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).
Positive side of an electrical circuit and its protection.
| Identifier | ExFiles\Box 61\2\ scan0393 | |
| Date | 6th September 1920 | |
| R.R. 285A (100 T) (S.H 159, 11-8-20) G 2800 Contd. -2- R7/C6.9.20. the positive bus bar of the positive side of the circuit, so that when all the switches are in the "off" position and all the fuses removed, the whole of the circuits will be at the potential of the frame of the car, so that one gets the maximum protection that it is possible to obtain without definitely detaching the battery, which appears so very undesirable with a constant current type of dynamo. The arrangement also facilitates the ease of understanding the circuits, and of testing the insulation in case of a fault occurring. R.{Sir Henry Royce} | ||