The SPIKE Tool - Don't Guess...SPIKE it!
SPIKE Tool information, repair and order
The SPIKE Tool for electrical power cable maintenance


In 1975, Ron Mock, a newly graduated University of Toronto engineer, joined Ontario Hydro (Toronto, Canada - now known as Hydro One). One of his first assignments was to observe field linemen repairing underground electric power cables. This is what he observed. Electrical power to a specific cable was shut off at both ends of the repair site. A trench was dug surrounding the exposed cables. An Amp meter was used to identify that power was shut off between termination points. An experienced guess was made to cut into one of the exposed cables. Without positive assurance that the cable was de-energized the lineman handed Ron the hacksaw and he ended up cutting into the correct de-energized cable. That night, he sat down with his father Phillip, a field supervisor with Ontario Hydro, to design a safety device to further ensure the identified electric power cable was de-energized before cutting. The SPIKE Tool was born in 1976.

Over 10% of SPIKE Tools have been returned since, damaged beyond repair due to spiking an incorrectly identified energized cable. Loss of life or serious injury has been avoided using SPIKE.

Phillip Robert Mock
September 1, 1928 - March 16, 1998. 
Employee: Ontario Hydro from June 1, 1953 - June 30, 1989

Ron Mock, PEng President SPIKE Tool Inc.

Ron Mock worked at Ontario Hydro (Toronto, Canada) from 1975 to 1986. For the first five years Ron worked in the Underground Distribution (0-44kV) and Underground Transmission (115-230kV) Departments. This included field work, design, construction and research.

Ron then worked in the Electrical Engineering Department designing control, shutdown, and power systems (up to 15kV) for Pickering and Darlington Generating Stations. When Ron left Ontario Hydro he was in charge of Nuclear Safety for Pickering Generating Station.

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