Historical information
Report titled "Ropes - Trolley", dated October 1954 though has a date stamp on the first page of the report itself of 26/10/1955, prepared by the MMTB Testing Department, Report No. R7/1/43. Looks at the insulation resistance offered by trolley ropes when dry and wet, new and used ropes and the possibility of causing electric shocks. Gives a reference to a previous August 1952 test. Undertook examination of the ropes, electrical measurements and electrical measurements of the human body. Has a number of appendices and details the test results.
Significance
Demonstrates a MMTB Laboratory investigation into trolley rope and electrical characteristics.
Physical description
Report - typed carbon copy - 13 foolscap sheets stapled within a brown card folder bound with red adhesive tape.