BIS Certification for Cables and Wires: IS 694, IS 1554, and Mandatory Requirements

BIS Certification for Cables and Wires: IS 694, IS 1554, and Mandatory Requirements

BIS Certification for Cables and Wires: IS 694, IS 1554, and Mandatory Requirements

Electrical cables and wires are among India's most safety-critical products and are subject to mandatory BIS ISI mark certification. Substandard cables are a leading cause of electrical fires in India — rigorous certification is essential.

Key BIS Standards for Cables and Wires

  • IS 694: PVC insulated cables for working voltages up to and including 1100V — the most common standard for house wiring cables
  • IS 1554 Part 1: PVC insulated heavy-duty cables for working voltages up to and including 1100V
  • IS 1554 Part 2: PVC insulated heavy-duty cables for working voltages from 3.3kV to 11kV
  • IS 7098: Cross-linked polyethylene (XLPE) insulated cables
  • IS 9968: Elastomer insulated cables

IS 694: House Wiring Cables

IS 694 covers the flexible and rigid cables used for building wiring, fan wiring, light points, and socket circuits. Key requirements include:

  • Conductor material and cross-section (copper or aluminum, minimum area)
  • Insulation thickness — minimum PVC insulation thickness for each voltage class
  • Insulation resistance — minimum electrical resistance between conductors
  • Voltage withstand test — cable must withstand specified AC voltage without insulation breakdown
  • Mechanical properties — tensile strength and elongation of insulation material
  • Thermal aging — insulation properties must be maintained after thermal aging

BIS Market Surveillance for Cables

Cable market surveillance is one of BIS's most intensive activities. BIS regularly samples cables from:

  • Hardware stores and electrical retailers
  • Construction sites
  • E-commerce platforms
  • Wholesale markets

Common failures found in market surveillance: reduced conductor cross-section (less copper/aluminum than specified), thinner insulation than specified, and insulation that fails voltage withstand tests. These directly increase fire risk.

For Procurement Teams

Always verify the ISI mark and CM/L number on cable drums before acceptance. Check the CM/L number on the BIS portal. Require test certificates from the cable manufacturer for each lot. Substandard cables void building insurance and create personal liability for those who specified them.