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 insulation testing procedures.
| Identifier | ExFiles\Box 24\2\ Scan047 | |
| Date | 24th January 1919 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 88223 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To ___________ Order No ___________ Customer's No. ___________ Re Insulation Testing (Cont'd) ② Soak in water for 24 hours. Remove surface moisture & test breakdown. ③ Dry at 100°C. weighing until steady. Note absorption by weight. test breakdown. Observe mechanical properties as for paper. ④ Immerse in mineral oil for several hours, noting from time to time, any signs of solubility of treatment. ⑤ For tapes, note also breaking strain by suspending weights. ⓒ Mica & Micanite. ① For general purposes, weigh sample, (Cont'd) Signed ___________ This Sheet must be filed on completion of the work. | ||