Australian Capital Territory Current Regulations Australian Capital Territory Current RegulationsGeneral
(1) Reverse bends that are detrimental to the life of a running rope shall be avoided if practicable.
(2) Suitable packing shall be provided and used to prevent wire rope coming in contact with sharp edges of loads or hard material.
(3) Steel wire rope shall not be exposed to temperatures exceeding 200° Fahrenheit.
(4) Steel wire rope of circumference less than 5 / 8 of an inch shall not be used for load carrying purposes unless otherwise approved.
(5) Kinked ropes shall not be used.
(6) Ropes shall be stored under cover in a clean, dry place and be raised clear of the ground.
(7) In no case shall the rope be in contact with ashes, clinker or coke.
(8) The ropes in store shall be examined periodically and the protective coating renewed when required.
(9) When a load is supported on more than 1 fall, single or part of rope, the load shall be distributed equally by statically determinate automatic means between the various falls, singles or parts.
(10) No rope shall be used for load carrying purposes that has been subjected to a severe shock or that has been unduly stretched.
(11) No rope sling shall be used if the included angle measured between any 2 legs exceeds 150° or if the angle formed between any sling leg and the line of action of the pull exceeds 75°.
(12) Rope slings before being used, and if repaired or altered before being reused, shall be subjected to a load equal to their safe working load and closely examined about suitability for use or reuse as the case may be.
(13) Ropes having less than 6 strands, or having any strand containing less than 19 wires shall not be wound on drums or over or on sheaves, rollers, or quadrants, or used in any way as running ropes.
(14) Screw threads used in conjunction with wire ropes shall be prevented by positive means from unscrewing.
(15) If rope is used to support workers, it shall not be less than 1 1 / 8 inches circumference and 3 / 8 of an inch diameter—if hand operated, or 1 5 / 8 inches circumference and 1 / 2 an inch diameter—if power operated.
(16) Every steel wire rope and every part of it shall be of sound material, good construction, adequate strength, free from patent defects, and be suitable and safe for the purpose for which it is intended.
(17) Rope of lang lay shall not be used unless the ends are fixed to prevent unlaying of the rope.
Design, construction, use and safe working load
(18) All steel wire rope shall comply with the provisions of Australian Standard Specification No B.9-1938, promulgated by Standards Australia.
(19) However—
(a) every steel wire ropes shall be classified numerically in conformity with table 144.1; and
(b) in the event of uncertainty or dispute the classification may be determined by the chief inspector; and
(c) no wire rope shall be subjected to any greater load than that shown in table 144.1 as relevant and appropriate to its circumference, construction, and classification, or way of use, provided that—
(i) if it is of a grade of steel of greater or lesser minimum ultimate tensile value than 80 tons per square inch—the tabulated load shall be increased or decreased in the ratio:
; and
(ii) if the rope is used solely as a static guy rope—the tabulated load may be increased by 50%; and
(iii) if the rope comprises the main cable of a cableway—a further increase in load may be approved by the chief inspector; and
(d) no steel wire rope shall be used if of other design or other material than provided in the British Standard Specifications promulgated by the British Standards Institution, England, or Australian Standard Specification No B9—1938 promulgated by Standards Australia, without first being approved.
Table 144.1 Classification of steel wire rope for purposes of design, construction and use
|
classification of crane, hoist, lift, plant, or scaffolding in connection with which the steel wire rope is used |
ropes used for other purposes | |
| 1 | classifications Nos 1, 2 and 3 |
building, excavation or compressed air work |
| 2 | classification No 4 |
|
Maximum safe working load for steel wire rope—Classification 1
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 12 wires
|
safe load for 2-leg sling arranged as indicated |
|---|
|
circum- |
approx. |
safe load for 1 single fall (part) of rope |
|
|
|
|
| ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
inches |
inches |
tons |
cwts |
tons |
cwts |
tons |
cwts |
tons |
cwts |
tons |
cwts |
tons |
cwts |
|
5 /8 |
3 /16 |
0 |
2 1 /2 |
0 |
5 |
0 |
4 |
0 |
3 1 /2 |
0 |
2 1 /2 |
0 |
1 1 /2 |
|
3 /4 |
1 /4 |
0 |
3 1 /2 |
0 |
7 |
0 |
6 |
0 |
5 |
0 |
3 1 /2 |
0 |
2 |
|
7 /8 |
9 /32 |
0 |
4 1 /2 |
0 |
9 |
0 |
8 |
0 |
6 1 /2 |
0 |
4 1 /2 |
0 |
2 1 /2 |
|
1 |
5 /16 |
0 |
6 |
0 |
12 |
0 |
10 |
0 |
8 1 /2 |
0 |
6 |
0 |
3 |
|
1 1 /8 |
3 /8 |
0 |
8 |
0 |
15 |
0 |
13 |
0 |
11 |
0 |
8 |
0 |
4 |
|
1 1 / 4 |
13 / 32 |
0 |
10 |
0 |
19 |
0 |
17 |
0 |
14 |
0 |
10 |
0 |
5 |
|
1 3 / 8 |
7 / 16 |
0 |
11 |
1 |
1 |
0 |
19 |
0 |
16 |
0 |
11 |
0 |
6 |
|
1 1 / 2 |
15 / 32 |
0 |
14 |
1 |
7 |
1 |
4 |
1 |
0 |
0 |
14 |
0 |
7 |
|
1 5 / 8 |
1 / 2 |
0 |
17 |
1 |
13 |
1 |
9 |
1 |
4 |
0 |
17 |
0 |
9 |
|
1 3 / 4 |
9 / 16 |
0 |
19 |
1 |
17 |
1 |
13 |
1 |
7 |
0 |
19 |
0 |
10 |
|
1 7 / 8 |
19 / 32 |
1 |
2 |
2 |
2 |
1 |
18 |
1 |
11 |
1 |
2 |
0 |
11 |
|
2 |
5 / 8 |
1 |
5 |
2 |
8 |
2 |
3 |
1 |
15 |
1 |
5 |
0 |
13 |
|
2 1 / 8 |
11 / 16 |
1 |
8 |
2 |
14 |
2 |
8 |
2 |
0 |
1 |
8 |
0 |
15 |
|
2 1 / 4 |
23 / 32 |
1 |
12 |
3 |
2 |
2 |
15 |
2 |
5 |
1 |
12 |
0 |
17 |
|
2 3 / 8 |
3 / 4 |
1 | colspan ="1" rowspan="1" valign="top">
16 |
3 |
10 |
3 |
2 |
2 |
11 |
1 |
16 |
0 |
19 |
|
2 1 / 2 |
13 / 16 |
1 |
19 |
3 |
15 |
3 |
8 |
2 |
15 |
1 |
19 |
1 |
0 |
Maximum safe working load for steel wire rope—Classification 2
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 12 wires
|
safe load for 2-leg sling arranged as indicated |
|---|
|
circum- |
approx. |
safe load for 1 single fall (part) of rope |
|
|
|
|
|
|---|
Maximum safe working load for steel wire rope—Classification 1
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: Six strands each containing nineteen wires
|
safe load for 2-leg sling arranged as indicated |
|---|
|
circum- |
approx. |
safe load for 1 single fall (part) of rope |
|
|
|
|
|
|---|
|
inches |
inches |
tons |
cwts |
tons |
cwts |
tons |
cwts |
tons |
cwts |
tons |
cwts |
tons |
cwts |
|---|
Maximum safe working load for steel wire rope—Classification 2
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 19 wires
Maximum safe working load for steel wire rope—Classification 1
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 24 wires
Maximum safe working load for steel wire rope—Classification 2
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 24 wires
|
5 /8 |
3 /16 |
0 |
2 1 /2 |
0 |
5 |
0 |
4 1 /2 |
0 |
3 1 /2 |
0 |
2 1 /2 |
0 |
1 1 /2 |
|
3 /4 |
1 /4 |
0 |
4 |
0 |
7 1 /2 |
0 |
7 |
0 |
5 1 /2 |
0 |
4 |
0 |
2 |
|
7 /8 |
9 /32 |
0 |
5 |
0 |
9 1 /2 |
0 |
8 1 /2 |
0 |
7 |
0 |
5 |
0 |
2 1 /2 |
|
1 |
5 /16 |
0 |
7 |
0 |
13 1 /2 |
0 |
12 |
0 |
10 |
0 |
7 |
0 |
3 1 /2 |
|
1 /8 1 |
3 /8 |
0 |
9 1 /2 |
0 |
18 1 /2 |
0 |
16 1 /2 |
0 |
13 1 /2 |
0 |
9 1 /2 |
0 |
5 |
|
1 1 /4 |
13 /32 |
0 |
11 |
1 |
1 |
0 |
19 |
0 |
15 1 /2 |
0 |
11 |
0 |
5 1 /2 |
|
3 /8 1 |
7 /16 |
0 |
13 1 /2 |
1 |
6 |
1 |
3 |
0 |
19 |
0 |
13 1 /2 |
0 |
7 |
|
1 1 /2 |
15 /32 |
0 |
16 |
1 |
11 |
1 |
8 |
1 |
3 |
0 |
16 |
0 |
8 |
|
5 /8 1 |
1 /2 |
0 |
19 |
1 |
17 |
1 |
13 |
1 |
7 |
0 |
19 |
0 |
10 |
|
1 3 /4 |
9 /16 |
1 |
1 |
2 |
1 |
1 |
center "> 16 |
1 |
10 |
1 |
1 |
0 |
11 |
|
7 /8 1 |
19 /32 |
1 |
5 |
2 |
8 |
2 |
3 |
1 |
15 |
1 |
5 |
0 |
13 |
|
2 |
5 /8 |
1 |
9 |
2 |
16 |
2 |
10 |
2 |
1 |
1 |
9 |
0 |
15 |
|
2 1 /8 |
11 /16 |
1 |
12 |
3 |
2 |
2 |
15 |
2 |
5 |
1 |
12 |
0 |
16 1 /2 |
|
2 1 /4 |
23 /32 |
1 |
16 |
3 |
10 |
3 |
2 |
2 |
11 |
1 |
16 |
0 |
18 1 /2 |
|
2 3 /8 |
3 /4 |
2 |
0 |
3 |
17 |
3 |
9 |
2 |
17 |
2 |
0 |
1 |
1 |
|
2 1 /2 |
13 /16 |
2 |
6 |
4 |
9 |
4 |
0 |
3 |
5 |
2 |
6 |
1 |
4 |
|
2 3 /4 |
7 /8 |
2 |
14 |
5 |
4 |
4 |
14 |
3 |
16 |
2 |
14 |
1 |
8 |
|
3 |
15 / 16 |
3 |
3 |
6 |
2 |
5 |
9 |
4 |
9 |
3 |
3 |
1 |
13 |
|
3 1 / 4 |
1 1 / 16 |
3 |
17 |
7 |
9 |
6 |
13 |
5 |
9 |
3 |
17 |
2 |
0 |
|
3 1 / 2 |
1 1 / 8 |
4 |
8 |
8 |
10 |
7 |
13 |
6 |
4 |
4 |
8 |
2 |
6 |
|
3 3 / 4 |
1 3 / 16 |
5 |
0 |
9 |
13 |
8 |
13 |
7 |
1 |
5 |
0 |
2 |
12 |
|
4 |
1 1 / 4 |
5 |
15 |
11 |
2 |
9 |
19 |
8 |
3 |
5 |
15 |
3 |
0 |
|
4 1 / 4 |
1 3 / 8 |
6 |
9 |
12 |
9 |
11 |
4 |
9 |
3 |
6 |
9 |
3 |
7 |
|
4 1 / 2 |
1 7 / 16 |
7 |
3 |
13 |
16 |
12 |
8 |
10 |
2 |
7 |
3 |
3 |
14 |
|
4 3 / 4 |
1 1 / 2 |
8 |
3 |
15 |
15 |
14 |
2 |
11 |
10 |
8 |
3 |
4 |
5 |
|
5 |
1 5 / 8 |
8 |
19 |
17 |
6 |
15 |
10 |
12 |
13 |
8 |
19 |
4 |
13 |
|
5 1 / 4 |
1 11 / 16 |
9 |
15 |
18 |
17 |
16 |
18 |
13 |
16 |
9 |
15 |
5 |
1 |
|
5 1 / 2 |
1 3 / 4 |
10 |
12 |
20 |
10 |
18 |
7 |
15 |
0 |
10 |
12 |
5 |
11 |
|
5 3 / 4 |
1 13 / 16 |
11 |
16 |
22 |
16 |
20 |
9 |
16 |
14 |
11 |
16 |
6 |
2 |
|
6 |
1 7 / 8 |
12 |
15 | colspan ="1" rowspan="1" valign="top">
24 |
12 |
22 |
2 |
18 |
1 |
12 |
15 |
6 |
12 |
Maximum safe working load for steel wire rope—Classification 1
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 37 wires
Maximum safe working load for steel wire rope—Classification 2
Minimum ultimate tensile value of steel of which rope is constructed = 80 tons
per square
inch
construction: 6 strands each containing 37 wires
Ratio of drum (barrel) or sheave diameter to rope
(20) When power operated and for rope speeds not greater than 120 feet per minute, the diameter of a drum (barrel) roller, sheave or quadrant measured at the surface on which the rope operates (where ungrooved) or at the bottom of the groove (where grooved) shall be not less than that provided in table 144.2 as relevant and appropriate to the construction of the rope concerned.
(21) For each increase in rope speed of 60 feet per minute, above 120 feet per minute, 7 1 / 2 % shall be added to the diameter of the drum, barrel, roller, sheave or quadrant.
(22) The ratio of drum, barrel, roller, sheave or quadrant diameter to rope diameter when hand operated shall be not less than 10, when measured at the surface on which the rope operates.
Table 144.2
|
rope construction | | ||
|---|---|---|---|
|
number of wires in each strand |
note |
minimum diameter of drum,
| |
| 4 |
| ||
23d.
6
6
6
6
19d.
6
6
37
16 1 / 2 d.
6
61
15 1 / 2 d.
6
10
flattened strand
33d.
6
25
flattened strand
27d.
6
27
flattened strand
25d.
8
19
flattened strand
17 1 / 2 d.
17
7
non-spin
20d.
34
7
non-spin
16 1 / 2 d.
Equalising sheaves
(23) Equalising sheaves and analogous media shall have diameters at the bottoms of the grooves not less than 15 times the diameter of the ropes concerned.
Angle of lead of rope to and from drums or sheaves—for grooved drums or sheaves
(24) The maximum lead angle shall be such that there is no danger of the rope being drawn out of its bed in the groove and shall not exceed 5° (1 in 12) each side of a plane perpendicular to the axis of rotation of the drum or sheave.
Angle of lead of rope to and from drums or sheaves—for ungrooved drums
(25) The maximum lead angle shall be such that there is no danger of the rope ‘bunching' on the drum and failing to lay correctly on it, and shall not exceed 3° (1 in 19) each side of a plane perpendicular to the axis of rotation of the drum.
Grooving of drums
(26) If drums are grooved the grooves shall be machined and the contour at the bottom of the grooves shall be circular over an angle of 120°.
(27) The radius of the grooves shall be as shown in table 144.3.
Table 144.3 Radius of grooves in rope drums
for ropes up to and including 2 inches circumference | radius of rope plus 1 / 32 of an inch |
| for ropes of 2 1 / 8 to 2 3 / 4 inches circumference inclusive | radius of rope plus 3 / 64 of an inch |
| for ropes of 3 to 3 1 / 2 inches circumference inclusive | radius of rope plus 1 / 16 of an inch |
| for ropes of 3 3 / 4 inches circumference and larger |
radius of rope plus 3 / 32 of an inch |
(28) Grooves shall have a depth of not less than 1 / 3 of the diameter of the rope and shall be so pitched that there is a clearance of not less than 1 / 32 of an inch for ropes up to 1 1 / 2 inches diameter and not less than 1 / 16 of an inch for ropes over 1 1 / 2 inches diameter, between the parts of the rope when coiled on the drum.
(29) The grooves shall be smoothly finished and all sharp edges removed.
Ungrooved drums for rope
(30) Ungrooved drums shall have flanges extending 1 rope diameter above the surface of the outer layer of rope when the maximum designed number of turns are wound on it, but in no case shall the total depth of the flange measured from the face of the empty drum be less than 3 rope diameters.
(31) Subsection (30) shall not imply that an additional flange is to be provided when a wheel that is attached to the drum will serve to form 1 of the flanges.
Rope pulleys and quadrants
(32) Rope pulleys and quadrants shall be machine grooved to a depth not less than 1 1 / 2 times the diameter of the rope used on it and the grooving shall comply with the provisions of subsections (26) to (29).
(33) The included angle of flare between the 2 sides of the grooving of a pulley or quadrant shall be not less than 42° and not more than 52°.
(34) When ropes are prevented from leaving their grooves, the grooves may be not less in depth than the diameter of the rope concerned.
(35) Lifting block pulleys shall be provided with suitable guards to keep the ropes in the grooves.
Swivel hooks
(36) Lifting hooks and lifting eyes attached to single falls (parts) of steel wire rope other than rope slings, shall be freely rotatable under all conditions of loading and if the load exceeds 2 tons shall be of the ball or roller thrust bearing type.
(37) Provision shall be made to exclude dust and other foreign matter from thrust bearings.
Guards
(38) Guards shall be provided to prevent persons' hands or other parts of their body being injured by the rope or pulleys of hook blocks or bottom blocks in power-operated cranes or hoists if the blocks are used for loads of less than 5 tons.
(39) Guards shall be provided if there is a danger that ropes will become displaced from pulleys, or quadrants.
Rope anchorages
(40) Eye splices, sockets, and rope anchorages shall be capable of withstanding 90% of the guaranteed breaking strength of the rope or ropes to which they are attached.
(41) Rope anchorages shall be readily accessible at all times.
(42) There shall be at least 2 full turns of each rope, remaining on the drum or barrel when the hook or other lifting or hauling medium is fully lowered or unwound.
Splicing
(43) Eye splices shall have at least 3 tucks with each whole strand of the rope, and 2 tucks with 1 / 2 of the wires cut out of each strand, made in each case, under and over against the lay of the rope.
(44) The splice shall be tightly drawn and neatly made.
(45) Thimbles shall be used if ropes are spliced to hooks, shackles, rings, swivels, pins, eyes, and analogous fittings.
Periodic inspection of rope
(46) No person shall use any wire rope or any attachments of it unless the rope and the attachments of it have been subjected to close detailed examination at the intervals that are necessary or advisable to ensure that defective ropes or attachments are not used.
(47) No steel wire rope shall be used if it is excessively worn, corroded, or otherwise defective, or if in any length equal to 8 diameters of the rope the number of visible broken wires exceeds 10% of the total number of wires in the rope.
Identification and testing of steel wire rope
(48) No person shall use any steel wire rope unless the person holds a purchaser's docket or other document, issued to the person and signed by the person from whom he or she purchased or obtained the use of the rope, clearly and legibly setting out in the English language the length of rope to which the docket or document applies, the size, construction and lay of the rope, the maker's guaranteed minimum breaking tensile strength of the rope, the maker's identification number of the coil from which the rope was obtained, and the date of purchase or acquisition of the rope.
(49) Every person using any steel wire rope shall when so required by an inspector immediately produce to the inspector, and allow the inspector to examine and copy, the docket or document required by subsection (48) to be held by the person for that rope.
(50) Every person who uses or has in his or her possession for use any steel wire rope shall, if requested by the chief inspector so to do, produce to the chief inspector or to an inspector named in the request, at a reasonable place specified in the request and within a reasonable time not exceeding 4 weeks after the receipt of the request, a test certificate for the rope or of rope of which it formed a part, which certificate shall be in accordance with Australian Standard Specification No M4—1955, appendix K, ‘Steel Wire Ropes for Winding and Hauling Purposes in Mines' of Standards Australia, and the person shall, if necessary for compliance with the request, cause the appropriate test to be made.
(51) Unless the chief inspector directs the production of the original certificate, the production of a true copy of it, if bearing a statement signed by the maker or a vendor of the rope that it is a true copy, shall be a sufficient compliance with the request.
(52) Any person who in any test certificate given for steel wire rope knowingly makes or signs any false statement, or who knowingly makes or signs a false statement that any document is a true copy of the certificate, commits a breach of this regulation.
Fibre rope for use in connection with cranes, lifts, hoists, scaffolding, plant, gear, or building work, excavation work, or compressed air work
