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).
Continued instruction sheet comparing the performance and durability of different electrical cables.
| Identifier | ExFiles\Box 52\1\ Scan124 | |
| Date | 1st December 1924 | |
| RR 238(150 BKS.) (DB {Donald Bastow - Suspensions} 461-8 12.24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (8) 19 To Order No. WD {Mr Wood / Mr Whitehead} 92 (contd) Customer's No. performance when new, it rapidly deteriorates under service conditions and would require replacing after about 10000 miles. The present std. "Maconite" cable not only gives a good performance new but maintains its initial quality over a long period of running and these tests show that "Maconite" to be definitely superior in the majority of the items in the test specification. The "Helsby" cable is not as good dielectrically as the other three makes of cable or as regards heat and atmospheric resistivity in the case of "Maconite" and "Super Glover". Signed (Contd) This Sheet must be filed on completion of the work. | ||