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Polycab FRLS-H Single Core Wire
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Polycab FRLS-H Single Core Wire is a flame retardant low smoke halogen-free electrical wire with a single core annealed copper conductor, manufactured to IS 694:2010 standards. FRLS-H stands for Flame Retardant (FR), Low Smoke (LS), and Halogen-Free (H) - three safety properties that make it a safer specification than standard FR wire for enclosed buildings. In a fire, standard PVC wire releases thick smoke and toxic halogen gases that reduce visibility and cause respiratory harm. FRLS-H wire emits significantly less smoke and no halogen gases, giving occupants more time and cleaner air to evacuate.
Suitable for all standard residential and commercial wiring applications - conduit, surface, and concealed installations. The single core copper conductor provides reliable conductivity across the available size range. For outdoor use, install inside UV-resistant conduit - the wire itself is designed for indoor applications.
| Specification | Details |
|---|---|
| Brand | Polycab |
| Product Type | FRLS-H Single Core Electrical Wire |
| Conductor | Single core annealed copper |
| FR | Flame Retardant - resists fire spread along the wire |
| LS | Low Smoke - minimal smoke emission during fire, improves evacuation visibility |
| H | Halogen-Free - no toxic halogen gases released in fire |
| Standard | IS 694:2010 compliant |
| Available Sizes | 0.75 sq.mm to 300 sq.mm |
FR = Flame Retardant, LS = Low Smoke, H = Halogen-Free. In a fire, standard PVC wire releases thick black smoke and toxic halogen gases that reduce visibility and cause respiratory harm - the leading cause of fire fatalities in enclosed buildings. FRLS-H wire resists fire spread, emits significantly less smoke, and releases no halogen gases - giving occupants more time and cleaner air to evacuate. This is why it is the specified wire type for high-rise buildings, hospitals, schools, and commercial spaces with high occupancy.
Regular FR wire is flame retardant but still releases significant smoke and toxic halogen gases when it burns. FRLS-H adds two more properties - low smoke emission and halogen-free composition - that make it substantially safer in fire conditions. The practical difference matters most in enclosed spaces like stairwells, corridors, and rooms where smoke accumulates quickly. If you are wiring a high-rise apartment or any building with limited ventilation and multiple occupants, FRLS-H is the safer specification.
Find the unique code on the product box and SMS it to 99010 00025. A genuine product will receive a confirmation reply from BG-PRDSEC-S with the specific product details. Counterfeit products return an INVALID code error. If the QR code on the box is blurry, use the SMS method. Each code can only be verified once - if you receive an "already scanned" message on a new box, treat it with caution.
Polycab FRLS-H wire is available from 0.75 sq.mm to 300 sq.mm. Select the size based on the current load of the circuit: 1 sq.mm for light points and small loads, 1.5 sq.mm for general power points, 2.5 sq.mm for air conditioners and higher loads, 4 sq.mm and above for heavy appliances and sub-mains. Your licensed electrician will calculate the correct size based on the circuit load and run length as per IS standards.
FRLS-H wire is designed for indoor use in conduits and cable trays. For outdoor installations, run it inside UV-resistant conduit to protect the insulation from sunlight and weather degradation. Do not leave FRLS-H wire exposed to direct sun or rain without conduit protection - the insulation will degrade over time and compromise both the safety properties and the electrical insulation.

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