times the load intended to be imposed on such scaffold.

(3) Every multiple-point suspension scaffold shall be provided with an approved hoisting machine.

(4) Outrigger beams and platform bearers of multiple-point suspension scaffolds shall be constructed of structural grade metal. A detailed inspection of each such beam or bearer shall be made prior to installation and use and such inspection shall be repeated at intervals of not more than 30 days during scaffold use. Such inspections shall be made by competent designated persons who shall complete and sign a written record of the results of each such inspection. Such written record shall be kept at the job site available for examination by the commissioner.

(5) Platform supports of multiple-point suspension scaffolds shall be designed to provide sufficient headroom for easy passage throughout the lengths of such scaffolds.

(6) Effective means shall be provided to prevent rope supports from slipping off the ends of the outrigger beams.

(b) Installation of multiple-point suspension scaffolds.

(1) Each such scaffold shall be installed in accordance with the required design drawings. Any installation or relocation of a multiple-point suspension scaffold shall be by or under the direct supervision of a competent designated person.

(2) The overhang of outrigger beams on such scaffolds shall at no time exceed that specified on the required design drawings.

(3) Outrigger beams shall be properly anchored and braced to provide rigidity and to prevent sliding or tipping.

(4) Supporting points for outrigger beams shall be level, smooth and of sufficient areas to provide firm seats.

(5) Wire rope connections shall be in compliance with this Part (rule). At least four turns of the wire rope shall remain on the hoisting drum at all times. The foregoing does not apply to traction type hoists.

(6) The hoisting rope of every multiple-point suspension scaffold shall be maintained properly lubricated.

(c) Scaffold platform. The platform of every medium duty multiple-point suspension scaffold shall be at least equivalent in strength to two-inch planking, full size. Such planking shall be laid tight and shall be fastened in place or cleated to prevent dislodgment. Light duty multiple- point suspension scaffolds shall be provided with ladder type platforms constructed in accordance with the schedule listed in Table XII of this Subpart and securely fastened to the hangers by U- bolts or other equivalent means.

(d) Safety railings and screening.

(1) The open side and ends of every multiple-point suspension scaffold shall be provided with a safety railing constructed and installed in compliance with this Part (rule). In addition, every such safety railing shall be provided with an enclosure of wire mesh installed from the toeboard to the top railing. Such wire mesh shall be not less than No. 18 U.S. gage steel with openings that will reject a one-inch diameter ball.

(2) The inboard side (side next to the building or other structure) of every multiple-point suspension scaffold shall be provided with a toeboard.

(e) Overhead protection. Where there is a hazard from falling objects or materials, multiple-point suspension scaffolds shall be provided with overhead protection in compliance with this Part (rule).

(f) Scaffold dismantling. When a multiple-point suspension scaffold is being dismantled and the scaffold platform is not lowered intact to the ground or other safe surface, each person performing such dismantling shall be provided with and shall use an approved safety belt or harness together with a lifeline in compliance with this Part (rule).

N.Y. Comp. Codes R. & Regs. Tit. 12 § 23-5.10