Electricity Supply.
(b) where the supply is for arc lamps in series—
(i) the consumer's wires forming the connexions to the arc lamps, or otherwise in connexion with the supply, shall be, as far as practicable, completely inclosed 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;
(ii) the supply to every arc lamp 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 arc lighting, and connected so that by its means all pressure can be cut off from the arc lamp itself and from any regulating switch, resistance or other device in connexion therewith: Provided that where the arc lamps are connected 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 arc lamps;
(iii) switches, efficient fuses or other automatic cut-outs shall be provided, so as to protect the circuits from excess of current, and all switches and cut-outs shall be so inclosed 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;
(c) where the supply is for incandescent lamps in series, unless the Director of Public Works otherwise allows—
(i) the consumer's wires forming the connexions to the incandescent lamps, or otherwise in connexion with the supply, shall be completely inclosed in strong metal casing and this casing together with the switches and lamp holders, if metallic, shall be efficiently connected with earth;
(ii) switches, efficient fuses or other automatic cut-outs shall be provided, so as to protect the circuits from excess of current, and all switches and cut-outs shall be so inclosed 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 action.
179
[CAP. 103
Electricity Supply.
(b) where the supply is for arc lamps in series—
(i) the
the consumer's wires forming the con- nexions to the arc lamps, or otherwise in connexion with the supply, shall be, as far as practicable, completely inclosed 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;
(ii) 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 arc lighting, and connected so that by its means all pressure can be cut off from the arc lamp itself and from any regulating switch, resistance or other device in connexion therewith: Provided that where the arc lamps are connected in series across the outer conductors of a three-wire system, it shall be suffi- cient if one such switch be provided for each series of arc lamps;
(iii) switches, efficient fuses or other automatic cut-outs shall be provided, so as to protect the circuits from excess of current, and all switches and cut-outs shall be so inclosed 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;
(c) where the supply is for incandescent lamps in series, unless the Director of Public Works other- wise allows
(i) the consumer's wires forming the con- nexions to the incandescent lamps, or otherwise in connexion with the supply, shall be completely inclosed in strong metal casing and this casing together with the switches and lamp holders, if metallic, shall be efficiently connected with earth;
(ii) switches, efficient fuses or other automatic cut-outs shall be provided, so as to protect the circuits from excess of current, and all switches and cut-outs shall be so inclosed 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 action.
179
[CAP. 103
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