BS 7870-3.50:2023
Tracked Changes. LV and MV polymeric insulated cables for use by distribution and generation utilities. Distribution cables of rated voltage 0.6/1(1.2) kV. Specification. XLPE insulated, copper wire waveform or helical concentric cables with solid

Scope: This part of BS 7870 specifies the construction, dimensions and mechanical and electrical property requirements for XLPE insulated, concentric copper wire screened corrugated or spiral cables rated at 0.6/1 (1.2) kV. It applies to cables which, when evaluated by specified tests, produce reduced levels of smoke and corrosive gases when exposed to fire than cables complying with BS 7870-3.40. Requirements are specified for the following types of cables: 　•3 core, 3 phase, XLPE insulated, copper concentric neutral/earth conductor on a synthetic bedding and thermoplastic outer sheath; 　•4 core, 3 phase and separate neutral, XLPE insulated, copper concentric earth conductor on a synthetic bedding and thermoplastic outer sheath. This part applies to cables designed for a maximum continuous conductor working temperature of 80°C and a maximum short-circuit conductor temperature of 250°C.

BS 7870-3.50:2023 Referenced Document

BS 7870-1:2011+A1:2022 LV and MV polymeric insulated cables for use by distribution and generation utilities - General (Implementation of HD 603, 605, 620, 626 and 627)
BS 7870-2:2022 LV and MV polymeric insulated cables for use by distribution and generation utilities. Methods of test (Implementation of HD 605 S3:2019)
BS EN 60228 Conductors of insulated cables
BS EN 60332-1-2:2004+A12:2020 Tests on electric and optical fibre cables under fire conditions - Test for vertical flame propagation for a single insulated wire or cable. Procedure for 1 kW pre-mixed flame
BS EN 60332-3-24:2009 Tests on electric and optical fibre cables under fire conditions - Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C
BS EN 60754-1 Test on gases evolved during combustion of materials from cables - Determination of the halogen acid gas content
BS EN 61034-2 Measurement of smoke density of cables burning under defined conditions - Test procedure and requirements
BS EN ISO 6892-1 Metallic materials. Tensile testing. Method of test at room temperature

2023 BS 7870-3.50:2023 Tracked Changes. LV and MV polymeric insulated cables for use by distribution and generation utilities. Distribution cables of rated voltage 0.6/1(1.2) kV. Specification. XLPE insulated, copper wire waveform or helical concentric cables with solid
0000 BS 7870-3.50:2011(2012)
2011 BS 7870-3.50:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for distribution cables of rated voltage 0.6/1 kV. XLPE insulated, copper wire waveform or helical concentric cables with solid aluminium conductors, havi
2005 BS 7870-3.50:2005 LV and MV polymeric insulated cables for use by distribution and generation utilities - Specification for distribution cables of rated voltage 0.6/1 kV - XLPE insulated, copper wire waveform or helical concentric cables with solid aluminium conductors, ha