Ground Bushings

[laketime]

When are ground bushings required by the NEC?

 

[iwire]

All raceways containing service conductors and in some applications where the voltage exceeds 250 volts to ground.

Take a look at 250.97.

 

[laketime]

How come after 20 years as an electrician I don't feel like I know anything some days?

 

[Volta]

How come after 20 years as an electrician I don't feel like I know anything some days?

Ahh, proof of experience right there :grin:!

The more we learn, the less we know . . .

 

[iwire]

Ask me about explosion proof work, or hospitals, I will get that 'dear in the headlights look'. Point being we know what we are used to, if you have not had to worry about it before why would you know it.

 

[Hameedulla-Ekhlas]

How come after 20 years as an electrician I don't feel like I know anything some days?

In underground distribution duct system Ground bushings at all conduit terminations are required.

 

[infinity]

In many cases there are other options besides bonding bushings. A bonding wedge or bonding locknut may also be used in many applications where you would use a bonding bushing.

 

[iwire]

In underground distribution duct system Ground bushings at all conduit terminations are required.

You have an NEC section in mind?