More Incorrect Graphics

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mbrooke

mbrooke

Batteries Included
Location
United States
Occupation
Technician
Came across another site instantiating that a ground rod opens a breaker. No main bonding jumper pictured. Apprentices be like "educated".


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Three Phase Electrical Wiring Installation in Home - NEC & IEC

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If this is in a separate strucuture and the EGC bus is bolted to the enclosure is there an issue?
 
infinity said:
If this is in a separate strucuture and the EGC bus is bolted to the enclosure is there an issue?
Click to expand...

It all implies that these are service panels and they should have mentioned sub panels also and the distinction. It's a gross error to not show the bonding between the EGC bus and the neutral when mentioning the NEC.

This is a typical explanation of foreign electrical systems by foreigners and on a non-electrical site to boot. Maybe they don't bond the neutral to EGC over there.

-Hal
 
hbiss said:
It all implies that these are service panels and they should have mentioned sub panels also and the distinction. It's a gross error to not show the bonding between the EGC bus and the neutral when mentioning the NEC.

This is a typical explanation of foreign electrical systems by foreigners and on a non-electrical site to boot. Maybe they don't bond the neutral to EGC over there.

-Hal
Click to expand...


They tend to use TT earthing which relies on RCD breakers protecting all circuits and tripping on a ground fault. So it is technically accurate for them. For the US and those which use TN supplies not so much.
 
infinity said:
If this is in a separate strucuture and the EGC bus is bolted to the enclosure is there an issue?
Click to expand...
Noticing in above picture of original poster, the term "feeder" is clearly being used, in termination of 3 phase breaker.
 
Dell3c said:
Noticing in above picture of original poster, the term "feeder" is clearly being used, in termination of 3 phase breaker.
Click to expand...
Correct. I agree that the graphics are poor with missing information like if the raceway is an EGC.
 
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