IS 9857 : 1990
Cables - Welding Cables – Specification
summary
Welding cables are flexible electrical cables specially designed to carry high current from welding machines to electrode holders and workpieces. They are made with fine copper strands and durable insulation to withstand heat, abrasion, oil, and harsh industrial environments during arc welding operations.
Why BIS Certificate is Mandatory for Welding Cables – Specification
BIS certification is mandatory for welding cables to ensure electrical safety, performance reliability, and fire prevention. Welding cables carry very high current, and substandard cables can cause overheating, short circuits, electric shocks, and fire hazards. BIS standards ensure safe insulation, conductor quality, and long service life.
What is BIS Certified for Welding Cables – Specification
The BIS certified specification for welding cables defines requirements for conductor material, cross-sectional area, current-carrying capacity, insulation type, flexibility, temperature resistance, and mechanical strength. It also specifies tests for voltage withstand, insulation resistance, durability, and marking to ensure safe and efficient welding operations.
Test required for Welding Cables – Specification
| Title | Mandatory/Optional |
|---|---|
| Purity test for Cu | Optional |
| Conductor resistance | Required |
| High voltage (water immersion) test/ spark test | Required |
| Conductor | Required |
| Separator | Required |
| Covering | Required |
| Annealing test | Required |
| Thickness of covering | Required |
| Tensile strength and elongation at break | Required |
| Aging in air oven | Required |
| Aging in air bomb | Required |
| Oil resistance test | Required |
| Hot set test | Required |
| Static flexibility test | Required |
| Flammability test | Required |
Benefits of BIS Certification for Welding Cables – Specification
1. Electrical Safety Assurance
BIS-certified welding cables meet strict safety standards, reducing risks of electric shock, overheating, and fire during welding operations.
2. Reliable Performance
Certified cables provide consistent current flow, better conductivity, and stable arc performance, improving weld quality.
3. Durability in Harsh Conditions
BIS standards ensure resistance to heat, oil, abrasion, and mechanical stress, increasing cable lifespan.
4. Legal Compliance in India
BIS certification is mandatory, allowing manufacturers and suppliers to sell welding cables legally without regulatory issues.
5. Trust and Market Acceptance
BIS-marked welding cables gain higher acceptance among industries, contractors, and government projects, enhancing brand credibility.