BS 3535-2:1990 Isolating transformers and safety isolating transformers. Specification for transformers for reduced system voltage (AMD 6881) (AMD 9330) (Withdrawn)
Requirements for stationary or portable, single-phase or polyphase, air-cooled reduced system voltage transformers having a rated supply voltage not exceeding 1000V and a rated output not exceeding 25kVA single-phase or 40kVA polyphase.
Replaces BS 3535:1962, BS 3052:1958 and BS 4435-1:1969. Replaced by BS EN 61558-1:1998 and BS EN 61558-2-23:2001.
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