Inspector: competent person
Target: any wire rope likely to be used during shift
Critical review items:
(1) rotation resistant wire rope in use
(2) wire rope used for boom hoists and luffing hoists
(3) wire rope at flange points, crossover points and repetitive pickup points on drums
(4) wire rope at or near terminal ends
(5) wire rope in contact with saddles, equalizer sheaves or other sheaves where rope travel is limited
Category I deficiencies:
(1) significant distortion of wire rope structure (kinking, crushing, unstranding, birdcaging, core protrusion, etc)
(2) significant corrosion
(3) electric arc damage (other than contact with power line)
(4) heat damage
(5) improperly applied end connections
(6) significant corrosion or damage (cracks, bend, wear) of end connections
Category II deficiencies:
(1) visible broken wires
(1a) running wire rope with >= 6 randomly distributed broken wires in one rope lay
(1b) running wire rope with >= 3 broken wires in one strand in one rope lay
(1c) rotation resistant rope with >= 2 randomly distributed broken wires in 6 rope diameters
(1d) rotation resistant rope with >= 4 randomly distributed broken wires in 30 rope diameters
(1e) pendant or standing wire rope with >= 3 broken wires in one rope lay located in rope beyond end connections
(1f) pendant or standing wire rope with >=2 broken wire in a rope lay located at an end connection
(2) diameter reduction > 5% from nominal diameter (actual diameter < 95% nominal diameter)
where:
• One rope lay is the length along the rope in which one strand makes a complete revolution around the rope.
Category III deficiencies:
(1) core failure (core protrusion, etc) in a rotation resistant wire rope
(2) electrical contact with a power line
(3) broken strand
