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).
Page from a test procedure detailing electrical and physical inspection steps.
| Identifier | ExFiles\Box 163\6\ img271 | |
| Date | 27th February 1933 guessed | |
| -2- These readings should lie between the limits 1.20 and 1.25 volts and 4.87 and 4.97 volts respectively. (3) The current should then be raised to 2.0 amperes at which value it should be maintained for 5 minutes. (4) At the end of the above test examine the ends of the wire where they pass under the rivets and ascertain that they are sound. The porcelain holder should also be examined for cracks, and the rivets for looseness. | ||