An employer may only allow the use or permit the use of a portable light where the operating voltage exceeds 50 V if -
- it is fitted with a substantial handle which is made of non-hygroscopic, non-conducting material;
- all live metal parts or parts which may become live owing to a faulty circuit are completely protected against accidental contact;
- the lamp is protected by means of a substantial guard firmly fixed to the insulated handle; and - the cable lead-in is such that the insulation can withstand rough use.