Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-155 - Safety standards for construction work › Part L - CRANES, RIGGING, AND PERSONNEL LIFTING › Section 296-155-53404 - Wire rope

Current through Register Vol. 24-14, July 15, 2024
(1)
Selection
				and installation criteria.
(a)
				Original crane/derrick wire rope and replacement wire rope must be selected and
				installed in accordance with the requirements of this section. Selection of
				replacement wire rope must be in accordance with the recommendations of the
				wire rope manufacturer, the crane/derrick manufacturer, or a qualified
				person.
(b) Wire rope design
				criteria: Wire rope (other than rotation resistant rope) must comply with
				either Option (1) or Option (2) of this section, as follows:
(i)
Option (1).
Wire rope must
				comply with Section 5-1.7.1 of ASME B30.5-2007 except that section's paragraph
				(c) must not apply.
(ii)
Option (2).
Wire rope must be designed to have, in relation to the
				crane's/derrick's rated capacity, a sufficient minimum breaking force and
				design factor so that compliance with the applicable inspection provisions in
				this section will be an effective means of preventing sudden rope
				failure.
(c) Wire rope
				must be compatible with the safe functioning of the crane/derrick.
(d)
Boom hoist reeving.
(i) Fiber core ropes must not be used for
				boom hoist or luffing attachment reeving, except for derricks.
(ii) Rotation resistant ropes must be used
				for boom hoist reeving only where the requirements of (e) of this subsection
				are met.
(e)
Rotation resistant ropes.
(i)
Definitions.
Type I rotation resistant wire rope (Type I).
Type I rotation resistant rope is stranded rope constructed to have little or
				  no tendency to rotate or, if guided, transmits little or no torque. It has at
				  least 15 outer strands and comprises an assembly of at least 3 layers of
				  strands laid helically over a center in two operations. The direction of lay of
				  the outer strands is opposite to that of the underlying layer.
Type II rotation resistant wire rope (Type II).
Type II rotation resistant rope is stranded rope constructed to have resistance
				  to rotation. It has at least 10 outer strands and comprises an assembly of two
				  or more layers of strands laid helically over a center in two or 3 operations.
				  The direction of lay of the outer strands is opposite to that of the underlying
				  layer.
Type III rotation resistant wire rope (Type
				  III).
Type III rotation resistant rope is stranded rope constructed to
				  have limited resistance to rotation. It has no more than 9 outer strands, and
				  comprises an assembly of two layers of strands laid helically over a center in
				  two operations. The direction of lay of the outer strands is opposite to that
				  of the underlying layer.
(ii)
Requirements.
(A) Types II and III with an operation design
				factor of less than 5 must not be used for duty cycle or repetitive
				lifts.
(B) Rotation resistant ropes
				(including Types I, II and III) must have an operating design factor of no less
				than 3.5.
(C) Type I must have an
				operating design factor of no less than 5, except where the wire rope
				manufacturer and the crane/derrick manufacturer approves the design factor, in
				writing.
(D) Types II and III must
				have an operating design factor of no less than 5, except where the
				requirements of (e)(iii) of this subsection are met.
(iii) When Types II and III with an operation
				design factor of less than 5 are used (for nonduty cycle, nonrepetitive lifts),
				the following requirements must be met for each lifting operation:
(A) A qualified person must inspect the rope
				in accordance with subsection (2)(a) of this section. The rope must be used
				only if the qualified person determines that there are no deficiencies
				constituting a hazard. In making this determination, more than one broken wire
				in any one rope lay must be considered a hazard.
(B) Operations must be conducted in such a
				manner and at such speeds as to minimize dynamic effects.
(C) Each lift made under these provisions
				must be recorded in the monthly and annual inspection documents. Such prior
				uses must be considered by the qualified person in determining whether to use
				the rope again.
(iv)
				Additional requirements for rotation resistant ropes for boom hoist reeving.
(A) Rotation resistant ropes must not be used
				for boom hoist reeving, except where the requirements of (e)(iv)(B) of this
				subsection are met.
(B) Rotation
				resistant ropes may be used as boom hoist reeving when load hoists are used as
				boom hoists for attachments such as luffing attachments or boom and mast
				attachment systems. Under these conditions, all of the following requirements
				must be met:
(I) The drum must provide a
				first layer rope pitch diameter of not less than 18 times the nominal diameter
				of the rope used.
(II) The
				requirements in WAC
				296-155-53400(44)
				(irrespective of the date of manufacture of the crane/derrick), and WAC
				296-155-53400(45).
(III) The requirements of ANSI/ASME
				B30.5-2007, Section 5-1.3.2(a), (a)(2) through (a)(4), (b) and (d), except that
				the minimum pitch diameter for sheaves used in multiple rope reeving is 18
				times the nominal diameter of the rope used instead of the value of 16
				specified in Section 5-1.3.2(d).
(IV) All sheaves used in the boom hoist
				reeving system must have a rope pitch diameter of not less than 18 times the
				nominal diameter of the rope used.
(V) The operating design factor for the boom
				hoist reeving system must be not less than 5.
(VI) The operating design factor for these
				ropes must be the total minimum breaking force of all parts of rope in the
				system divided by the load imposed on the rope system when supporting the
				static weights of the structure and the load within the crane's/derrick's rated
				capacity.
(VII) When provided, a
				power-controlled lowering system must be capable of handling rated capacities
				and speeds as specified by the manufacturer.
(f) Wire rope clips used in
				conjunction with wedge sockets must be attached to the unloaded dead end of the
				rope only, except that the use of devices specifically designed for dead-ending
				rope in a wedge socket is permitted.
(g) Socketing must be done in the manner
				specified by the manufacturer of the wire rope or fitting.
(h) Prior to cutting a wire rope, seizings
				must be placed on each side of the point to be cut. The length and number of
				seizings must be in accordance with the wire rope manufacturer's instructions.