(1) If the sole or principal use of a carriage service is use by an electricity supply body to carry communications necessary or desirable for:
(a) managing the generation, transmission, distribution or supply of electricity; or
(b) charging for the supply of electricity;
subsection 87(1) does not apply to the service.
(2) In this section:
"electricity supply body" means an authority, or a body corporate, that carries on a business, or performs a function, of:
(a) generating, transmitting, distributing or supplying electricity; or
(b) managing the generation, transmission, distribution or supply of electricity.