Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Test results for wire and cartridge type fuse burnout currents at various gauges.

Identifier  ExFiles\Box 166\7\  img017
Date  27th May 1933 guessed
  
-4-

Under the following conditions the wire burnt-out after carrying a current for ½ min.

30 S.W.G. 36.6 amperes.
32 S.W.G. 28.0 "
34 S.W.G. 23.0 "
36 S.W.G. 15.0 "

All the above tests were carried out under the conditions stated above.

Cartridge Type fuses.

fusing currents for various gauges of wire

30 S.W.G. 24.0 amperes.
32 S.W.G. 19.1 "
34 S.W.G. 13.5 "
36 S.W.G. 9.0 "

Wire burnt out after carrying current for ½ min.

30 S.W.G. 20.5 amperes.
32 S.W.G. 17.1 "
34 S.W.G. 12.6 "
36 S.W.G. 7.5 "
  
  


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