* an isolation transformer - meaning you must now touch both conductors to get shocked instead of just the live one
* a foot switch to control the power supply - serves as a "dead man's switch" to cut power in case of an accident
(these are not mutually-exclusive, you can combine them)
* an isolation transformer - meaning you must now touch both conductors to get shocked instead of just the live one
* a foot switch to control the power supply - serves as a "dead man's switch" to cut power in case of an accident
(these are not mutually-exclusive, you can combine them)