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).
Substituting earth connections with a double wiring system, particularly for ship work, due to high voltage and sea water exposure.
| Identifier | ExFiles\Box 124\3\ scan0048 | |
| Date | 9th June 1919 | |
| Contd. -2- R2/G9.6.19. voltage used is much higher, and the wiring and earth connections are so enormously complicated, and subject to sea water, that one would conceive that a double system of wiring (at least part) would soon be substituted for the earth connections. I always used the double wiring arrangement on ship work that was done by the company I was with in quite the early days of 1884. R.{Sir Henry Royce} | ||