IS 398 (Part 1):1996
Aluminium Conductors for Overhead Transmission Purposes - Part 1- Aluminium Stranded Conductors
summary
Aluminium stranded conductors are electrical conductors made from multiple strands of aluminium wires twisted together. They are widely used in overhead power transmission and distribution lines due to their lightweight nature, good electrical conductivity, flexibility, and cost-effectiveness, making them suitable for long-span and high-voltage applications.
Why BIS Certificate is Mandatory for Aluminium Conductors for Overhead Transmission Purposes - Part 1- Aluminium Stranded Conductors
BIS certification is mandatory to ensure aluminium stranded conductors meet Indian Standards for electrical performance, mechanical strength, and safety. These conductors are critical to power infrastructure, and BIS standards help prevent failures, overheating, line losses, and accidents, ensuring reliable electricity transmission and public safety across India.
What is BIS Certified for Aluminium Conductors for Overhead Transmission Purposes - Part 1- Aluminium Stranded Conductors
The BIS certified specification defines requirements for aluminium stranded conductors used in overhead transmission. It covers chemical composition of aluminium, construction details, number of strands, tensile strength, electrical resistance, dimensions, testing methods, and inspection criteria, ensuring consistent quality, performance, and compliance with Indian power transmission standards.
Test required for Aluminium Conductors for Overhead Transmission Purposes - Part 1- Aluminium Stranded Conductors
| Title | Mandatory/Optional |
|---|---|
| Freedom from defects | -- |
| Diamete | Required |
| Joints in wires | -- |
| Stranding | Required |
| Breaking load | Required |
| Wrapping test | Required |
| Resistance | Required |
| Size | Required |
| Resistance | Required |
| Joints in stranded conductors | -- |
| Lay Ratio | Required |
| Breaking load | Required |
Benefits of BIS Certification for Aluminium Conductors for Overhead Transmission Purposes - Part 1- Aluminium Stranded Conductors
1. Assured Electrical Performance
BIS certification ensures conductors meet specified electrical resistance and conductivity values, reducing transmission losses and improving power efficiency.
2. Mechanical Strength and Durability
Certified conductors comply with tensile strength and construction requirements, ensuring reliability under wind load, temperature variation, and long-span conditions.
3. Safety and Reliability
BIS standards minimize risks of conductor failure, overheating, and line snapping, enhancing safety of power transmission networks.
4. Legal and Regulatory Compliance
BIS certification is compulsory in India, allowing manufacturers and suppliers to participate in utility projects and government tenders without compliance issues.
5. Market Acceptance and Trust
BIS-marked conductors gain higher acceptance among power utilities, EPC contractors, and regulators, strengthening brand credibility and market competitiveness.