Question

The detailed form of V.I.R. wire is
1. Varnished insulating rubber
2. Vulcanised inducting rubber
3. Valuable Indian Rubber
4. Vulcanised Indian Rubber

Answer 1

Correct Answer - Option 4 : Vulcanised Indian Rubber

The detailed form of VIR is Vulcanised Indian Rubber.

Vulcanized Indian Rubber:

• These consists of a copper conductor covered with an insulation layer of VIR.
• A cotton tape covering is provided over this insulation layer to protect the wire from moisture and to provide mechanical strength to the wire.
• These type of wires are used in 250 V CTS wiring, casing or capping or cleat wiring.