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).
Instruction sheet detailing the apparatus required for insulation testing.
| Identifier | ExFiles\Box 24\2\ Scan055 | |
| Date | 20th October 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 88231 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.R. Order No: Customer's No. Re: X1109. Apparatus for Insulation Testing. For the tests specified in the previous report 19-X-20, the following apparatus will be required. ① H.T. Transformers with switchgear as described 21-IX-20. ② Testing stand. To consist essentially of two circular plates of about 1' dia, well faced & rounded off at the edges. One well insulated, the other earthed and adjustable. Suitable terminals arranged to connect to transformers. A 1" tube or rod (metal) should also be provided, capable of being mounted on the (cont'd) Signed This Sheet must be filed on completion of the work. | ||