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).
Instruction note discussing the properties and current carrying capacity of different classes of wire or fuse.
| Identifier | ExFiles\Box 61\2\ scan0343 | |
| Date | 2nd August 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 91153 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No. PA.{Mr Paterson}H Customer's No. Re x August 2nd 1920 brighter, tougher, and the fact that it fuses cleaner, besides its higher capacity for apparently the same gauge, appears to be tin wire, or to have a larger percentage of tin than the others. Those in class C may be of a third variety, or may simply be a bit newer than those in B, which would perhaps account for the slightly higher current carrying capacity. Signed E.A.P. This Sheet must be filed on completion of the work. | ||