SWA

Illustrated explanation

Where armour is held and bonded

4SWA
Wire armour termination sectionA section through a wire-armoured cable entry. Callout 1 is the armour cone beneath the prepared wires, 2 is the mating clamp above them, 3 is an earth tag beside the enclosure wall and 4 is the steel wire armour. Retention and the complete electrical path require separate verification. Current term: SWA, callout 4. 1 2 3 4 Inner coveringPanel
  1. Armour cone

    The cone supports the prepared armour wires. Its shape and orientation must match the mating clamp and cable.

  2. Armour clamp

    The mating part captures the armour against the cone. Retention and electrical continuity need separate confirmation.

  3. Earth tag

    The conductive tag has a connection point for a bonding conductor. Verify the complete path and connection duty.

  4. SWAThis term

    Steel wires surround the inner covering. Measure the wire and armour dimensions needed by the selected gland.

Prepared steel armour wires sit between a cone and its mating clamp. An earth tag provides a separate connection point for the required bonding conductor.

Conceptual cone-and-clamp section for wire armour. Cable preparation, orientation, retention and fault-current duty require the actual gland instructions.

ReferencesBS 6121-1:2005 — Mechanical cable glands and armour glandsIEC 62444:2010 — Cable glands for electrical installationsIEC Electropedia — the world’s online electrotechnical vocabulary