1 Scope
This section of BS 7870 specifies requirements for the construction, dimensions and mechanical and electrical
properties of 19/33(36) kV single-core cables having either aluminium or copper conductors,
cross-linked polyethylene (XLPE) extruded insulation, a lead alloy sheath and a medium
density polyethylene (MDPE) oversheath.
This section of BS 7870 is applicable to cables that are designed for a maximum continuous conductor operating
temperature of 90 °C and for a maximum short-circuit conductor temperature of 250 °C.
NOTE Information to be supplied by the purchaser, and items to be agreed between the purchaser
and the manufacturer at the time of enquiry and/or order are given in Annex B. Guidance on type testing is given in Annex C.