Rough Service Lamp

From International Dictionary of Marine Aids to Navigation
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urn:mrn:iala:dic:2-3-0165

An incandescent lamp so constructed as to withstand mechanical shocks and vibrations.


Note: In the U.S.A., Vibration Service Incandescent Lamp designates a lamp to withstand vibrations while burning.

Reference: C.I.E.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)