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).
Voltage test results for production Maconite H.T. cable.
| Identifier | ExFiles\Box 168\1\ img080 | |
| Date | 22th October 1928 | |
| X3860 To BY.{R.W. Bailey - Chief Engineer} from EFC. c. By EP.{G. Eric Platford - Chief Quality Engineer} EFC3/T22.10.28. PRODUCTION MACONITE H.T. CABLE+ We have conducted voltage tests on seven samples of Maconite H.T. cable (one sample taken from each coil) after immersing in water the central portions of these for 48 hours, the tests being made with the samples so placed. Each sample successfully withstood a pressure of 19,200 volts between core and water for 15 minutes. EFC. | ||