
Safety Of Power Transformers, Power Supply Units And Similar - Particular Requirements For Control Transformers
出版:National Standards Authority of Ireland

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Applies to stationary or portable, single-phase or poly-phases, air cooled control transformers associated or otherwise, with a rated supply voltage not in excess of 1000 V a.c. or 1415 V ripple free d.c. and rated frequency not in excess of 500 Hz, with not limit to rated output.