Construction
● Conductor: High-quality copper is used for excellent electrical conductivity and mechanical strength.
● Insulation: Conductor insulation is made from materials like Cross-Linked Polyethylene (XLPE), high-temperature resistant magnesium oxide powder, and other non-combustible inorganic materials to ensure electrical safety and durability.
● Sheathing: The outer sheath consists of high-quality annealed copper or low-smoke, non-toxic plastic materials to enhance fire safety.
● Armour: Flexible mineral insulated cables may feature aluminum alloy tape interlocked armor for additional mechanical protection.
Standard
BS 6387:1994
1. Title: Specification for Performance Requirements for Cables Required to Maintain Circuit Integrity Under Fire Conditions
2. Scope: This British Standard outlines the performance requirements and test methods for mechanical and fire tests applicable to cables rated at voltages not exceeding 450/750V, specifically for mineral-insulated cables conforming to BS 6207.
BS EN 60702-1:2002
1. Title: Mineral Insulated Cables and Their Terminations with a Rated Voltage Not Exceeding 750V - Part 1: Cables (IEC 60702-1:2002)
2. Scope: This British standard specifies the requirements for mineral-insulated general wiring cables with copper or copper alloy sheath and copper conductors, rated at 500 V and 750 V. It includes provisions for a corrosion-resistant outer covering over the copper sheath, when necessary, and outlines the manufacturing requirements, characteristics, and conformity methods for these cables.
IEC 60502-1:2014
1. Title: Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1 kV (Um = 1.2 kV) Up to 30 kV (Um = 36 kV) - Part 1: Cables for Rated Voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV)
2. Scope: This standard issued by the International Electrotechnical Commission (IEC) specifies the construction, dimensions, and test requirements for power cables with extruded solid insulation for rated AC voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV), intended for fixed installations such as distribution networks or industrial settings.
IEC 60702-2:2011
1. Title: Mineral Insulated Cables and Their Terminations with a Rated Voltage Not Exceeding 750V - Part 2: Terminations (IEC 60702-2:2011)
2. Scope: This standard issued by the International Electrotechnical Commission (IEC) specifies requirements for the terminations of mineral-insulated cables with rated voltages not exceeding 750V.
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