Current through Register Vol. 47, No. 12, March 26, 2025
(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).