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).
Specification detailing a test procedure for machine insulation.

Identifier  ExFiles\Box 168a\3\  img093
Date  30th May 1938 guessed
  
7
-3-
SPECIFICATION;
ELC.13a.

(9) The insulation of the machine should be tested whilst still hot by applying through a low C.P. 200 volt lamp an alternating voltage of 200 between the windings and frame, when the lamp should show no signs of being lighted.

HM{Capt. W. Hallam - Head Repairs}/KC.
  
  


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