IS 694:2007 is a technical standard published by the Bureau of Indian Standards (BIS) that applies to PVC insulated cables, which are used for electric power transmission and distribution in India. The standard covers a wide range of cables used in various applications, including domestic, commercial, and industrial sectors. It outlines the requirements for the manufacturing, testing, and marking of PVC insulated cables, ensuring their safety, performance, and durability.
Scope and Application
The scope of IS 694:2007 extends to both single-core and multicore cables with copper or aluminum conductors. These cables are used for fixed installations in buildings, underground systems, outdoor areas, electrical appliances, and more. The standard specifies the voltage ratings, sizes, types, and colors of cables suitable for different applications. It also includes guidelines for laying, installation, and maintenance of the cables to ensure their optimal performance and longevity.
Requirements and Testing
IS 694:2007 sets out specific requirements for various aspects of PVC insulated cables, including conductor resistance, insulation resistance, voltage withstand capability, tensile strength, and dimensional measurements. It also stipulates the mechanical and thermal properties of the cables, such as flexibility, resistance to heat and cold, impact resistance, and flame retardancy. These requirements ensure that the cables can withstand the intended operating conditions and provide a safe and reliable electrical connection.
The standard mandates rigorous testing procedures to verify compliance with its requirements. Manufacturers are required to perform tests on samples taken from each production batch, including electrical, mechanical, and environmental tests. These tests assess the electrical and mechanical characteristics of the cables, their resistance to aging, and their ability to withstand harsh environmental conditions.
Conclusion
IS 694:2007 is a comprehensive technical standard that plays a crucial role in promoting the safety and efficiency of PVC insulated cables in India. By strictly adhering to the requirements outlined in the standard, manufacturers can produce high-quality cables that meet the needs of various electrical installations. Compliance with IS 694:2007 ensures that these cables are safe for use, reliable in operation, and capable of delivering electricity without any hazards. It is essential for professionals involved in the design, installation, and maintenance of electrical systems to familiarize themselves with this standard to ensure compliance and enhance electrical safety.
Nina She