HR-FR (heat resistant, flame retardant) PVC-insulated copper house wire, Gold range, in 90 m coils from 1.0 to 4.0 sq mm, with the ISI mark to IS 694.
- HR-FR PVC insulation — heat resistant and flame retardant, as printed on the pack.
- ISI mark with IS 694 printed on the pack.
- Single-core, multi-strand copper conductor for house and building wiring.
- 90 m coils in 1.0, 1.5, 2.5 and 4.0 sq mm — choose the size from the options.
- Pack also marked lead free and anti-termite.
- Voltage grade up to 1100 V, as listed in the maker’s wire catalogue.
- Heat-resistant insulation suits crowded conduits, hot roof slabs and runs near light fittings.
Single-core PVC-insulated copper wire is what homes, flats, shops and offices are wired with. It is pulled through PVC conduit or laid in casing-capping, one wire each for the phase, the neutral and the earth, and its size is the copper cross-section in sq mm: the bigger the size, the more current it can safely carry.
This Gold range wire has HR-FR insulation. FR (flame retardant) PVC resists the spread of flame along the wire; HR (heat resistant) PVC is made to withstand higher conductor temperatures than general-purpose PVC, which helps in crowded conduits, hot roof slabs and heavily loaded circuits. For standard FR wire up to 6.0 sq mm, see our copper FR wire.
Typical sizes by circuit
- 1.0 sq mm — typically lighting circuits and light points.
- 1.5 sq mm — typically lighting and fan circuits.
- 2.5 sq mm — typically socket (power point) circuits.
- 4.0 sq mm — typically AC and geyser circuits.
These are typical sizes for copper wire in conduit. Your electrician sizes each circuit for its load, run length and MCB, and the MCB must never be rated above what the wire can carry.
Where to use it
- New house wiring in PVC conduit or casing-capping.
- Rewiring old homes, flats, shops and offices.
- Circuits in hot roof slabs, crowded conduits and near light fittings.
How to install
- Plan the circuits with your electrician and pick the size for each one.
- Pull the wires through PVC conduit or lay them in casing-capping without overfilling it.
- Keep one colour for each role — commonly red for phase, black for neutral and green for earth.
- Make joints only in junction or switch boxes with proper connectors, never inside the conduit.
- Connect each circuit to an MCB that suits the wire size, and test the insulation before switching on.
House wiring must be done by a licensed electrician, with the supply switched off, to the local wiring rules.
Frequently asked questions
- What is the difference between FR and HR-FR wire?
- Both have flame-retardant PVC insulation that resists the spread of flame. HR-FR adds heat resistance: the PVC is made for higher conductor temperatures than general-purpose PVC, which helps in hot or crowded runs.
- Which MCB goes with each wire size?
- Typically a 6A MCB on 1.0 sq mm, 6A to 10A on 1.5 sq mm, 16A on 2.5 sq mm and 20A to 25A on 4.0 sq mm. The MCB must never be rated above what the wire can carry.
- Is it ISI marked?
- Yes. The pack carries the ISI mark with IS 694, the Indian standard for PVC-insulated wires and cables.
- Is HR-FR the same as FRLS?
- No. FRLS (flame retardant, low smoke) insulation also limits smoke and fumes in a fire. This wire is sold as HR-FR, not FRLS.
- How long is a coil?
- Each coil is 90 m, and every size in this listing comes in the same 90 m coil.
Buy copper HR-FR wire (Gold) in 90 m coils online from Electric Market, Chennai. For site, contractor or bulk quantities, contact us for a quote.