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BS 1538:1949 | 9 Feb 1949 | BSI Knowledge
Standard
Withdrawn
BS 1538:1949
Specification. Intrinsically-safe transformers primarily for bell-signalling circuits
Published:
9 Feb 1949
•
Withdrawn:
Date not available
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ICS Codes
29.130.99 Other switchgear and controlgear
29.260.20 Electrical apparatus for explosive atmospheres
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BSI