System of Electrification.
58. We have not considered it necessary to go into technical details in connection with the choice of the most suitable system of electrification, in view of the fact that such questions were fully investigated by the Committee appointed in 1927 under the Chairmanship of Sir
John Priugle. This Committee reported in 1928 in favour of two alternative standard systems which are, in substance-Direct Current overhead with a maximum pressure of 1,500 volts and Direct Current third rail with a maximum pressure of 750 volts. The possible use of 3,000 volts Direct Current on the overhead system was also admitted; none of the expert evidence which has been submitted to us has questioned these recommendations, and we have assumed that they will be followed.
In the investigations made on our behalf our Consulting Engineers and the Railway Officers concerned selected the 1500 volts overhead system
