BS-EN-61821 › Complete Document History
Electrical installations for lighting and beaconing of aerodromes. Maintenance of aeronautical ground lighting constant current series circuits
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2011 EDITION - aeronautical ground lighting constant current series circuit - Jan. 31, 2012
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Obsolete Revision Information: |
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2003 EDITION - WITHDRAWN, 1/31/2012 - Nov. 28, 2003
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