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Re: Self Help Service Disconnect "Upgrade" [Re: tdhorne] #197780 12/19/10 02:24 AM
Joined: Mar 2001
Posts: 345
T
tdhorne Offline OP
Member
Here is what I have done so far in remedying this boot leg upgrade.
1) Installed Two driven rods and connected them to the unused upper lug in the picture.
2) Installed additional lug on wall of disconnect, with the paint sanded away underneath it, to receive the Equipment Grounding Conductor; that was previously terminated in the small lower lug by inserting as many strands as would fit.
3) Ran a new Grounding Electrode Conductor (GEC) to the Copper underground water pipe lateral that extends back to the public water main. The GEC is connected on the street side of the main water shut off less than one foot from were it comes through the basement wall into the house. The new GEC is now connected to the small lower lug that used to have the feeder EGC partially terminated to it.
4) Separated the EGCs from the Grounded Current Carrying Conductors (Neutrals) in the panel that the feeder supplies.
5) Removed the bogus connection in the feeder supplied panel that was between the neutral buss and the interior water piping several yards away from were the water pipe enters the home.
6) Removed the bonding screws from the feeder supplied panel's neutral buss.
7) Since the service entry cable is 2/0 AWG I replaced the two hundred ampere fuses with 150 ampere fuses.
8) Removed some creatures store of nuts from the meter enclosure and installed a KO blank in the opening in the bottom of the can were the original service entry cable was before this "upgrade" was done.
9) Removed the rest of the service entry cable that was abandoned in the wall beneath the meter and filled the hole with duct seal.

I'm going to confess that I missed the absence of bonding on the nipple between the meter can and the disconnect enclosure. So let me ask for opinions on how to remedy that and the absence of a watertight connection on the disconnect end of the nipple.

I propose to install bonding locknuts on both ends of the nipple and add a sealing lock nut to the nipple on the outside of the disconnect enclosure.

For right now I'm going to have to leave the service entry cable undisturbed because the young widow that is paying the mortgage, who's husband was murdered in Iraq for cooperating with the US, cannot afford to hire a locally licensed electrician to complete the repairs. I have been doing the work thus far as a church volunteer. I cannot afford to take the money out of my families budget in order to become licensed in that state and county in order to pull a permit there. Having decreased the fuse sizes down to the existing cables ampacity I have done what I can to make this basically safe. I'm afraid I'll have to leave it there once I clear up the bonding and watertight connection issue.


Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison
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Re: Self Help Service Disconnect "Upgrade" [Re: mikesh] #197782 12/19/10 02:32 AM
Joined: Mar 2001
Posts: 345
T
tdhorne Offline OP
Member
Quote
No ground wire on the neutral, only the bond wire that is too big to fit in the lug. connector installed inside the switch and is there a locknut on the other side. I think Service entry cable is only for underground distribution in Canuk land.
Attachment above the eaves which must be from 150 to 300 mm below the weather head. and even that might be too low for the drop. 11 1/2 feet is minimum height over an area only accessible to pedestrians.
No bonding bushings on the nipple between the meter and switch, Possible dry location connector in the top of meter base.


The connector on top of the meter enclosure is of a weather proof design and as they always do in this area VEPCO has added duct seal on top of that.

Last edited by tdhorne; 12/19/10 02:39 AM.

Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison
Re: Self Help Service Disconnect "Upgrade" [Re: tdhorne] #199343 02/21/11 07:30 PM
Joined: Dec 2003
Posts: 1
Electrichorseman Offline
New Member
OK I'll bite.

I see at least 5 violations.

Not enough clearance between the service entrance conductors and the low voltage utility/ sat. TV cables.

Metal conduit connecting the meter hub and the disconnect not bonded (PVC would have been a better pipe for this use)

Wires connecting the load side of the meter and the line side of the disconnect are from the SEC. These wires are only allowed for use in the cable assembly they came from. THHN/THWN conductors would have been a better wire for this use. Also, it's hard to tell from the pic, but, I would question the size of the conductors vs. the allowable conductor size of the line and load lugs on the disconnect. It's possible the cable is too large for the lugs.

That neutral block appears to be installed too close to the disconnect load side terminal. Also, the cable assembly ground doesn't fit in the lug on the neutral bar. I would question if this block is approved for the use. Overall I would ask to see the disconnect switch manufacturers installation instruction as per location and catalog # for the neutral block.

No supplemental ground (water pipe or rod) bonding taking place at the service entrance neutral bonding point.

I'd also like to see the "suitable for use as service equipment" approval on the disconnect.

Let me know how I did.

Ken C.

Last edited by Electrichorseman; 02/21/11 07:34 PM.

Common sense is not so common
Voltaire,Dictionnaire Philosophique (1764)
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