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/ Product Catalogue / Linear fitting to the lines of electric transmission / Clamp bolt tensioning
Clamp bolt tensioning
Tension fittings include tension clamps of various kinds, which are used to fix the wires and cables to the tension-tension pendants corner supports.
Clamps the load of tension wires (cables) in normal mode when exposed to wind and ice.
Clamps, seeing loads of tension wires and cables must provide strength sealing wires (cables) is not less than 90% of the theoretical strength of the wires (cables) on the break. And also to ensure a reliable electrical connection. Relative resistance electrical contact to the terminals where the wire (rope) is cut, should not exceed one.
Depending on the design and method of mounting tension clamps are divided into wedge, bolt, wedge, compressible, fang.
CLAMP BOLT TENSIONING
Types of flaps are bolted for aluminum, steel-aluminum and copper conductors from 70 to 300 mm2.
| Clamp NB-1 |
|
Clamp NB-2-40/А-120 |
 |
|
 |
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Clamp type
|
Failure load, kN,
not less
|
Weight, кg
|
|
NB-1
|
40
|
0,5
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Flaps type NB-1 are designed for mounting and holding the taut wire and ground wire of overhead transmission lines.
|
|
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Clamp type
|
Failure load, kN,
not less
|
Weight, кg
|
|
NB-2-40/А-120
|
40
|
0,67
|
NB-2-40/A-120 flaps designed for mounting wires and cables 7-13,5 mm diameter to tension-tension pendants corner supports.
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|
|
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| Clamp NB-2-6 |
|
Clamp NB-3-6B |
 |
|
 |
|
|
|
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Failure load, kN,
not less
|
Weight, кg
|
|
NB-2-6
|
А95
|
11,7
|
57
|
1,85
|
|
А120
|
11,7
|
|
А150
|
20,5
|
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М85
|
31,5
|
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М120
|
39,2
|
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АS70/11
|
21,2
|
|
АS95/16
|
29,2
|
|
АS120/19
|
37,4
|
|
АS120/27
|
44,5
|
|
АS150/19
|
41,7
|
|
АS150/24
|
47
|
Designed for terminating wires and mounting the chain to secure their tension insulator strings on angle-tension electricity LEP and ORU.
|
|
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Clamp type
|
|
|
Failure load, kN,
not less
|
Weight, кg
|
|
NB-3-6B
|
А150
|
20,5
|
88,2
|
4,70
|
|
А185
|
25,3
|
|
А240
|
33
|
|
А300
|
39,8
|
|
М150
|
47,1
|
|
М185
|
61,4
|
|
М240
|
78,6
|
|
АS150/19
|
41,7
|
|
АS150/24
|
47
|
|
АS150/34
|
56,4
|
|
АS85/24
|
50,4
|
|
АS185/29
|
53,7
|
|
АS185/43
|
70
|
|
АS205/27
|
55,5
|
|
АS240/32
|
65,4
|
|
АS240/39
|
70,7
|
Flaps NB-3-6B for aluminum wire comes with an aluminum seal, packed along the groove clamp body. For copper wires used pads of soft copper. For wires A150-A300 clip NB-3-6B comes eye U1-12-16.
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| Clamp NB-2-6А |
|
Clamp NZ-2-7 |
 |
|
 |
|
Clamp type
|
Mark wire
GOST 839-80
|
Punch-down
strength, kN
|
Failure load, kN,
not less
|
Weight, кg
|
|
NB-2-6А
|
А95
|
13,2
|
57
|
1,10
|
|
А120
|
17,7
|
|
А150
|
21,7
|
|
М95
|
33,9
|
|
М120
|
38,7
|
|
АS70/11
|
21,7
|
|
АS95/16
|
30,0
|
|
АS120/19
|
37,4
|
Tension clamp bolt is designed for aluminum, steel-aluminum and copper wires from 70 to 120 mm2 to the tension-tension pendants corner supports.
|
|
|
|
|
|
Failure load, kN,
not less
|
Weight, кg
|
|
NZ-2-7
|
А120
|
17,7
|
57
|
1,67
|
|
А150
|
20,5
|
|
М120
|
39,2
|
|
АS70/11
|
21,1
|
|
АS95/16
|
29,2
|
|
АS120/19
|
37,4
|
|
АS120/27
|
44,5
|
|
АS150/19
|
41,7
|
|
АS150/24
|
47,0
|
Flaps jammed NZ-2-7 is designed for aluminum, steel-aluminum and copper conductors 70-150 mm2 suspensions tension-tension corner supports.
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