Layout and cable specifications for various direct current supply circuits.
| Identifier | ExFiles\Box 76\2\ scan0098 | |
| Date | 17th August 1928 | |
| X632 EFC. {E. Fowler Clarke - Electrical Engineer} 17.8.28. EXPL. DEPT. DIRECT CURRENT SUPPLY CIRCUIT. (1 step = 2.5 ft. approx) (1) Royce generator circuit to electrical laboratory. This runs underground for a portion of thw way, and the direction taken is unknown, but an estimate is made. From O.H. to Lab. 550 steps. 19/.080 cable. " tapping to switchboard in lab. 11 steps. 7/.036 cable. (2) B.T.H. generator circuit to electrical laboratory. This wiring is done in a temporary manner, i.e. it is not in tubing. From O.H. to switchboard in lab. 447 steps. Comprising 150 steps of 7/.064 cable. 20 steps of 19/.080 " 277 steps of 19/.048 " (3) Royce generator supply from motor-generator house to tomb. From tapping in M.A.R. to switchboard in tomb. 190 steps. 7/.036 cable. (4) Royce supply from Lab. to Shop. From switchboard in lab. to switchboard to Shop (3 wires) 100 steps. 7/.036 cable. CAP. | ||
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).