WAC 296-24-29401
Wire rope. (1) Safe loads. Whenever
used in connection with work, employment, occupations or uses
to which these standards are applicable, wire rope shall not
be subjected to loads in excess of one-fifth the breaking load
as given in the schedule of the cable manufacturer. Except as
required in standard for material hoists.
(2) Condemned. When cables deteriorate through rust,
wear, broken wires, undue strain or other conditions to the
extent of fifteen percent of their original strength, use of
cables shall be discontinued.
(3) Straps and ribbons. The strap or steel ribbon type
of cable shall not be used in the suspension of scaffolding.
(4) Inspections. There shall be not less than monthly
inspection of all wire rope in use, and all wire rope must be
inspected before put into use.
(5) Fastening. The following methods of fastening and
attaching wire rope shall be adhered to:
(a) Sockets. The end of wire rope to be set into socket
fittings held securely with molten babbitt or zinc (not lead).
The wires of the cable shall be frayed out and each wire bent
toward the outside of socket, so that the end of each wire
projects well into the depth of the socket. This method of
fastening cables should be left in the hands of an experienced workers in this kind of work.
(b) Wrapping. Thimbles spliced into rope and the splice
securely wrapped.
(c) Bolted. Thimbles inserted and held in place by at
least a three bolt clamp or three U-bolt clips. Clamps shall
be of standard size for the sizes of the cable in use.
(d) Lashing. For temporary work, by-passing rope at
least twice around large object such as a post, avoiding sharp
points and carrying the end back several feet and securing it
by clamps, clips or lashing to the cable.
[Statutory Authority: Chapter 49.17 RCW. 94-15-096 (Order
94-07), § 296-24-29401, filed 7/20/94, effective 9/20/94;
Order 76-29, § 296-24-29401, filed 9/30/76; Order 73-5, §
296-24-29401, filed 5/9/73 and Order 73-4, § 296-24-29401,
filed 5/7/73.]