Learn — Indian cable & wire reference
Specification-grade reference content for engineers, contractors, and procurement teams. Every page on this hub is anchored to a current Indian Standard or NBC 2016 clause and cites bis.gov.in for verification.
Wire colour code in India
IS 732:2019 + NBC 2016 + IEC 60446 — phase, neutral, earth conventions.
Types of cables in India
FR / FR-LSH / HFFR / HRFR / HR-FR-LSH, Armoured, XLPE, Coaxial, LAN, Solar DC — 16 types compared.
Cable fire performance
FR vs FR-LSH vs HFFR vs HRFR. HCl, smoke density, oxygen index. Reaction-to-Fire vs Fire Survival.
NBC 2016 fire-safety compliance matrix
Building type → mandated cable type. Hospitals, G+4+, commercial, metro, data-centre.
IS 3961 ampacity chart
Current-carrying capacity 1-240 sqmm copper + 1.5-400 sqmm aluminium. Derating + voltage drop.
Copper weight reference + calculator
IS 8130:2013 conductor weights — kg/m, kg/100m, kg/1000m, Class 2 + Class 5.
Best wire brands in India
Buyer's comparison of Finolex, Havells, KEI, Lapp, National Cables, Polycab, RR Kabel.
Cable size calculator
IS 3961:2024 ampacity + voltage drop. 1-phase and 3-phase. Class 5 copper.