This British Standard gives generic definitions applicable to the BS 7888 series.
BS 7888-1:1998 history
2015BS EN 50393:2015 Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kV
2006BS EN 50393:2006 Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kV
1998BS 7888-1:1998 LV and MV accessories for power cables with rated voltage from 0.6/1 kV (Um=1.2 kV) up to and including 20.8/36 kV (Um=42 kV) - General