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 a comparison test of two different specifications of fuse wire.
| Identifier | ExFiles\Box 61\2\ scan0346 | |
| Date | 6th August 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No. P.A.B. Re X.2515 Customer's No. Comparison of Fuse Wires. X.3749 In this test there were two specimens of wire. A.{Mr Adams} A bright tough wire, .005" in dia, 39 S.W.G. B. A duller wire, .013" in dia. 29 S.W.G. They were tested under practically the same conditions as the previous wires, that is, they were surrounded and covered in on top to keep off draughts, and the current raised gradually with pauses in between. Signed Cont'd.{John DeLooze - Company Secretary} This Sheet must be filed on completion of the work. | ||