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).
Standardization of electrical fuses to a single gauge copper wire type.
| Identifier | WestWitteringFiles\E\September1920\ Scan5 | |
| Date | 8th September 1920 | |
| To EFC. from R.{Sir Henry Royce} Copy to CJ. " " PN.{Mr Northey} " " BN.{W.O. Bentley / Mr Barrington} " " HS.{Lord Ernest Hives - Chair} " " DA.{Bernard Day - Chassis Design} " " BY.{R.W. Bailey - Chief Engineer} X.2515 ORIGINAL. RE ELECTRICAL FUSES ON 6 EX. ETC. X3760 X3553 X.3923B You will realise that we want all fuses on R.R. installation to be of copper. I cannot attempt to alter the Lucas type, but the R.R. type should be suitable for copper wire. They should be all of one gauge, sufficiently small in the case of a fault to prevent disastrous shorts, but large enough to carry the maximum current any of the circuits require. I do not think anybody (on electrical installation on a car) can be expected to fit various sizes of fuse wire, even if they were of the cartridge type, or various sizes of fuses. I have not seen a car installation where the cartridge type could be applied, and cannot see that there is any very serious difficulty in providing suitable instructions and supplies of the right size of wire to use, so that a replace should be a very easy one to carry out, if arranged with R.R. fuse and above particulars. The instructions and supply of fuse wire should be inside the lid{A. J. Lidsey} of the distribution box board, or somewhere equally handy. and glass manifest. R.{Sir Henry Royce} [Signature] | ||