Regulation 22 Precautions against excess voltage
The supplier shall make arrangements which ensure, so far as is reasonably practicable, that—
(a)
every low voltage electric line shall be protected against danger arising from accidental contact with or leakage from any high voltage electric line; and
(b)
where energy at a higher voltage is transformed no danger shall be caused as a result of a system at a lower voltage becoming charged above its normal voltage by leakage from or contact with the supplier’s system at the higher voltage.