Abstract
THE Electrical Reviewof March 29 points out that an amendment has been made by the Standards Association of Australia to its wiring rules, by a provision that the loading of final sub-circuits may be increased if sealed circuit-breakers of an approved type are used in place of fuses. In this case two general purpose socket outlets in a roojn of a dwelling-house can be counted as one if connected with an 8, 12 or 18 ampere final sub-circuit, and any permanently connected appliance rated at 100 watts or less may be counted as a lighting point. It is stated that in many cases the additional cost of the circuit-breaker will be largely offset by the reduction in the number of fuses required. While the Wiring Rules of the Standards Association of Australia differ materially from the Regulations of the Institution of Electrical Engineers, thus precluding the possibility of direct comparison, the value of a circuit-breaker the setting of which cannot be tampered with would in many cases be high.
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Miniature Circuit-Breakers. Nature 145, 548 (1940). https://doi.org/10.1038/145548a0
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DOI: https://doi.org/10.1038/145548a0