JULY 12.] THE NEW ZEALAND GAZETTE. 2361

PART I.—Regulations prescribing the Conditions on which Licenses may be issued and the Fees payable thereon.

FREQUENCY.

4. The frequency of alternating-current systems shall be 50 complete cycles per second.

SYSTEMS OF SUPPLY.

5. The supply of electrical energy shall be given on one or more of the following systems:—
   (a) Three-phase four-wire system, at a nominal pressure not exceeding 400 volts between phases and 230 volts between each phase and neutral conductor, measured at the consumer’s main switchboard.
   (b) Three-wire system (whether direct-current or single-phase alternating current) at a nominal pressure not exceeding 460 volts between the outer conductors and 230 volts between each outer and intermediate conductor, measured at the consumer’s main switchboard.
   (c) Two-wire system (whether direct-current or single-phase alternating current) at a nominal pressure not exceeding 230 volts measured at the consumer’s main switchboard.
   (d) High or extra-high pressure alternating current single-phase two-wire supply to motors, motor-generators, or transformers, together with a supply from the transformers to a system or systems as defined in paragraphs (b) and (c) of this regulation.
   (e) High or extra-high pressure alternating-current three-phase supply to motors, motor-generators, rotary converters or transformers, together with a supply from the transformers, to a system or systems as defined in paragraphs (a), (b), and (c) of this regulation.
   (f) High or extra-high pressure two-wire direct-current supply to motors and motor-generators.
   (g) Series street-lighting for any pressure not exceeding 3,300 volts between transformer terminals.
   (h) Direct-current supply at a pressure not exceeding 650 volts with the negative pole earthed.
   (i) Such other systems as may be authorized by the Minister.

VOLTAGE OF SUPPLY.

6. (1) For purposes of supply (otherwise than from direct current with the negative pole earthed) not exceeding 2 kilowatts connected load, the nominal pressure shall not (except in the case of motors) exceed 230 volts at the consumer’s main switchboard, and for supply to services exceeding 2 kilowatts connected load and motors of any capacity, the nominal pressure shall not exceed 460 volts at such switchboard.
   (2) Supply for power for industrial purposes may be given at high or extra-high pressure not exceeding 11,000 volts either for transformation or for direct supply to motors: Provided that the transforming apparatus and control gear are so enclosed as to be inaccessible except to authorized persons.
   (3) Supply for series street-lighting may be given for pressures up to but not exceeding 3,300 volts between transformer terminals.
   (4) Supply from direct current (with the negative pole earthed) may be given at a pressure not exceeding 650 volts.

REGULATION OF PRESSURE AND FREQUENCY.

7. (1) The pressure shall be maintained within 5 per cent. above or below the nominal pressure at the consumer’s main switchboard, and on complaint by any consumer that the variation in voltage exceeds the limits specified, or on the instructions of the Inspecting Engineer, the licensee shall connect a portable recording voltmeter to be provided and maintained by the licensee, to record the pressure between the service-lines. If the variations thus recorded are caused within and by the licensee’s system and exceed the above limits the licensee shall take immediate steps to comply with this regulation.
   (2) The frequency shall be maintained within 1½ per cent. above or below the standard of 50 cycles per second.
   (3) This regulation shall not apply to plants which do not supply electrical energy to consumers other than the licensee.

LOCATION OF OVERHEAD LINES.

8. The licensee shall leave one side of each street free for telegraph-lines, and where the street is continuous the licensee’s lines shall be kept to the same side of the street for the whole distance.
9. Except by permission of the Minister of Telegraphs, or subject to an agreement between the Post and Telegraph Department and the licensee, all overhead electric lines shall be placed on the opposite side of the street to that on which any telegraph-lines are erected; and where the erection or operation of the overhead electric lines necessitates an alteration of any existing telegraph-lines, and such alteration is approved by the Minister of Telegraphs, the expense of the alterations shall be borne by the licensee: Provided that where existing telegraph-lines of the Post and Telegraph Department occupy both sides of a street at any place, that Department shall bear the cost of putting all telegraph-lines on the one side of the street, or consent to an arrangement for the joint use of poles on both sides of the street.

FACILITY FOR SERVICE CONNECTIONS.

10. (1) Where electric distribution-lines are on one side of the street and telegraph-lines on the other, and service is required to be given from either to the other side, the licensee and the Minister of Telegraphs shall give to each other reasonable facilities as far as possible to effect supply.
    (2) Where possible, electric service-lines shall pass over telegraph-lines, and telegraph service-lines shall pass under electric lines.

CONDITIONS OF SUPPLY TO CONSUMERS.

11. Every person within the area included in the license to whose premises electrical energy can be supplied from the licensee’s distribution-lines shall be entitled to a supply under the following terms and conditions:—
    (a) Where the length of service-lines inside a consumer’s boundary does not exceed 60 ft. in the case of overhead lines or 20 ft. in the case of underground lines (the distance in each case being measured along the route of the service-lines) such service-lines shall be provided free by the licensee.
    (b) Except where special arrangements in that respect are made between a licensee and a consumer, the licensee shall erect an overhead or underground service-line according to whether his distribution-lines passing the consumer’s premises are overhead or underground.
    (c) If the service-lines are required for a greater distance than 60 ft. or 20 ft. as aforesaid, as the case may be, inside the consumer’s boundary, the consumer may, at the discretion of the licensee, be required to bear the cost of such additional length. Service-lines paid for by the consumer shall remain his property.
    (d) If an additional pole is required owing to the point of attachment to the consumer’s installation being too low to give the overhead clearances prescribed in these regulations over a street without the use of such a pole, the cost of such pole shall be borne by the licensee.
    (e) Where an extension piece on a building or an additional pole or poles are required on a consumer’s premises to give the necessary overhead clearance on the consumer’s premises the cost of such extension piece or additional pole or poles shall, if the licensee so demands, be paid by the consumer. All such poles paid for by the consumer shall remain his property.

12. (1) A consumer or group of consumers to whose premises electrical energy cannot be supplied unless the licensee extends his distribution-lines may demand that the licensee shall so extend such lines and supply electrical energy, and the licensee shall comply with such demand within twelve months after the date thereof—
    (a) If the consumer or group of consumers guarantees to pay the capital cost of such extension in addition to paying at the standard rate for all electrical energy supplied; or
    (b) If the consumer or consumers jointly or separately give to the licensee a guarantee to pay to him in each year not only at the standard rates for all electrical energy actually consumed, but also such additional amount as may be necessary to make the licensee’s total revenue from the extension not more than—
    (i) In respect of a guarantee for not more than one year, 120 per cent. of the capital cost of such extension:
    (ii) In respect of a guarantee for more than one year but not more than two years, 60 per cent. of the capital cost of such extension;
    (iii) In respect of a guarantee for more than two years but not more than three years, 40 per cent. of the capital cost of such extension;
    (iv) In respect of a guarantee for more than three years but not more than four years, 30 per cent. of the capital cost of such extension;
    (v) In respect of a guarantee for more than four years but not more than five years, 24 per cent. of the capital cost of such extension;
    (vi) In respect of a guarantee for more than five years, 20 per cent. of the capital cost of such extension.
    (2) For the purposes of this regulation the capital cost of an extension shall be deemed to include the cost of the provision and erection of all conductors necessary to give a satisfactory supply to the consumers affected by such extension.