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 detailing the fusing current for a No. 19 swg Tin-lead fuse in a Lucas Junction Box.
| Identifier | ExFiles\Box 61\2\ scan0355 | |
| Date | 19th August 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 X. 2575 91327 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.T.C. Order No X 8564 Customer's No. TC. 3. Re Fusing Current of fuse in Lucas Junction Box This fuse (No 19 swg Tin-lead) goes at 20.5 Amperes. when in place in the Lucas junction box. Fuse length .60". Signed This Sheet must be filed on completion of the work. | ||