Bond Bushing required?

[bakerboy9999]

Ill try my best to explain the install.
We have multiple runs of pvc in the slab. They exit the slab and then convert from pvc to flex(FMC) and connect to a gutter. Some of the runs are 277v lighting and some 120v general use circuits. Each individual conduit has its own egc. Above the gutter is an LCP. Between the gutter and LCP is (1) 2" nipple. The LCP is small so we installed a ground bar in the gutter and ran 1 ground up to the LCP, landed all the other grounds at the ground bar in the gutter. Hope that was enough info to paint the picture. Here is my question-
Going from pvc to flex ( non of the runs of flex are longer then 3') will it require a bond bushing to ground the flex?
Or, is the flex considered grounded, and the bond bushing not required because the gutter is grounded. No concentric or eccentric holes are used. We drilled and punched each hole.
For the runs of 277v, 250.97(3) , seems it would not require the bond bushing, but just confused on the converting from pvc to flex as apposed to a metallic run between two metal enclosures.
Any help and response would be appreciated. Thanks in advance.

 

[George Stolz]

A bond bushing would be bonding the FMC itself (not loads/equipment down the way), which the connector can do unassisted as described. No bushing required.

 

[JJspark]

the only time you use bond bushings

the only time you use bond bushings

the only times you use bond bushings are
1-specs say
2-hazardous locations 250.100
3-concentric ko's over 250 volts 250.97
4-service entry raceway 250.92
5-expansion joints etc. 250.98

 

[infinity]

the only times you use bond bushings are
1-specs say
2-hazardous locations 250.100
3-concentric ko's over 250 volts 250.97
4-service entry raceway 250.92
5-expansion joints etc. 250.98

I wouldn't say say that your list is complete.