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).
Instructions for examining and testing a dynamo's insulation, components, and end cover fit.
| Identifier | ExFiles\Box 62\3\ scan0407 | |
| Date | 13th December 1933 guessed | |
| -5- (9) Examine also for rubbing armature, slack bearings, cracked insulation and final conditions of commutator and brush surfaces, and see also that with the dynamo hot the end cover can be easily put on and taken off. (10) The insulation of the machine should be tested whilst still hot by applying through a low C.P. 200 volt lamp and alternating voltage of 200 between the windings and the frame, when the lamp should show no signs of being lighted. Hs{Lord Ernest Hives - Chair}/Pgt. | ||