Bonding Bushing Required?

hellofl

Member
Location
FL
Occupation
Electrician
I have metal conduit which is for the feeder from a fused disconnect enclosure (less than 250V). The service wire comes in through non-metal.

I have seen different interpretations if locknuts would be sufficient for the feeder side. Which is the correct interpretation?
 
Its a main disconnect, yes.
What type of raceway? If the metal raceway contains service conductors you need something other than standard locknuts to bond one side of the raceway. Could be a bonding bushing or bonding locknut.
 
What type of raceway? If the metal raceway contains service conductors you need something other than standard locknuts to bond one side of the raceway. Could be a bonding bushing or bonding locknut.
No, the service goes through PVC. Only the feeder leaves the disconnect in metal.
 
The feeder when in the metal raceway would not require anything other than a standard locknut(s).

On this flow chart it shows "service conductors inside?" -> then required on at least one end."

I understand the question is for the feeder raceway but a service disconnect would have service conductors. The question then becomes is "inside" the enclosure or the raceway. @infinity do you read this differently?
1759837835277.png
 
On this flow chart it shows "service conductors inside?" -> then required on at least one end."

I understand the question is for the feeder raceway but a service disconnect would have service conductors. The question then becomes is "inside" the enclosure or the raceway. @infinity do you read this differently?
My response was based on post #7 where the service conductors are only in the PVC. The feeder in the metal raceway would not require anything beyond a standard locknut.
 
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