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 296-155-55805 - Wire rope slings

Current through Register Vol. 24-14, July 15, 2024
(1)
				Manufacturing wire rope slings.
(a) Wire rope
				slings must be made from new or unused regular lay wire rope. The wire rope
				must be manufactured and tested in accordance with ASTM A 1023-02 and ASTM A
				586.
(b) The following fabrication
				methods must be used to make wire rope slings:
(i) Hand splicing;
(ii) Turnback eye;
(iii) Return loop;
(iv) Flemish eye mechanical
				splicing;
(v) Poured or swaged
				socketing.
(c) Wire rope
				slings must have a design factor of 5.
(d) Wire rope slings must meet the
				requirements in Table 16.
(e) Using
				any of the following when making wire rope slings is prohibited:
(i) Rotation resistant wire rope;
(ii) Malleable cast iron clips;
(iii) Knots;
(iv) Wire rope clips, unless:
* The application of the sling prevents using prefabricated
				  slings;
* The specific application is designed by a qualified
				  person.
(f) You
				must install and maintain wire rope clips, if used, in accordance with the
				recommendations of the clip manufacturer or a qualified person, or in
				accordance with the provisions of ASME B30.26-2010.
(g) You must not use slings made with wire
				rope clips as a choker hitch.
Note:
If using wire rope clips under these
						  conditions, follow the guidance given in Table 15.
Table 15
Number, Torque Values, and Turn Back
						  Requirements for U-Bolt Wire Rope Clips
Number, Torque Values and Turn Back
						  Requirements for Double Saddle (Fist Grip) Wire Rope Clips
Clip & Wire Rope Size
						  (inches)
Min. No. of Clips
Amount of Rope Tu r n Back in
						  Inches
*Torque in Ft. Lbs.
Clip & Wire Rope Size
						  (inches)
Min. No. of Clips
Amount of
Rope
						  Turn
Back in
Inches
*Torque in Ft. Lbs.
1/8
2
3-1/4
4.5
3/16-1/4
2
4
30
3/16
2
3-3/4
7.5
5/16
2
5
30
1/4
2
4-3/4
15
3/8
2
5-1/4
45
5/16
2
5-1/4
30
7/16
2
6-1/2
65
3/8
2
6-1/2
45
1/2
3
11
65
7/16
2
7
65
9/16
3
12-3/4
130
1/2
3
11-1/2
65
5/8
3
13-1/2
130
9/16
3
12
95
3/4
4
16
225
5/8
3
12
95
7/8
4
26
225
3/4
4
18
130
1
5
37
225
7/8
4
19
225
1-1/8
5
41
360
1
5
26
225
1-1/4
6
55
360
1-1/8
6
34
225
1-3/8
6
62
500
1-1/4
7
44
360
1-1/2
7
78
500
1-3/8
7
44
360
1-1/2
8
54
360
1-5/8
8
58
430
1-3/4
8
61
590
2
8
71
750
2-1/4
8
73
750
2-1/2
9
84
750
2-3/4
10
100
750
3
10
106
1200
3-1/2
12
149
1200
*The tightening torque values shown are based upon the
				  threads being clean, dry, and free of lubrication.
Table 16 Wire Rope Sling Configuration
				  Requirements
If you have:
Then you need:
* Slings made of rope with 6x19 and 6x36
							 classification.
* Cable laid slings.
A minimum clear length of rope 10 times the rope
							 diameter between splices, sleeves, or end fittings (see Figure 15, Minimum
							 Sling Length) unless approved by a qualified person.
* Braided slings.
A minimum clear length of rope 40 times the component
							 rope diameter between the loops or end fittings (see Figure 16, Minimum Braided
							 Sling Length) unless approved by a qualified person.
* Grommets and endless slings.
A minimum circumferential length of 96 times the body
							 diameter of the grommet or endless sling unless approved by a qualified
							 person.
* Other configurations.
Specific limitation data provided by a qualified
							 person. These slings must meet all other requirements of ASME
							 B30.9-2010.
Click
				  here to view image
Figure 15
Minimum Sling Length
For rope with 6x19 and 6x36
				  classification
or Cable Laid Slings
Click
				  here to view image
Figure 16 Minimum Braided Sling Length