EL ctricity Supply. Type of supply. Charge. rirst Schedule. SecondI Schedule. (;. (1) The voltage of electricity supplied for domestic or lighi ing purposes shall Ie 240 volts and this shall be maintained by the Company within plus -V4 and minus 8" (measured at the consuiier's terminals) of such voltage. (2) The frequelty of electricity supplied for any pur- pose shall be 50 cycles per second and this shall be maintained within plus and minus 31/ of suih frequency. (:2) The systems of distribution of electricity shall be 3 plh se 4 wire for 400 volts between lines and 230 volts between lines and neutral, alnd/lor single phase 2 wire for 230 volts be- tw on lies with one line earthed and designated "the neutral", all or any of such systents to be used, the choice in any par- ticular ,aise being by the Company according to load conditions and the most economical method of supply: provided that any consumein' may by agreement with the Company be supplied with electricity at a voltage in excess of 400 volts and step this down in his owin transformers to any voltage for the time being ap- proved by the Government Electrical Inspector. (I) 11 shall be the dulty of the Company to take all prae- ti.;lb)le te(ps to ensure that tie supply of electricity to any consm n. r shall be regular and efficient. ()) Overhead pow,'r line design shall bh' at the Com- pany's option, but ]hall comply with the approved British Stan- dard in force at the time of construction. 7. (1) Subject as hereinafter provided the Company shall be evitil d to (:haii:e for electricity supplied at its tariff rates for the time being ii force; for the avoidance of doubt it is here- by declared that the tariff rates for the time being in force in a'i part of the State may be at different rates from those then in for.-e in any other part of the State. (2) Subjecl to the provisions of sub-sections (3) to (8) of this s (tion, the inariff rates in the Island of Saint Vincent applicable to electricity the consumption of which is measured li) reading of meters carried out after the Appointed Day will be the rates set oul in Part I of the First Schedule hereto and the tariff rates in the Island of Bequia so applicable will be the rates set out in the S'econd Schedule hereto; subject as afore- said, the tariff rales in any ]sland of Saint Vincent in the Grenadiies applicable to electricity the consumption of which is meIasured by reading of nmelers carried out on or after the -late, when, in accordance with any Order made by the Gov- ernor under section 31, the provisions of this Act are applied No. 14. 1973.