Cables

XLPE Low Tension Cables

XLPE means cross-linked polyethylene or vulcanized polyethylene. The base material is low density polyethylene. Polyethylene is a thermoplastic material consisting of a long chain of hydrocarbon molecules. At elevated temperatures these molecules tend to move relative to one another so that the material becomes increasingly deformable and will eventually melt at the temperature around 110C. By means of a process similar to the vulcanization of rubber, the polyethylene molecules can be cross-linked. The process of cross-linking or vulcanization for our low tension cables, LT power cables and low voltage cable products consists of producing chemical bonds at intervals between the long molecular chains to give them a “ladder” effect which prevents slippage between molecules. As a result of cross-linking, the material becomes heat resistant and does not become soft at higher temperatures.

Technical Advantages:

  • Better resistance to chemicals.
  • Higher current rating, higher short Circuit Rating.Approx 1.2 times that of PVC.
  • Higher resistance to moisture.
  • Longer service life.
  • Thermosetting in nature.
  • Better resistance to surge currents.
  • Low Dielectric Losses.
  • Comparatively higher cable operation temperature 90°C and short circuit temperature 250°C
  • Higher insulation resistance,1000 times more than PVC cables.

Commercial Advantages:

  • Lower laying cost because of comparatively smaller diameter of cable and lighter weight*.
  • Lower installation charges as the diameter of cable is comparatively lesser with smaller banding radius, requiring less space requirement for laying of cables
  • **One size lower cable can be used as compared to PVC insulated cable.

Power Cables

A power cable is an assembly of two or more conductors, usually held together with an overall sheath.The assembly is used for transmission of electrical power. Power cables may be installed as permanent wiring within buildings, buried in the ground, run overhead and exposed.Flexible power cables are used for portable devices, mobile tools and machinery.

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Pricing Table

1. PVC/XLPE INSULATED HEAVY DUTY POWER CABLES FOR WORKING VOLTAGE UP TP 1100 INCLUDING VOLTS CONF. TO IS:1544(part 1) and IS: 7098(part 1) WITH LATEST AMMENDMENTS ALUMINIUM CONDUCTOR.

ARMOURED

No.of Cores 1.5sq.MM 2.5sq.MM
2 88 115
3 108 144
4 128 181
5 151 216
6 172 250
7 190 284
8 216 318
10 276 373
12 318 436
14 362 503
16 375 568
19 434 664
24 544 833
27 607 928
30 696 1070
37 848 1305
44 1029 1616
61 1405 2202

UNARMOURED

No.of Cores 1.5sq.MM 2.5sq.MM
2 62 88
3 77 114
4 97 145
5 116 173
6 137 206
7 155 238
8 180 271
10 216 334
12 255 389
14 293 457
16 333 524
19 392 617
24 496 777
27 555 870
30 634 995
37 775 1221
44 919 1467
61 1264 2017

ARMOURED

Size Sq.MM 2 CORE 3 CORE 3.5 CORE 4 CORE
4 149 194 …. 245
6 200 267 …. 342
10 310 417 …. 537
16 442 589 …. 774
25 674 966 1163 1272
35 921 1329 1526 1754
50 1251 1812 2118 2400
70 1770 2573 2998 3438
95 2542 3695 4317 4946
120 3188 4644 5531 6224
150 3976 5796 6684 7769
185 4892 7132 8338 9554
240 6291 9188 10710 12315
300 7835 11439 13341 15345
400 10272 15011 17357 20133

UNARMOURED

SIZE SQ.MM 2 CORE 3 CORE 4 CORE
4 120 170 219
6 171 242 316
10 276 389 511
16 394 576 761

RATE FOR SPECIAL CONSTRUCTION ON POWER AND CONTROL CABLES

EXTRA FOR SPECIAL CONSTRUCTION ON POWER CABLES
A Wire Armouring 1.5sq.mm
12 core & above 15.0%
    2.5sq.mm    
      9 core & above 15.0%
    2X16,3X16    
      & 4X10 & above 15.0%
B Standing of Conductor 6sq.mm & below 6%
C Tinning of Conductor   3%
D Extruded Inner Sheath   2.50%
E HR PVC Insulation 2%
    Extruded  
      Inner Sheath 2%
      Outer Sheath 2%
F Oxygen Index 5%
(Outer Sheath)
FRLS loading factor on power cables:
Cabel type
No of Core		 Inner
Sheath		 Outer Sheath
Armd Un-Armd
2 to 4 10% 10% 10%
5 to 10 7.5% 10% 10%
10 & above 7.50% 7.50% 7.50%

2. PVC/XLPE INSULATED HEAVY DUTY POWER CABLES FOR WORKING VOLTAGE UP TP 1100 INCLUDING VOLTS CONF. TO IS:1544(part 1) and IS: 7098(part 1) WITH LATEST AMMENDMENTS ALUMINIUM CONDUCTOR.

ARMOURED

SIZE(Sq.MM) 1 CORE
(RATE)		 2 CORE
(RATE)		 3 CORE
(RATE)		 3.5 CORE
(RATE)		 4 CORE
(RATE)
4 — 89 98 — 113
6 — 104 114 — 129
10 — 123 144 — 164
16 84 151 160 — 191
25 102 155 202 227 246
35 117 183 245 275 306
50 143 228 309 358 394
70 182 305 416 485 535
95 206 391 516 587 652
120 246 466 619 733 799
150 292 562 761 867 984
185 358 700 932 1082 1222
240 438 912 1191 1362 1561
300 534 1111 1440 1670 1880
400 670 1398 1831 2125 2390
500 918 1850 2479 2890 3243
630 1072 2329 3288 3926 4388
800 1478 — — — —
1000 1704 — — — —

UNARMOURED

SIZE(Sq.MM) 1 CORE
(RATE)		 2 CORE
(RATE)		 3 CORE
(RATE)		 3.5 CORE
(RATE)		 4 CORE
(RATE)
4 — 58 62 69
6 — 66 74 — 87
10 — 77 95 — 115
16 47 100 127 — 156
25 61 127 174 199 212
35 72 154 213 243 269
50 95 198 279 322 354
70 127 266 386 444 493
95 173 357 477 552 619
120 215 426 590 693 771
150 261 516 730 836 957
185 321 646 909 1052 1188
240 403 858 1162 1341 1521
300 493 1059 1428 1648 1861
400 647 1357 1794 2078 2347
500 771 1708 2338 2701 3048
630 919 2153 3097 3663 4112
800 1287 — — — —
1000 1513 — — — —

RATE FOR SPECIAL CONSTRUCTION ON POWER AND CONTROL CABLES

EXTRA FOR SPECIAL CUNSTRUCTION ON POWER CABLES
A Steel Wire Armouring 2X16* & above 25%
3X16* & above 25%
3.5X25 & above 25%
4X10* & above 25%
B Round Aluminium Wire For Single Core 25%
C Armouring 95sq.MM & above
D Standing Of Conductor 10sq.MM & below 10%
E Extruded PVC
Inner Sheath Up to 50sq.MM 5%
70sq.MM & above 2.50%
F HR PVC
Heat Resisting PVC Insulation 2%
Inner Sheath 2%
Outer Sheath 2%
G Oxygen Index
Outer Sheath		 5%

 

FRLS Loading Factor On Power Cables:
Cable Types Inner Outer Sheat
Sq.(MM) Sheat Armd Unarmd
  Power (All)
Up to 16 10% 15% 15%
25 to 50 7.5% 10% 10%
70 & above 5% 7.5% 7.5%
Power Single Core (Aluminium)
Up to 16 NA 20% 20%
25 to 70 NA 15% 15%
95 & above NA 12.5% 12.5%

PVC Insulated LT Heavy Duty Cables

The cables are suitable for use on AC single phase or three phase (earthed or unearthed) systems for rated voltage up to and including 1100 volts. These cables can be used on DC systems for rated voltage up to and including 1500 volts to earth.

The most acceptable metals for conductors are copper and aluminium due to their higher conductivity and ductility. As copper has got higher affinity for sulphur, it corrodes in the atmosphere where sulphur fumes are present. In these conditions tinned copper should be used. Aluminiumoxide film which is always present on Aluminium conductor surface acts as barrier and it protects the Aluminium conductor from corrosion in fumes laden atmosphere.

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