S.L. 545.24 Art. 22Earthing systems.

The authorised provider shall ensure that the electrical installation is provided with a suitable and reliable connection to earth by:

(a) providing an independent connection to earth through one (1) or more earth electrodes as deemed appropriate, suitably installed and tested, solidly connected by means of an insulated and mechanically protected copper conductor cable of adequate cross-sectional area to the main earthing terminal to which the protective conductor of the electrical installation shall be connected;

(b) in addition to the requirement in paragraph (a), the electrical installation earthing system may also be connected to the earthing point in a distribution system operator substation supplying the installation, when this is technically feasible.