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#197453 - 11/30/10 06:11 PM Self Help Service Disconnect "Upgrade"
tdhorne Offline
Member
Registered: 03/22/01
Posts: 345
Loc: Maryland, USA
In these pictures you can see someones attempt at an "upgrade" to their electrical service. Look at the photographs really carefully and see how many things you can identify that this installer missed.

















I would also like some feedback on whether folks here believe a mast would be required to elevate the Service Drop conductors were they pass over the roof for about three feet.


Edited by Trumpy (11/30/10 07:38 PM)
Edit Reason: Images added to thread.
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#197454 - 11/30/10 07:20 PM Re: Self Help Service Disconnect "Upgrade" [Re: tdhorne]
sparky Offline
Member
Registered: 10/18/00
Posts: 5303
This is everyday for me here TD

it's always the 'lesser of evils' for me in the field when DIY'ers are let to run amock


to make matters worse, the poco's play the 'real sparky on the job' double standard , in effect enablaling it's continuance

and yes, a mast would , simply by right of the w/h being lower that the point of attachment, be required

unless a DIY'er did it....

~S~
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#197457 - 11/30/10 07:44 PM Re: Self Help Service Disconnect "Upgrade" [Re: sparky]
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
What on earth happened here?
I'm tending to think that the wires that head inside the building are going through the wrong sort of clamp (if they needed to be clamped at all).
Are you allowed to use a disconnect like this in a residential installation, before the main panel?
Also, what is going on with that CATV box, below the meter base?


Edited by Trumpy (11/30/10 07:46 PM)
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#197458 - 11/30/10 07:52 PM Re: Self Help Service Disconnect "Upgrade" [Re: Trumpy]
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Having said the above, I don't think this work was done by anyone licenced.
Note the amount of bare wire on the disconnect terminals.
I also get the impression that the ground wire was too large for the terminal, hence the core(s) wrapped around the wire below the terminal.
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Let's face it, these days if you're not young, you're old - Red Green grin
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#197464 - 12/01/10 12:13 AM Re: Self Help Service Disconnect "Upgrade" [Re: Trumpy]
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
Tom I agree you need a mast to get the 230.24 mandated 18" using ex3. The other option would be to swing that hanger bracket down to the corner of the brick wall assuming all other clearances can be met out to the pole.
I also do not see bonding bushings on the nipple between cans or a connection to the ground electrode.

The DSS is a mess but that was probably a "professional" install. (AKA the contract trunk slammer the satellite company hires)
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Greg Fretwell
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#197476 - 12/01/10 03:24 PM Re: Self Help Service Disconnect "Upgrade" [Re: gfretwell]
KJay Offline
Member
Registered: 11/27/07
Posts: 763
Loc: MA, USA
I think the mast looks to be a given. That poor SEU looks a little thread bare too.
Besides the bonding jumper already mentioned, for wet locations, 312.2 also says to use fittings listed for wet locations on raceways entering above the level of uninsulated live parts like in that disconnect.

What's going on with that bare EGC on the SER? It looks like it's either a different type of wire where it goes up into the lug or some of the strands were back wrapped to make it fit a lug that's too small for it.
I believe the connector clamp should be outside the enclosure, unless it's also listed for use that way.
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#197492 - 12/02/10 07:24 AM Re: Self Help Service Disconnect "Upgrade" [Re: KJay]
Texas_Ranger Offline
Member
Registered: 12/17/01
Posts: 2391
Loc: Vienna, Austria
I might be completely wrong since I've never seen a US meter base in person, but how is the black phase conductor connected?
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#197493 - 12/02/10 07:42 AM Re: Self Help Service Disconnect "Upgrade" [Re: Texas_Ranger]
EV607797 Offline
Member
Registered: 10/25/06
Posts: 744
Loc: Fredericksburg, VA, USA
No bonding on the pipe nipple between the meter base and the disconnect. It doesn't appear that the jacket of the SER cable makes it beyond the clamp and into the enclosure; No GEC at the disconnect and of course, the EGC from the SER is far to large for the lug in the disconnect.

Oh and yes, Mike. This type of setup is perfectly legal and preferred when the panel can't be mounted immediately inside. That is assuming that it is done correctly of course.

That original installation looks to be one that may have been completed by the POCO. In this area, it was (and still is) preferred that they provide and install the cable on the top half of the service and provide the attachments. PEPCO and VA Power use those offset brackets to "reach around" the edge of the roof quite frequently.

Oh, and Tex: The black and red phase conductors land on individual jaws in the meter socket. The neutral conductor passes straight through. From the angle of the picture, it is difficult to see that there is separation between the upper (line) and lower (load) jaws on the left side.
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"But the guy at Home Depot said it would work."
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#197599 - 12/08/10 03:11 PM Re: Self Help Service Disconnect "Upgrade" [Re: EV607797]
Texas_Ranger Offline
Member
Registered: 12/17/01
Posts: 2391
Loc: Vienna, Austria
Ah, that was what I'd been wondering about.
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#197628 - 12/10/10 05:56 PM Re: Self Help Service Disconnect "Upgrade" [Re: Texas_Ranger]
mikesh Offline
Member
Registered: 06/07/06
Posts: 613
Loc: Victoria, BC, Canada
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.
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