IS 9968 (Part 1)
Electrical - Elastomer insulated cables (Part.1): For working voltages up to and including1100 V
Summry
Elastomer insulated cables (Part 1) are flexible electrical cables designed for working voltages up to and including 1100 V. They use elastomer-based insulation that provides high resistance to heat, oil, abrasion, and environmental stress, making them suitable for industrial and heavy-duty applications.
Why BIS Certificate is Mandatory for Elastomer insulated cables?
BIS certification is mandatory to ensure elastomer insulated cables meet Indian safety and performance standards. These cables carry electricity up to 1100 V, so certification ensures proper insulation quality, fire resistance, mechanical strength, and protection against electrical hazards, reducing risks of accidents and system failures.
What is BIS Certified for Elastomer insulated cables?
BIS certified specification for elastomer insulated cables is covered under IS 9968 (Part 1). This standard defines requirements for conductor quality, insulation material, voltage rating, temperature resistance, electrical performance, testing methods, and marking to ensure safe and reliable cable usage.
Test required For Elastomer insulated cables
Tests on Conductor
| Title | Mandatory/Optional |
|---|---|
| Purity test for Cu | Optional |
| Annealing test (for copper) | Optional |
| Tensile test ( for Aluminium) | Optional |
| Wrapping test ( for Aluminium) | Optional |
| Persulphate test (for tinned Copper) | Optional |
| Tape | Required |
| Fillers | Required |
| Braid | Required |
| Compound & Varnish | Required |
| Separator tape (where applicable) | Required |
| Core Identification | Required |
| Laying up of cores | Required |
| Binder tape | Required |
Physical tests for insulation and sheath
| Title | Mandatory/Optional |
|---|---|
| Thickness of insulation and sheath and overall diameter | Required |
| Annealing test (for copper) Tensile strength and elongation at breakTensile test ( for Aluminium) | Required |
| Ageing in air oven | Optional |
| Ageing in air bomb | Optional |
| Ageing in oxygen bomb | Optional |
| Hot set | Optional |
| Oil resistance | Optional |
| Tear resistance | Optional |
| Conductor Resistance test | Required |
| High voltage test/ Spark test | Required |
| Insulation resistance | Required |
| High voltage (water immersion) test | Optional |
| Flammability test (applicable to cables finished with SE3, SE4 and SE5 sheaths only) | Optional |
| Water absorption test (for insulation as applicable) | Optional |
| Optional | Optional |
Benefits of BIS Certification for Elastomer insulated cables
1. Electrical Safety Assurance BIS certification ensures cables are tested for insulation strength, voltage endurance, and resistance to short circuits, reducing fire and shock risks.
2. Quality and Durability Certified cables meet standards for flexibility, tensile strength, and resistance to heat, oil, and mechanical wear, ensuring long service life.
3. Legal Compliance BIS marking is mandatory in India, allowing manufacturers and importers to legally sell elastomer insulated cables without penalties or rejection.
4. Consumer and Industry Trust The BIS mark builds confidence among users, contractors, and industries by assuring consistent and standardized cable performance.
5. Market and Brand Advantage BIS-certified products gain better acceptance in government projects, industrial tenders, and organized markets, improving brand reputation and competitiveness