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).
Instructional document detailing the comparison test conditions for three different types of fuse wire.
| Identifier | ExFiles\Box 61\2\ scan0340 | |
| Date | 2nd August 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 91150 X.2515 To E.F.C. Order No P.A.4. Customer's No. Re X August 2nd 1920. Comparison of Fuse Wires. For convenience, the three wires, i.e. the specimen from London, the small bundle supplied by you, and those from the fitting shop, are called A, B, and C respectively. Each test was carried out under the same conditions. The fuse was surrounded, to prevent, as near as possible, cooling draughts; they were approximately the same length, and the current was raised by .1 amps Signed Cont'd.{John DeLooze - Company Secretary} This Sheet must be filed on completion of the work. | ||