LT XLPE Cables

LT XLPE CABLES THE SUPERIOR PRODUCT

LT-XLPE Cables have a higher conductor rating i.e. "90°C as compared 70°C of PVC and hence higher current rating.
Maximum temperature limit under Short Circuit conditions for LT-XLPE Cables is 250°C as against 160"C for PVC Cables. Hence, LT-XLPE Cables have higher Short Circuit rating.
LT-XLPE Cables have higher emergency overload capacity than PVC Cables ( upto 60%).
LT-XLPE Cables have longer life as compared to conventional PVC Cables.
Tensile Strength for LT-XLPE Cables is 1.9 Kg/mm2 as against 1.25 - 2.5 Kg/mm2 for PVC Cables.
Elongation (%) in LT-XLPE Cables is 300-500 as compared to 200-400 in PVC Cables.
LT-XLPE Cables have high corrosion resistance in polluted atmosphere as compared to PVC Cables.
LT-XLPE Cables have better properties of resistance to chemical and corrosive gases.
LT-XLPE Cables have better properties to withstand vibrations, hot impacts.
Dielectric strength (KV/mm) for LT-XLPE Cables is 40-50 as compared to 20-35 for PVC Cables.
The moisture resistance of LT-XLPE Cables is nearly 100 times that of PVC.
LT-XLPE Cables have low Installation cost because of light weight, dimensions and are far more flexible.
Insulation resistance of LT-XLPE Cables is very high as compared to PVC (as high as 1000 times).
LT-XLPE Cables are ideal for transmission and distribution of power.
Jointing of LT-XLPE Cables is easier and quicker.
Low temperature Brittleness Degree 0C for LT-J XLPE Cables is-90 against-15 for PVC Cables.

OVERALL DIAMETER AND CURRENT RATINGS (IN GROUND) OF 1.1 KV, 31/2 Core, XLPE / PVC INSULATED, PVC SHEATHED (ARMOURED AND UNARMOURED) CABLES.

Nominal Area of Conductor

Approximate Overall Diameter (mm)

Current Rating Multicore

Unarmoured

Armoured

MM2

PVC

XLPE

PVC

XLPE

PVC

XLPE

25 23.9 22.5 25.8 24.4 76 90
35 26.2 24.9 28.1 27.0 92 108
50 29.5 27.4 31.4 29.1 100 126
70 33.5 31.8 35.2 33.5 135 158
95 37.2 34.9 38.9 36.7 165 187
120 41.2 38.7 42.7 40.6 185 215
150 43.8 41.6 46.1 43.9 210 240
185 47.7 43.8 49.6 47.1 235 273
240 56.6 53.2 58.3 55.2 275 316
300 62.5 59.2 64.2 61.0 305 355
400 69.8 66.8 71.6 68.3 335 420
500 77.2 73.4 79.4 74.8 350 505

RATING FACTOR FOR VARIATION IN GROUND TEMPERATURE

GROUND TEMPERATURE(° C) 30 3.5 40 45
RATING FACTOR ( XLPE ) 1.00 0.94 0.91 087
RATING FACTOR ( PVC ) 1.00 0.94 0.87 0.79