Follow Us On:

LT PVC Power Cable

Conductor

Material:

  • High conductivity, Electrolytic-grade Aluminium as per IS 8130
  • High conductivity, Plain Annealed Copper as per IS 8130

Construction Types:

  • Solid: For smaller conductor sizes (Copper up to 6 sq.mm and Aluminium upto 10 sq.mm)
  • Stranded: Class 2

Shapes:

  • Solid Circular
  • Stranded Non Compacted Circular
  • Stranded Compacted Circular
  • Stranded Compacted Shaped
Click To Downloads LT PVC Power Cable Brochure
Download Here

Insulation

Material:

  • PVC Type A as per IS 5831 which is suitable for 70 deg C continuous operation
  • PVC Type C as per IS 5831 which is suitable for 85 deg C continuous operation

Application:

  • Extruded over the conductor

Properties:

  • Excellent dielectric strength
  • High insulation resistance
  • Heat resistance up to 70°C /85°C continuous operation

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 Core & reduced neutral 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
Assembly Of Cores

Cores are laid up together with suitable lay.

  • Cores are laid up together with suitable lay.
  • The outermost layer shall have the right hand lay and the successive layers shall be laid with the opposite lay.
  • Fillers (non-hygroscopic material) may be used to obtain a circular shape
  • Binding tape may be applied.
Inner Sheath

Material:

  • Galvanized steel round wire or strips for Multi core cable
  • Aluminium round wire or strips for single core cable
  • 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.

Application:

Armouring is applied over the inner sheath to provide protection against mechanical damage.

Armouring :

Material:

  • Galvanized steel round wire or strips for Multi core cable
  • Aluminium round wire or strips for single core cable
  • 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.

Application:

Armouring is applied over the inner sheath to provide protection against mechanical damage.

Outer Sheath :

Material:

  • PVC Type ST1 as per IS 5831 for 70 deg C continuous operation
  • PVC Type ST2 as per IS 5831 for 85 deg C continuous operation

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.

Additional Protective Properties

  • For harsh or exposed installations, sheath compounds may also be enhanced with:
  • UV Radiation Resistant Compounds: Protect against degradation due to prolonged sunlight exposure.
  • Anti-Rodent and Anti-Termite Additives: Prevent damage from pests, suitable for underground and outdoor cabling.

 

Advantages Of Pvc Cables

Reliable Insulation
PVC provides good dielectric strength, ensuring safe power transmission.

Suitable for LT Applications
Designed for voltages up to 1100 V, ideal for domestic, industrial, and commercial use.

Flame Retardant Properties
Available in FR and FR-LSH versions to reduce the spread of fire and toxic smoke.

Moisture & Chemical Resistance
Resists water, acids, alkalis, oils, and other industrial chemicals.

UV and Sunlight Resistant
With UV-stabilized sheath, can be used outdoors and in sunlight-prone areas.

Rodent and Termite Protection (optional)
Special sheath compounds resist rodents and termites, suitable for underground and exposed installations.

Good Mechanical Strength
With armouring, it can withstand mechanical stress and external impacts.

Easy to Install
PVC is flexible, lightweight, and easy to strip and terminate.

Cost-Effective
More economical compared to other insulation types like XLPE or rubber.

Wide Availability
Readily available in various sizes, core configurations, and types (armoured/unarmoured).

Maintenance-Free
Durable and requires minimal maintenance once installed.

Environment Suitability
Can be installed in conduits, ducts, trenches, cable trays, and even overhead (with UV resistance).

Product Code

As per IS 1554 (Part I) 1988, the codes are :

Constituent Code
Aluminium conductor A
PVC insulation Y
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

Power Distribution:

  • For LT power supply up to 1100 volts.
  • Used in urban and rural electrification, substations, switchboards.

Industrial Installations:

  • Suitable for industrial wiring, cable trays, and raceways.
  • Used in factories, refineries, petrochemical plants, etc.

Commercial and Residential Wiring:

For fixed wiring in buildings, commercial complexes, housing projects, etc.

Underground or Duct Installation:

Applicable for direct burial, in conduits or underground ducts.

Control and Instrumentation:

Used for control circuits, motor connections, and instrumentation wiring in LT systems.

Outdoor and Indoor Use:

Can be installed in air, indoors, or outdoor (with suitable protection).