Hypertherm HD4070 Rev.1 - Manual (Page 263)

APPENDIX A – SYSTEM GROUNDING
HyPerformance HD4070 Instruction Manual a-3
Figure a-1 Recommended ground connection configuration
Note: Configuration may vary for each installation and may require a different ground scheme.
Plasma power supply
(PE)
(PE)
(PE)
(PE)
Power cord
ground
Ferrite choke
Supplementary
grounding rod
Gas console
Other equipment
receiving power from the
plasma power supply
Ignition console
Work table