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Negligible voltage loss in headlamp wiring.


Identifier  ExFiles\Box 168b\2\  img217
Date  17th February 1931
  
PH.
c. Wor. {Arthur Wormald - General Works Manager}
c. Hs. {Lord Ernest Hives - Chair}
Y6082.

BY5/G.17.2.31.

RE HEADLAMP WIRING.
-------------------

Referring to PN {Mr Northey} 1/PH.10.2.31. we do not agree that there is any measurable loss of voltage due to the sectional area of the wiring used for the lamps. We have tried this out on a chassis by taking voltages with lamps on, directly at the battery terminals and then at the head-lamp terminals, and find that the drop on voltage is :-

Battery Voltage 13.2
Headlamp " 13.0

a drop which you will agree is quite negligible.

BY. {R.W. Bailey - Chief Engineer}
  
  
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).


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