75. (1) This Part, without prejudice to section 16 of the Act, applies as appropriate to persons who design, install, maintain, use, or are in control to any extent of—

(a) an electrical installation or part of an electrical installation in a place of work, or

(b) an electrical network, including the generation, transformation, conversion switching, controlling, regulating, rectification, storage, transmission, distribution provision, measurement or use of electrical energy at a place of work.

(2) This Part does not apply to—

(a) any electrical equipment or electrical installation used exclusively for electrical testing or research purposes, or

(b) medical electrical equipment,

but persons using equipment referred to in subparagraph (b) shall ensure that the equipment or installation is constructed, installed, maintained, protected and used, with adequate precautions being taken, so as to prevent danger.