server rack
- Thread starter boatfull
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Well if the EGC of any of those components bonds the equipment frame to the chassis equipment then there is no other NEC requirement for bonding. If the equipment is DC powered and/or the AC powered equipment is isolated from the equipment frame then there will be a requirement for a fault clearing path via a frame ground bonding conductor aka Frame Ground and other various names.
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if the equipment being set on the rack has rubber grommets on the bottom or the equipment is painted along with the server rack having paint on it then the equipment being set on it along with the server being painted would have to have the paint removed to ensure a quality bond?
- Location
- New Jersey
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- Journeyman Electrician
Dereck, where would you find that NEC requirement? Does this go beyond likely to become energized?
Like I said if the equipment is isolated, then you would need a supplemental bond to the equipment rack. FWIW it is common practice in data center to run what is called a frame ground bus, or FGB. It is used to bond the equipment frames.
Not sure I quite understand your question Rob. If the AC powered equipment is mounted in the equipment rack it has a EGC that comes with the circuit that bonds the equipment rack.
If you are talking about DC power like 48 volts, we use the frame ground conductor as the fault clearing path because there is no EGC ran with the DC circuit conductors.
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