Recommendations for supplies operating at voltages up to 650 V. Includes the use of 110 V systems to supply portable and hand held tools and lamps in which the reduced voltage is obtained by means of the transformer units specified in BS 4363.
Original price was: $264.16.$132.00Current price is: $132.00.
Distribution of electricity on construction and building sites
BSI Group , 08/01/1974
Pages: 24
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