BS 2538:1954
$86.31
Specification for air-cooled flameproof single-phase lighting transformer units supplied from high voltage systems
| Published By | Publication Date | Number of Pages |
| BSI | 1954 | 8 |
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.
