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Navigational Lighting for a Pier

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MCSEng

Electrical
Joined
Dec 5, 2008
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12
Location
JM
Anyone know whether there are any Electrical Standards stipulating whether navigational lights on piers should have battery backup to ensure lights are always available in the event of a power outage? Can these be wired to the same branch circuits used to power general lights that are in close proximity?
 
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