In engineering shorthand, the phrase normally points to a thermosetting XLPE-insulated, PVC-bedded, galvanised steel-wire-armoured and PVC-oversheathed cable for fixed installation. The standard is broader than the shorthand: it covers both 600/1000 V and 1900/3300 V rated cables, and the single-core AC arrangement is normally treated with non-magnetic aluminium wire armour rather than steel wire armour.