This part of EN 61238 applies to insulation piercing connectors for power cables for rated voltages up to 1 kV (Um = 1,2 kV), for example according to HD 603 or other buried cables and cables installed in buildings, having a) conductors complying with EN 60228 having nominal cross-sectional areas between 2,5 mm2 and 300 mm2 for copper and between 16 mm2 and 500 mm2 for aluminium, b) a maximum continuous cable temperature not exceeding the insulation material properties. This document is not applicable to connectors for overhead line conductors nor to connectors with a sliding contact. The object of this document is to define the type test methods and requirements, which apply to insulation piercing connectors for power cables with copper or aluminium conductors. The reference method is to perform the tests on unused insulated conductors.