• BS 2538:1954

BS 2538:1954

Specification for air-cooled flameproof single-phase lighting transformer units supplied from high voltage systems

BSI Group , 11/25/1954

Publisher: BS

File Format: PDF

$80.00$160.02


Transformer units for supply voltages of 2200, 2750 or 3300 volts with ratings of 2.5 kVA and 5 kVA mainly for roadway lighting in mines. It specifies standard voltages, ratings, provision for earthing, primary isolating switch, protective fuses, particulars of temperature limits and a series of tests.Cross References:BS 88BS 171BS 229BS 542

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