Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-155 - Safety standards for construction work › Part F-1 - RIGGING REQUIREMENTS FOR MATERIAL HANDLING › Section 296-155-33805 - 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 6.
(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) Wire
				rope clips, if used, must be installed and maintained 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 5.
Table 5
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 Turn 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 6 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 4, 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 5,
						  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 4 Minimum Sling Length For rope with 6x19 and
				  6x36 classification or Cable Laid
Slings
Click
				  here to view image