California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 4 - Construction Safety Orders › Article 23 - Suspended Scaffolds › Section 1658 - Suspended Scaffolds-General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Hoisting machines or winches that are a
					 part of a suspended scaffold, and are used in raising or lowering that
					 scaffold, shall be approved.
(b)
					 All scaffolds shall be fastened or hung so as to avoid swaying from the
					 building or structure. Window cleaners' anchors shall not be used for this
					 purpose. Supporting cables shall be vertical for their entire length, unless
					 otherwise designed by a currently registered civil engineer in California. The
					 baskets of single-unit, power-driven suspended scaffolds shall not be swayed
					 nor shall support cables be fixed to intermediate points to change the original
					 paths of travel.
(c) Design. All
					 scaffold members, including related parts and rigging, shall be of adequate
					 strength to support intended loads to which they will be subjected, without
					 exceeding stresses established by factors of safety specified in these Orders;
					 or if no safety factors are given, those generally accepted by the engineering
					 profession.
(d) Ladders shall not
					 be used as scaffold platforms, even if a horizontal working surface has been
					 placed over the rungs. Other Orders in this Article call for the use of stage
					 ladders, planking, or specially designed platforms for such service.
(e) Supporting Ropes. Ropes supporting
					 scaffolds shall have a factor of safety of at least 6. They shall be inspected
					 on each job before being used to determine if they are unsafe because of
					 damage, wear, chemical action or similar defects. The use of repaired wire rope
					 as suspension rope is prohibited.
(f) Manila, or other fiber or synthetic ropes
					 shall not be used to support scaffolds upon which workers are using welding or
					 burning equipment of any type, sandblasting equipment, or any chemical
					 substance which may damage the rope by chemical action if splashed or spilled
					 on the rope. Wire rope is required for the above uses. Further, the wire shall
					 be protected against burning or a welding arc to a height of 8 feet above the
					 platform with a rubber hose or equivalent protection.
(g) Inspection. Suspended scaffolds that are
					 in service shall be inspected by a qualified person daily and tested as
					 frequently as is necessary in order to provide proper maintenance. Special
					 attention shall be given to ropes and other rigging.
(h) Suspended scaffolds shall be hung so as
					 to avoid overlap or possible interference with movement from a scaffold above
					 or below.
(i) When suspended
					 scaffolds are supported by a second wire rope, employees shall fasten their
					 lanyards to the work platform trolley line or droplines hanging from secure
					 overhead anchorages between each pair of hangers or falls. One line shall be
					 provided for each employee. It shall be a continuous rope in good condition and
					 free of imperfections, serious wear, or fraying.
(j) Outrigger beams used as supports for
					 suspended scaffold shall be tied back or secured in place and placed in saddles
					 or otherwise positively secured against the possibility of turning or twisting.
					 The attachments on these beams for support of suspended loads shall consist of
					 well-anchored L-hooks fitted with ½ inch shackle bolts, or equivalent.
					 See Plate B-24, Appendix.
(1) The outrigger
					 beams and supporting system shall be capable of safely sustaining 4 times the
					 rated load of the platform or hoist whichever is greater.
(2) When a counterweight system is used, the
					 counterweights shall consist of solid materials such as steel or concrete (See
					 Plate B-39, Appendix) and the tiebacks shall be at least equivalent in strength
					 to the suspension ropes and anchored securely.