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).
Test report on the fusing currents of copper fuses in a PR Distribution Box.
| Identifier | ExFiles\Box 61\2\ scan0416 | |
| Date | 9th November 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 X.2575 88240 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFC Order No: 21 Re: X 2515 Customer's No.: 1 9 - XI - 1920 Fusing Currents of Copper Fuses in PR Distribution Box. X. 4173 The fusing points of various copper wires in the RR Junction Box [double wiring] have been noted, by passing gradually increasing currents from a battery. Each gauge was fitted to the five clips, which were blown in succession, the average being taken. Gauges still required for this test. 29, 30, 31, 33, 35, 36, 37, 38. Inst 22596 with 150 amp shunt was used for measuring the currents. (Cont'd) Signed This Sheet must be filed on completion of the work. | ||