1: Componen illustration (Drawing 1-1)
1) Untwisted ring: As a standard form, be applied to subsize wire. Twisted ring: To large size, use twisted ring to adapt
different tting
2) Installation/identifying color code: Indicate the start point of installation, meanwhile help to identify clamp.
2: Application and structure (Drawing 1-2)
1) Preformed tension set is used in the installation of the exposed conductor used in main and tap distribution line and overhead insulated conductor. It can substitute for the tension clamps including bolt type widely used in present line;
2) The set is simple in structure, two legs of the preformed armor rod intertwist a blank pipe, with a twisted ring as its
backside. The blank pipe would produce a great holding strength when it enlace the conductor, and the ring could be used on the insulator.
3. Material
The tension set is made of galvanized steel wire and aluminum sheathed steel wire.
4. Characteristic
1) High strength; An additional length is provided to ensure tension strength could be up to 100% R.B.S;
2) High erosion resistance: The material is identical to conductor;
3) Simple installation, the tension set could be installed manually at the work site by one person without any special tool;
4) Good installation quality: The tension set installation could be checked by naked eye without specialized training;
5) Strong Universality: It could be widely compatible with many fittings;
6) Adequate holding strength: It is possessed of firm twisted ring, and could provide adequate holding strength for conductors. It also possesses a large applicable conductor range.
5. Matched fittings
Heart-shape ring ( Drawing 1-1) ( Table 1-1)( Drawing 1-2)( Table 1-2)
Main body: Hot galvanized spheroidal graphite iron
Bolt: Hot galvanized steel
Cotter pin: Stainless steel
Cable 1-1 Heart shape ring
Catalogue No. | Reference Identifier | Broken Strength (kN) | Weight(kg) | Dimension(mm) | ||||
A | B | C | D | E | ||||
TC-12 | TC-12 | 120 | 0.9 | 107 | 48 | 24 | 57 | M16 |
TC-16 | TC-16 | 156 | 1.7 | 124 | 57 | 25.4 | 64 | M18 |
TC-16 | TC-16 | 156 | 1.7 | 124 | 57 | 25.4 | 64 | M16 |
Table 1-2 heart shape ring
Catalogue No. | Reference Identifier | Broken Strength (kN) | Weight(kg) | Dimension(mm) | ||||
A | B | C | D | E | ||||
TC-05 | TC-05 | 50 | 0.33 | 60 | 45 | 20 | 40 | Φ16 |
TC-07 | TC-07 | 70 | 0.44 | 60 | 45 | 20 | 42 | Φ16 |
6. Attention
1) Don't lap on the set. Lap on the conductor is allowable;
2) Don't use it on overhead earth wire;
3) After initial installation, don' t use it again;
4) The direction of turning between tension set and conductor should be the same. The standard direction is right. Please consult the company if left is required.
7. Model Table
Table 1-3 preformed insulated wire tension set model table (1)
Catalogue No. | Cable range (mm) | Applicable conductor below 1KV GB 12527-90 | Applicable conductor below 10KV GB 14049-93 Thin insulated | Reference length(mm) | Color code | Optional fitting | |
Min | Max | ||||||
DN-3510 | 5.82 | 6.53 | 10 | 460 | Orange | TC-05 | |
DN-3511 | 6.55 | 7.34 | 16 | 530 | Yellow | ||
DN-3513 | 8.28 | 9.25 | 25 | 690 | Green | ||
DN-3514 | 9.26 | 10.39 | 35 | 690 | Yellow | ||
DN-3515 | 10.40 | 11.68 | 50 | 740 | Blue | ||
DN-3516 | 11.69 | 13.11 | 70 | 25 35 | 790 | Orange | |
DN-3517 | 13.12 | 14.66 | 50 | 860 | Purple | ||
DN-3100 | 14.67 | 16.59 | 95 120 | 70 | 889 | Blue | |
DN-3101 | 16.60 | 18.77 | 150 | 95 | 980 | Red | |
DN-3102 | 18.78 | 21.26 | 185 | 120 150 | 1016 | Brown | TC-07 |
DN-3103 | 21.27 | 24.05 | 240 | 185 | 1016 | Green | TC-12 |
DN-3104 | 24.06 | 27.20 | 240 300 | 1016 | Black |
Table 1-4 preformed insulated wire tension set model table (2)
DL/T763-2001 Standard Type | Cable range (mm) | Applicable conductor below 10KV GB 14049-93 Normal insulated | Reference length(mm) | Color code | Optional fitting | |
Min | Max | |||||
NL-35/JY NL-50/JY | 14.67 | 16.59 | 35 50 | 889 | Blue | TC-05 |
NL-70/JY | 16.60 | 18.77 | 70 | 980 | Red | |
NL-95/JY NL-120/JY | 18.78 | 21.26 | 95 120 | 1016 | Brown | TC-07 |
NL-150/JY | 21.27 | 24.05 | 150 | 1016 | Green | TC-12 |
NL-185/JY NL-240/JY | 24.06 | 27.20 | 185 240 | 1016 | Black | |
NL-300/JY | 27.21 | 30.78 | 300 | 1016 | Purple |
Note: Meaning of letters: N-tension set; L-bolt preformed; after "-" is conductor type; JY-insulated conductor. -03-Optional tting TCis related to rated broken strength of conductor. The option oftensionset is acoording to the actual conductor diameter.
Table 1-5 preformed conductor tension set (used on ACSR) model table
DL/T763-2001 Standard Type | Cable range (mm) | (GB1179-83) Suitable conductor type (LGJ/LGJF) ACSR | Reference length(mm) | Weight (kg) | Color code | Optional fitting | |
Min | Max | ||||||
NL-16/3 | 5.17 | 5.79 | 16/3 | 444 | 0.1 | Browm | TC-05 |
NL-25/4 | 6.54 | 7.34 | 24/4 | 546 | 0.1 | Yellow | |
NL-35/6 | 7.35 | 8.26 | 35/6 | 622 | 0.2 | Red | |
NL-50/8 | 9.26 | 10.39 | 50/8 | 685 | 0.2 | Yellow | |
NL-70/10 | 10.40 | 11.68 | 70/10 | 736 | 0.3 | Blue | |
NL-95/15 NL-95/20 NL-120/7 | 13.12 | 14.66 | 95/15 95/20 120/7 | 876 | 0.6 | Red | TC-07 |
NL-120/20 NL-120/25 NL-150/8 | 14.67 | 16.59 | 120/20 120/25 150/8 | 889 | 0.8 | Black | TC-12 |
NL-150/20 NL-150/25 NL-150/35 NL-185/10 | 16.60 | 18.77 | 150/20 150/25 150/35 185/10 | 1016 | 1.1 | Green | |
NL-185/25 NL-185/30 NL-185/45 NL-210/10 NL-210/25 NL-210/35 NL-210/50 | 18.78 | 21.26 | 185/25 185/30 185/45 210/10 210/25 210/35 210/50 | 1155 | 1.7 | Orange | |
NL-240/30 NL-240/40 NL-300/15 NL-300/20 | 21.27 | 24.05 | 240/30 240/40 300/15 300/20 | 1270 | 2.3 | Blue | TC-16 |
NL-300/25 NL-300/40 NL-300/50 | 24.06 | 27.20 | 300/25 300/40 300/50 | 1442 | 3.0 | Brown |
Note: Meaning of letters: N-tension set; L-bolt preformed; after "-" is conductor type; LGJ-ACSR
This Table is simply listed some products, if you require other selection product, please contact the company (follow newt page).
The preformed conductor tension set is only used for overhead line below 110KV.
Table 1-6 preformed conductor tension set ( used on aluminum stranded conductor) model table
DL/T763-2001 Standard Type | Cable range (mm) | (GB1179-83) Suitable conductor type (LJ) Aluminum stranded conductor | Reference length(mm) | Weight (kg) | Color code | Optional fitting | |
Min | Max | ||||||
NL-16/LJ | 4.62 | 5.16 | 16 | 406 | 0.1 | Blue | TC-05 |
NL-25/LJ | 5.80 | 6.53 | 25 | 444 | 0.1 | Orange | |
NL-35/LJ | 7.35 | 8.26 | 35 | 622 | 0.2 | Red | TC-07 |
NL-50/LJ | 8.27 | 9.25 | 50 | 685 | 0.2 | Green | TC-12 |
NL-70/LJ | 10.40 | 11.68 | 70 | 736 | 0.4 | Blue | |
NL-95/LJ | 11.69 | 13.22 | 95 | 800 | 0.4 | Orange | |
NL-120/LJ | 13.12 | 14.66 | 120 | 876 | 0.6 | Red | |
NL-150/LJ | 14.67 | 16.59 | 150 | 889 | 0.8 | Black | |
NL-185/LJ | 16.60 | 18.77 | 185 | 1016 | 1.1 | Green | |
NL-210/LJ | 16.60 | 18.77 | 210 | 1016 | 1.1 | Green | |
NL-240/LJ | 18.78 | 21.26 | 240 | 1155 | 1.7 | Orange | |
NL-300/LJ | 21.27 | 24.05 | 300 | 1270 | 2.3 | Blue | TC-16 |
NL-400/LJ | 24.06 | 27.20 | 400 | 1422 | 3.0 | Browm | |
NL-500/LJ | 27.21 | 30.78 | 500 | 1651 | 4.9 | Orange |
Note: Meaning of letters: N- tension set; L- bolt preformed; after "-" is conductor type; LJ- aluminum stranded conductor.
This Table is simply listed some products, if you require other selection product, please contact the company (follow newt page).