3. In this Part—
“the 1973 Act” means the [1973 c. 41] Fair Trading Act 1973;
“the 1980 Act” means the [1980 c. 2] Competition Act 1980;
“authorised area”, in relation to a person authorised by a licence under sub-paragraph (b) or (c) of Article 10(1) to transmit or supply electricity, means so much of the area designated as such in the licence as is not for the time being designated in a subsequent licence under that sub-paragraph;
“electrical plant” means any plant, equipment, apparatus or appliance used for, or for purposes connected with, the generation, transmission or supply of electricity, other than—
an electric line;
a meter used for ascertaining the quantity of electricity supplied to any premises; or
an electrical appliance under the control of a consumer;
“electric line” means any line which is used for carrying electricity for any purpose and includes—
any support for any such line, that is to say, any structure, pole or other thing in, on, by or from which any such line is or may be supported, carried or suspended;
any apparatus connected to any such line for the purpose of carrying electricity; and
any wire, cable, tube, pipe or other similar thing (including its casing or coating) which surrounds or supports, or is surrounded or supported by, or is installed in close proximity to, or is supported, carried or suspended in association with, any such line;
“exemption” means an exemption under Article 9;
“extension” in relation to a generating station, includes the use by the person operating the station of any land (wherever situated) for a purpose directly related to the generation of electricity by that station;
“final order” means an order under Article 28 other than a provisional order;
“generating station”, in relation to a generating station wholly or mainly driven by water, includes all structures and works for holding or channelling water for a purpose directly related to the generation of electricity by that station;
“high voltage line” means an electric line of a nominal voltage exceeding 110 kilovolts; and “low voltage line” shall be construed accordingly;
“information” includes accounts, estimates and returns;
“licence” means a licence granted under Article 10;
“licence holder” means the holder of a licence granted under Article 10;
“line” means any wire, cable, tube, pipe or other similar thing (including its casing or coating) which is designed or adapted for use in carrying electricity;
“the Monopolies Commission” means the Monopolies and Mergers Commission;
“notice” means notice in writing;
“premises” includes any land, building or structure;
“private electricity supplier” means a person, other than a public electricity supplier, who is authorised by a licence or exemption to supply electricity;
“provisional order” means an order under Article 28 which, if not previously confirmed in accordance with paragraph (4) of that Article, will cease to have effect at the end of such period (not exceeding 3 months) as is determined by or under the order;
“public electricity supplier” means any person who is authorised by a licence under Article 10(1)(c) to supply electricity except where he is acting otherwise than for purposes connected with the supply of electricity to premises in his authorised area;
“relevant condition”, in relation to a licence holder, means any condition of his licence;
“relevant requirement”, in relation to a licence holder, means any duty or other requirement imposed on him by or under Article 12 or Articles 19 to 26;
“supply”, in relation to electricity, means supply through electric lines otherwise than to premises occupied by a licence holder for the purpose of carrying on the activities which he is authorised by his licence to carry on;
“tariff customer” means a person who requires a supply of electricity under Article 19 and is supplied by the public electricity supplier otherwise than on the terms specified in such an agreement as is mentioned in Article 25(1);
“transferred provision” has the meaning assigned to it by section 1(g) of the [1954 c. 33 (N.I.)] Interpretation Act (Northern Ireland) 1954;
“transmit”, in relation to electricity, means transmit by means of a transmission system, that is to say, a system which consists (wholly or mainly) of high voltage lines and electrical plant and is used for conveying electricity from a generating station to a substation, from one generating station to another or from one substation to another;
“working day” means any day other than a Saturday, a Sunday, Christmas Day, Good Friday or a day which is a bank holiday within the meaning of the [1971 c. 80] Banking and Financial Dealings Act 1971.