Manholes

[JOHNNIEB]

Looking to install a 200amp service inside a 6x6x6 manholes for street lighting and holiday lighting outlets. Inspector cannot find anything against it but doesn't like it . Does anyone have a code to help the inspector out or to help me with putting this in.

 

[iwire]

If it is really 6' x 6' x 6' it appears you will run into 110.26(E)

 

[charlie b]

If it is really 6' x 6' x 6' it appears you will run into 110.26(E)

Not if its got a really big lid! :grin:

 

[charlie]

That is one of the great things about this forum, I wasn't thinking about clearance but I was only thinking about the possability of water in the manhole since we have to pump ours dry on a regular basis to get down into them to work.

 

[iwire]

Not if its got a really big lid! :grin:

I suspect you where kidding but that is not so far fetched:smile:

 

[iwire]

I was only thinking about the possability of water in the manhole since we have to pump ours dry on a regular basis to get down into them to work.

That is how it is in Boston as well, the power company has pump trucks for doing just that.

 

[JOHNNIEB]

It Is 6'x6'x6' And It Is To Be Water Proofed And Have A Gasketed Top. Now I Know That It Will Get Some Water In It But It Will Have A Sump Pump Along With A High Level Alarm. Does This Make A Difference.

 

[Inspectorcliff]

It Is 6'x6'x6' And It Is To Be Water Proofed And Have A Gasketed Top. Now I Know That It Will Get Some Water In It But It Will Have A Sump Pump Along With A High Level Alarm. Does This Make A Difference.

We see it here in Colorado quite frequently, of course were usually, about a mile above sea level too. As long as its sealed dry location, I wouldn't think there would be a problem, accessible, versus, readily accessible.:smile:

 

[mxslick]

I'd be sure to use Nema 3 rated gear to help protect against moisture, and all copper buss bars in the panels would be a good idea too.

 

[charlie]

I'd be sure to use NEMA 3 rated gear to help protect against moisture, . .

NEMA 3 would not cut it for rising water, NEMA 6P would have to be used. :smile:

 

[tkb]

If there is a pump I don't see aproblem with 3R enclosures.
There WILL be condensation dripping off of the ceiling.
I would also go with the copper buss in the panels.
I would aslo recomend a heater to combat the humidity.

 

[charlie]

Sorry, I didn't notice the pump and alarm.

 

[mxslick]

Sorry, I didn't notice the pump and alarm.

I agree that the 6P would be a better choice though, pumps and alarms or not.