5.2.10 Luminaires provided with or designed for use with a supply cord or other external
flexible cable or cord shall have a cord anchorage such that the conductors are relieved from
strain, including twisting, where they are connected to the terminals, and such that their
covering is protected from abrasion. It shall be clear how the relief from strain and the
prevention of twisting is intended to be effected. For luminaires supplied without a cable or
cord, suitable test cables or cords of the largest and smallest sizes recommended by the
luminaire manufacturer shall be used for the tests.
It shall not be possible to push the flexible cable or cord into the luminaire to such an extent
that the cable or cord is subjected to undue mechanical or thermal stress. Methods such as
tying the cable or cord into a knot or tying the ends with string shall not be used.
Cord anchorage shall be of insulating material or be provided with a fixed insulating lining if an
insulation fault on the cable or cord could make accessible metal parts live.