LT Xlpe Power

Conductor

FGIL cables are made with both aluminium and copper conductors. The conductors are made from electrolytic-grade, high-purity aluminium and copper, conforming to IS 8130, and are available in Solid circular,Compacted circular, non-compacted circular and compacted shaped.

Insulation

FGIL XLPE cables are specially manufactured with high dielectric grade cross-linked polyethylene insulation, which is applied through an extrusion process.
FGIL XLPE cables are manufactured using an XLPE compound formulated with antioxidants to enhance thermal and oxidative stability.
XLPE insulated cables are designed to operate continuously at temperatures up to 90°C and can withstand short circuit temperatures of up to 250°C for short durations.

Core Identification

The cores are identified by different colours :

Single core: Red, Yellow, Blue, Black or Natural
Two core: Red & Black
Three core: Red, Yellow & Blue
Four core: Red, Yellow, Blue & Black
Three and half core: Red, Yellow, Blue for Phase Core and Black for Reduced Neutral Core
Five Core: Red, Yellow, Blue, Black & Grey
Six Core & Above: All core Grey with Black numbering

Laying Up :

In multicore cables, the cores are laid up according to the above colour scheme.

Inner Sheath

Laid-up cores are provided with a bedding of thermoplastic material to protect against mechanical damage.”

Outer Sheath :

All FGIL Cables are provided with PVC outer sheath. FGIL cables are manufactured with various characteristic of sheathing compounds.

Heat Resistant compound for sheath	ST2
Flame retardant Compound	FR
Flame retardant Low Smoke & Halogen	FR-LSH
UV radiation Resistance compound
Anti Rodent and Anti Termite Compound.

PVC compounds used for FGIL cables are available in various grades to meet the specifications of IS 5831.

Armouring :

Armouring is applied over the inner sheath to provide protection against mechanical damage. Typically, the armouring consists of galvanized steel wires or strips. For single-core cables used in AC systems, non-magnetic hard-drawn aluminium wires or strips are employed as armouring material. For cables with a calculated diameter under armouring not exceeding 13 mm, armouring shall consist of round wires. For cables with a calculated diameter under armouring greater than 13 mm, armouring may consist of either round wires or strips. For Single Core cables used in AC circuits Aluminium Round Wire or Flat Strip armour is provided to avoid magnetic hysteresis losses.

Fire Performance – Critical Applications:

For enhanced fire safety, the following special PVC sheath compounds may be used:

FR (Flame Retardant): Designed to resist the spread of fire.
FR-LSH (Flame Retardant Low Smoke & Halogen): Limits smoke density and halogen gas emissions during combustion — ideal for indoor/public environments like hospitals, metros, and high-rise buildings.

Advantages Of Xlpe Cables

Higher Current Rating.
Higher Short Circuit Rating.
For a short time it can withstand maximum 130˚C and is favourable to endure short circuit stresses.
The low dielectric loss is a significant advantage
The excellent mechanical features of the insulation improves the protection against external effects.
The resistance of the XLPE to acids, alkalies is outstanding and is often compensating the adverse environmental influences.
Longer Service Life.
Light in weight
Has better resistance to most chemicals, oils, acids, etc.
Can be installed along cable routes without elevation limitations

Product Code

As per IS 7098 (Part I) 1988, the codes are :

Constituent	Code
Aluminium conductor	A
XLPE insulation	2X
Steel round wire armour	W
Non-magnetic round wire armour	Wa
Steel strip armour	F
Non-magnetic strip armour	Fa
Double steel strip armour	FF
Double steel round wire armour	WW
PVC Outer sheath	Y

Application

The cables are suitable for used on AC Single phase or Three phase (Earthed or Unearthed) syatem for rated voltage upto and including 1100 Volts. These cables can be used on DC systems for rated voltage upto and including 1500 Volts to earth.