Wash. Admin. Code § 296-870-70085 - Suspension wire ropes and rope connections
(1) You must make sure each
specific installation uses suspension wire ropes and connections or
combination cable and connections meeting the specifications
recommended by the hoisting machine manufacturer.
(2) You must make sure connections
are capable of developing at least eighty percent of the rated
breaking strength of the wire rope.
(3) You must make sure each
suspension rope has a design factor of at least ten.
(4) You must make sure the minimum
grade of suspension wire rope used is improved plow steel or
equivalent.
(5) You must
make sure suspension wire ropes are sized to conform with the
required design factor, but never less than 5/16 inch (7.94 mm) in
diameter.
(6) You must
make sure there is not more than one reverse bend in six wire rope
lays.
(7) You must make
sure a suspension wire rope that is to be used at a specific
location, and will remain at that location, has a corrosion-resistant
tag that:
(a) Is securely attached
to one of the wire rope fastenings;
and
(b) Bears the following wire rope
information:
(i) Diameter in inches
or millimeters (mm);
(ii)
Construction classification;
(iii) Whether nonpreformed or
preformed;
(iv) Grade of
material;
(v)
Manufacturer's rated strength;
(vi) Manufacturer's name;
(vii) Month and year the ropes were
installed;
(viii) Name of
the person or company which installed the ropes.
(8) You must
make sure a new tag is installed at each wire rope renewal.
(9) You must make sure when
resocketing the wire rope either:
(a) The original tag is stamped
with the date of resocketing;
or
(b) The original tag Is retained
and a supplemental tag added that shows:
(i) The date of resocketing;
and
(ii) The name of the person or
company that resocketed the rope.
(10) You must make sure winding
drum type hoists contain at least three wraps of the suspension wire
rope on the drum when the suspended unit has reached the lowest
possible point of its vertical travel.
(11) You must make sure traction
drum and sheave type hoists use wire rope long enough to reach the
lowest possible point of vertical travel of the suspended unit, and
an additional length of the wire rope of at least four feet (1.2
m).
(12) You must make
sure suspension wire rope is never lengthened or repaired.
(13) You must make sure babbitted
fastenings are never used with suspension wire
rope.
Notes
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 47.17.060. 06-19-075, § 296-870-70085, filed 9/19/06, effective 1/1/07.
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