Switchgear and all terminals, cable ends, cable joints and connections to apparatus shall be totally enclosed and shall be constructed, installed and maintained as to comply with the following requirements, namely: –
(i) all parts shall be of mechanical strength sufficient to resist rough usage;
(ii) all conductors and contact areas shall be of adequate current-carrying capacity and all joints in conductors shall be properly soldered or otherwise efficiently made;
(iii) the lodgement of any matter likely to diminish the insulation or affect the working of any switchgear shall be prevented;
(iv) all live parts shall be so protected or enclosed as to prevent persons accidentally coming into contact with them and to prevent danger from arcs, short-circuits, fire, water, gas or oil;
[भाग III—खण्ड 4] भारतकाराजपत्र:असाधारण 137
(v) where there may be risk of igniting gas, coal-dust, oil or other inflammable material, all parts shall be so protected as to prevent open sparking; and
(vi) every switch or circuit-breaker shall be so constructed as to be capable of opening the circuit it controls and dealing with any short-circuit without danger.