An employer must cause enclosed premises housing switchgear and transformers -
- to be of an ample size so as to provide clear working space for operating and maintenance staff;
- to be sufficiently ventilated to maintain the equipment at a safe working temperature;
- to be constructed so as to be proof against rodents, leakage, seepage and flooding;
- to be provided with lighting that will enable all equipment, thoroughfares and working areas to be clearly distinguished and all instruments, labels and notices to be easily read;
- to have doors or gates, which can be readily opened from the inside, opening outwards;
- to be provided with fire extinguishing appliances or systems which are suitable for use on electrical machinery and which are maintained in good working order: and
- to be of such construction that persons cannot reach in and touch bare conductors or exposed live parts of the electrical machinery.