22548-1911-Supplementary-Bills-read-a-first-time--Widows-and-Orphans-Pension-Amendment-No-2- — Page 3

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Pressure of supply to

consumers.

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(c.) Where the conditions of the supply are such that the pressure exceeds 650 volts but does not exceed 3,000 volts, the supply shall be deemed a high pressure supply; and

(d) Where the conditions of the supply are such that the pressure exceeds 3,000 volts, the supply such be deemed an extra high pres- sure supply.

Where these regulations require any metallic body to be "efficiently connected with earth", it shall be con- nected with the general mass of earth in such manuer as will ensure at all times an immediate and safe dis- charge of electrical energy.

General.

2. The pressure of a supply delivered to any consider shall not exceed the limit of low pressure, except for special purposes, for which a medium pressure supply may be given on the consumer undertaking to comply with the following conditions :----

(a.) Where the supply is for power purposes.

(1) The frame of every electric motor shall be

efficiently connected with earth.

(2.) The consumer's wires forming the connections to motors, or otherwise in connection with the supply, shall be, as far as practicable, completely enclosed in strong metal casing efficiently connected with earth, or they shall be fixed in such a manner that there shall be no danger of any shock.

(3.) The supply to every motor shall be controlled by means of an efficient cut-off switch, placed in such a position as to be easily handled by the person in charge of the motor, and con- nected so that by its means all pressure can be cut off from the motor itself, and from any regulating switch, resistance or other device in connection therewith.

(4.) Switches, efficient fuses or other automatic circuit-breakers shall be provided, so as to protect the circuits from excess of current, and all switches and cut-outs shall be so enclosed and protected that there shall be no danger of any shock being obtained in the ordinary handling thereof, or of any fire being caused by their normal or abnormal action. (5.) A notice shall be fixed in a conspicuous position at every motor and switch board in connection with the supply forbidding un- authorised presons to touch the motors or apparatus.

(6.) Where the supply is for are lamps in series-

(1) The consumer's wires forming the connec--

tions to the arc lamps, or otherwise in connection with the supply, shall be, as far as practicable, completely enclosed in strong metal casing efficiently connected with earth, or they shall be fixed in such a manner that there shall be no danger of any shock. (2.) The supply to every arc lamp shall be con- trolled by means of an efficient cut-off switch, placed in such a position as to be easily handled by the person in charge of the are lighting, and connected so that by its means all pressure can be cut off from the arc lamp itself, and from any regulating switch, resist- ance or other device in connection therewith. Provided that where the arc lamps are con- neeted in series across the outer conductors of a three-wire system, it shall be sufficient if one such switch be provided for each series of are lamps.

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