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Standard Overview
BS 6622 specifies requirements for thermosetting insulated electric cables for rated voltages from 3.8/6.6kV up to 19/33kV. It covers medium voltage power cables with XLPE insulation, copper or aluminum conductors, and protective sheath systems for electrical distribution applications.
The standard is widely used for medium voltage power networks, industrial facilities, and infrastructure projects, particularly in markets following British Standards.
Key Requirements
Conductor: Copper or aluminum conductors according to BS EN 60228
Insulation: XLPE (Cross-Linked Polyethylene) thermosetting insulation
Screening: Metallic screen with copper wires/tape according to design requirements
Armouring: Optional steel wire armour (SWA) or aluminum wire armour (AWA)
Voltage Rating: 3.8/6.6kV, 6.35/11kV, 12.7/22kV, and 19/33kV
Applications
Used for medium voltage distribution networks, underground power systems, industrial plants, renewable energy projects, and utility infrastructure.
Related Standards
IEC 60502-2 — Power cables with extruded insulation for medium voltage applications
IEC 60228 — Conductors of insulated cables
IEC 60332 — Tests on electric cables under fire conditions
BS 5467 — Thermosetting insulated armoured cables for low voltage applications
IEC 60332 — Tests on electric cables under fire conditions
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