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BS 2538:1954
Specification for air-cooled flameproof single-phase lighting transformer units supplied from high voltage systems
8 стр.
Печатная копияПечатное издание
130.03 £ (включая НДС 20%)
29.180 Transformers. Reactors / Трансформаторы. Реакторы29.260.20 Electrical apparatus for explosive atmospheres / Электрическое оборудование для взрывоопасной атмосферы
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.
Ключевые слова:
Lighting equipment, Electrically-operated devices, Transformers, High-voltage equipment, Single-phase transformers, Earthing, Cable junctions, Electric connectors, Isolator switches, Fuses, Marking, Marks, Mining equipment, Type d protected electrical equipment, Dry-type transformers