Dwelling unit electrical panel replacement

[jar546]

What is the biggest issue with this panel replacement?
Chris Kennedy, feel free to comment but not give it away please.
It is a subfed panel, not a service disconnect although it is the main panel for the dwelling unit.

 

[fatboy]

Lack of bonding bushing?

Well.......now I don't see a bonding conductor.....

assuming an ungrounded conductor came in somewhere?

And, I am just a dumb'ol carpenter..........

 

[jar546]

32 views so far with only one response, therefore:

The previous installation used EMT without an equipment grounding conductor (EGC) because the EMT acted as the EGC. With the replacement of the panel having existing wires and being a different size, in order to facilitate an easier installation the electrician utilized Flexible Metal Conduit (FMC) which then created a code violation.

NEC 250.118(5) has the answer for the use of FMC (used as an EGC)

(5) Listed flexible metal conduit meeting all the following
conditions:
a. The conduit is terminated in listed fittings.
b. The circuit conductors contained in the conduit are
protected by overcurrent devices rated at 20 amperes
or less.
c. The size of the conduit does not exceed metric designator - (new in 2017)
35 (trade size 11∕4).
d. The combined length of flexible metal conduit and
flexible metallic tubing and liquidtight flexible metal
conduit in the same ground-fault current path does
not exceed 1.8 m (6 ft).
e. If used to connect equipment where flexibility is
necessary to minimize the transmission of vibration
from equipment or to provide flexibility for equipment
that requires movement after installation, an
equipment grounding conductor shall be installed.

 

[chris kennedy]

Chris Kennedy, feel free to comment but not give it away please.

Um, OK

My what lovely weather were having

 

[jar546]

Um, OK

My what lovely weather were having

Well I guess it is too late for that now that I let the cat out of the bag. LOL

 

[TheCommish]

Ok you guys are code geeks lime me.

I can understand the gig for lack for grounding and or bonding, and yes because the flex conduit is it s violating cited by section and verse; is it realy a hazard to life, property or the electrical gods? the

 

[steveray]

At least I got no EGC before I scrolled down.....You guys didn't wait too long for an answer....lol

 

[jar546]

Ok you guys are code geeks lime me.

I can understand the gig for lack for grounding and or bonding, and yes because the flex conduit is it s violating cited by section and verse; is it realy a hazard to life, property or the electrical gods? the

Well the code is very specific about this and addresses this exact situation. It is not a gray or subjective area. If the FMC manufacturers wanted to have their product listed and labeled for EGC use above 20A they would design and have it listed to do so. Unfortunately we don't make the codes, we have to enforce them equally to everyone.