MIGB

[Jose SALAS]

What size wire you need if you daisy chained the MIGB together and size if you did it individually to the enclosure

 

[infinity]

What type of conductors are in the raceways? Feeder, branch circuit, SEC's?

 

[Jose SALAS]

500 mcm

 

[Jose SALAS]

I also would like to know the code for the MIGB

 

[Jose SALAS]

Is the code 250.92(1)and (2)?

 

[infinity]

500 mcm

What kind of circuit is it?

 

[Tulsa Electrician]

What is MIGB?

 

[infinity]

What is MIGB?

Metallic insulated grounding bushing.

 

[Jose SALAS]

What kind of circuit is it?

Is a 3 phase disconnect

 

[Jose SALAS]

What is MIGB?

MIGB is a malleable insulation grounding bushing

 

[Tulsa Electrician]

Thank you

 

[infinity]

Is a 3 phase disconnect

If it's a feeder then the bonding jumper is sized according to the OCPD ahead of the feeder from T250.122.

 

[Jose SALAS]

If it's a feeder then the bonding jumper is sized according to the OCPD ahead of the feeder from T250.122.

So if I have a 600 amp then my daisychained My MIGB with a 2/0 aluminum.

 

[Jose SALAS]

Do I use a 2/0 from my MIGB individually to the enclosure as well?

 

[infinity]

So if I have a 600 amp then my daisychained My MIGB with a 2/0 aluminum.

Yes #2/0 AL is the correct size. You can use individual bonding jumpers from each raceway or loop a single conductor through all of the bonding bushings.

 

[Jose SALAS]

Yes #2/0 AL is the correct size. You can use individual bonding jumpers from each raceway or loop a single conductor through all of the bonding bushings.

Thank you for your help

 

[electrofelon]

Metallic insulated grounding bushing.

MIGB is a malleable insulation grounding bushing

Which one is it!

 

[Jose SALAS]

Which one is it!

Metallic insulated grounding bushing

 

[Jose SALAS]

Thank you for your help

There is two different size if I Daisychain them what’s the code 250.122.

 

[texie]

There is two different size if I Daisychain them what’s the code 250.122.

It sounds like you are referring to service conductors which does not use 250.122 but rather 250.102 and daisy chaining will require different sizing. Different sizes will not happen on a feeder when daisy chaining and 250.122 applies. What are these conductors?