IEC 60502-1 – 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).

This part of IEC 60502 specifies the construction, dimensions and test requirements of power cables with extruded solid insulation for rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV) for fixed installations such as distribution networks or industrial installations.

This standard includes cables which exhibit properties of reduced flame spread, low levels of smoke emission and halogen-free gas emission when exposed to fire.

Cables for special installation and service conditions are not included, for example cables for overhead networks, the mining industry, nuclear power plants (in and around the containment area), submarine use or shipboard application.

Types of conductors include Class 1 (solid) or Class 2 (stranded) of plain or metal-coated annealed copper, plain aluminium or aluminium alloy, or of Class 5 (flexible) of plain or metal-coated copper in accordance with IEC 60228.

Insulation types covered include PVC, EPR, HEPR and XLPE, thermoplastic  sheathing compounds covered include PVC, Polyethylene and Halogen free, elastomeric sheath compounds covered include Polychloroprene, chlorosulfonated polyethylene or similar polymers.

Single and multicore cables are included as well as cables with concentric conductors, metal sheaths, armoured or unarmoured.

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