Significance

Yields information about power supply in cables in Ballarat and heating effects.

Physical description

Carbon copy of a typed note or chart giving information about the “Maximum Permissible currents for 6kV and 415V – armoured cables laid direct in ground. Dated 21/7/1942, with initials W.M in top left hand corner.



BTPS Number "220"

Inscriptions & markings

Has “220” in biro in bottom right hand corner and “T/1” in red pencil in top left hand corner.