BS 7870 – LV and MV (Medium Voltage cables) polymeric insulated cables for use by distribution and generation utilities. This standard implements the nationally applicable elements of harmonization Documents HD 603, 605, 620, 626 and 627, published by the European Committee for Electrotechnical Standardization (CENELEC).
BS 7870 applies to cables for fixed installations having a rated voltage U/Uo up to and including 19/33 kV, there are 8 Parts and 17 Sections each containing details of a particular type of cable.
BS 7870 Part 1 General contains the Scope, Normative references, Generic Terms and Definitions it also specifies the frequency of sample tests applicable to the cables included in this British Standard series of standards.
Annex A, which is informative, contains useful information on the selection and use of these cables. Annex B, which is normative, details the requirements for the insulations and oversheath materials included in BS 7870.
The individual Parts and Sections contain the detailed information required to manufacture and test the types of cables they contain; see below for additional information.