I think of floating to be a synonym for isolated. The neutral floats on the insulator plastic unless the bond screw is installed.
I was thinking that too, the grabbing mechanism is not visible from the outside. It would be more likely that they used something like Jim mentioned than some type of bushing.
No, I just have personal note from the inspection “loose wires/strain relief at panel”
The standard grey wire connector like that has a plastic bit that is supposed to hold the cable.
The big problem on the panel is the mixed up neutral and ground… by the time a real electrician is done with it, the grey connectors will magically be gone.
That terminology is getting more and more popular…
Related: https://forum.nachi.org/t/floating-neutral-in-sub-panel/218054/8
I get an error message. Must be a private conversation or the link is broken.
It is in the Members Only section.
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I figured as much thanks for the update. 
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Just so you know below is title of thread. He’s questioning neutrals and grounds bonded in a garage sub panel.
Floating neutral in Sub panel
Thanks Chris. 
[1]. Unless the original NM cable had no ground conductor or it was not properly bonded to the metallic device box and/or device per code at the time of install, not all devices need to be GFCI protected in a dwelling. (If the above was lacking the ground conductor in the NM a qualified electrician would have had 4 options prior to the introduction of AFCIs into NFPA-70: 1. whole-house rewire with NM-B., 2. Placing a GFCI receptacle outlet on each branch circuit closest to the panel with the rest in that same circuit being connected to the load-side of the GFCI as down-stream protection. 3. Replace out the branch circuit standard breaker with a GFCI or dual purpose AFCI/GFCI type. 4. Change out devices to 2-prong.)
[2] Although the little stickers come with GFCI devices, what purpose do they really serve other than for an inspector or electrician? Does the average person understand what a ground is or its purpose? And they should not need to. If I was moving into a home with those ugly stickers so small that I cannot read them on my brand new device covers, I too would remove them. Just have those circuits protected by the GFCI function and those circuits in question become code compliant.
[3] The original NM may be old, but that does not cause it to be a code violation within itself.
[4] The breaker panel, in my opinion, is NOT modified. The plastic behind that CH panel is mfr installed at production which serve as an insulator between a main breaker and the tub assembly.
[5] Remove green bonding screw and strap which is only used if the CH breaker panel would have been the point of 1st disconnect. As it is in the photo, it should be failed as a code violation.
Additional things that I see as a code enforcement inspector:
- The panel should be set on an insulated material (wood or synthetic), not directly on the concrete block wall.
2.The NM-B AWG-12 (yellow Romex coming out the right-side of the breaker panel) needs to be secured within 12" from the Romex connector coming out the panel.
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The breaker panel feeder needs to be verified as correct size for a 200A. “sub-panel” as the 1st disconnect is considered as the main panel.
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In the photo with the green bonding screw and Cu strap, you will see 2 neutral conductors under 1 screw, that is a “no-no” during current code inspections but may have been permissible at the time of the panel installation. I would make a remark “have a qualified electrician determine if a correction is necessary…”
N.B. after posting the above, I had access to other replies and saw additional photos. There was one photo that jumped out at me that was a neutral bus with a ground conductor running parallel to the bus and appears to be landed on that bus. If so, it needs moved to a ground bus.
Someone else pointed out the the bare Al ground conductor of the SER is incorrectly connected to a neural bus.
Sad to see those comments and lack of understanding from someone that says they are a code enforcement officer.
Don’t need to understand a lack of ground? How about something you think is protected is not. What about the rules in Article 250 requiring certain things to only be used on grounded circuits? As far as the stickers, how about pointing someone to look for a tripped gfi when the receptacles stop working?
A main breaker in a distribution panel can be higher rated than the feed. It is simply a means of disconnect.
Multiple neutrals “might” be okay in a single tterminal when installed. I guess someone never read the label inside the panel prior to this becoming a direct code cite.
Is what you’re saying that you would like to see it done that way since it is not a code requirement?
Just another comment about something mentioned here quite often, the first point of disconnect or point of 1st disconnect. The 2020 NEC has added a requirement for a disconnecting means on the outside of one and two family dwellings. These disconnects may or may not be the service disconnect so the term first point of disconnect is becoming obsolete.
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Good question/point. My state is 2017 adopted, net yet 2020, not that it changes anything relative to your question/comment.
In the jurisdictions that I have installed as an electrician or now that I am inspecting, we want to see the disconnects and panels installed on a backing board if installed on a masonry/concrete structure, or unistrut is also acceptable. Some inspectors request that it is a pressure treated wood. The logic behind this is masonry/concrete hold humidity that when mixed with the salts and the humidity held in the structure cause oxidation of the enclosure. Interesting enough we make no fuss about a metal device box attached directly to the concrete/masonry.
If the BO asks for adoption of practices in the JHA asks for enforcement of those additional practices, then the ESI is inspected to comply.
The term “1st disconnect” is not yet obsolete in the jurisdictions that I inspect, hence I have no opinion about “obsolete” because it is still current.
In the situation given in the original post, the Main Breaker (1st disconnect) is at the meter base and the branch circuit panel in the garage has no main breaker although it is allowed (and I have often had one in this situation for convenience of a disconnect indoors in a geographical location that often has very wet or snowy conditions) it is also permitted to have one at the subpanel (garage panel).
I try to ask myself “What is/was the intent of any code?”, “Is there an immanent risk/danger?”, “What is the JHA requirement?” “What was required when any specific work was completed?”
Thank you for reading, questioning, and commenting. I try to learn something every day.
Those stickers are basically a fraud. From Leviton they’re made of paper, and will not survive any cleaning cycle. It’s as if the vendors don’t really want them to work.
A more durable solution would be some sort of little colored plastic dot that could be inserted into the face of the outlet body itself to mean the same thing.
Cleaning removes microbes. > Removing microbes lowers our bodies’ ability to develop antibodies. > Less antibodies decreases ability to ward off ills… Keep the sticker, don’t clean, be healthy 
So there is a written local code amendment to require this? Panels have integral 1/4" bump outs on the back to keep them off of the masonry surface.
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Good question.
Not a “written” requirement beyond the 1/4" bump out/gap that you have mentioned.
When an inspector asked me to do it, I would comply knowing that the NPFA-70 was a code which is used as a minimum building standard. An AHJ can request higher standards but not regress. We see this type of application all the time.
If the metallic tub is place on an inherently uneven/irregular surface of masonry/concrete wall and the bump outs fall into a grouted joint or a simulated grout line of poured walls, then the back of the panel’s tub no longer has the 1/4" clearance/gap of which you have referred, hence a board that is fixed on that irregular surface gives the tub the 1/4" gap because the bump outs are against the evenly/regularly surface of the backing board.
Does NPFA-70 state that you have to do it? NOPE!
Does the inspector for the AJH ask for it? It depends on the jurisdiction; and even inspector by inspector in the same jurisdiction. Can he/she request it? Yes.
I find it helpful/important to explain the why/intent to the electrician when they ask the questions. I try to let the electrician know what I like to see (not in craftmanship) for me to feel comfortable that their work is code compliant for the intent of the codes and standards giving me confidence that my “pass” determination is valid and conforms to the intent of the standards.
Now let’s just hope the wood “backer board” is PT with corrosion resistant fasteners.
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Thanks for confirming that was my point. I don’t want to see home inspectors writing panels mounted to masonry as defects.
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