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kirksti

07:38PM | 04/21/07
Member Since: 04/20/07
1 lifetime posts
Bvelectrical
Hi,

Please forgive my ignorance. I need to install four 110v outlets in my back yard for an above ground pool (2 for pool, 2 for convenience). My plan is to direct bury 10/2 with ground UF cable (total distance is 135 ft.) and install a 20 amp GFCI breaker in my breaker box. I've read about running exposed portions through conduit and depth to bury UF cable. My questons are:

1. Do these materials sound correct for what I want to do given distance and all??

2. If this UF cable is grounded in the breaker box do I need to do any other grounding at the outlets?

3. I don't need GFCI at both ends, is one better than the other?

Thanks so much in advance, I just want do it correctly.

Kirk

Billhart

10:08PM | 04/21/07
Member Since: 04/25/05
1916 lifetime posts
There are many very specific requirements for wiring on pools.

And I don't really know them.

He is a link that list some of the details.

http://www.selfhelpandmore.com/homewiringusa/2002/accessory/poolabove/index.htm

TimBonham

09:31AM | 04/23/07
Member Since: 01/09/07
197 lifetime posts
"2. If this UF cable is grounded in the breaker box do I need to do any other grounding at the outlets?"

To answer this question, No, you do not need additional grounding. In fact, you should not do this. Generally, all the wiring in a structure should connect to a single grounding point.

I don't understand what you mean by a GFCI "at both ends". Both ends of what?

Billhart

10:16AM | 04/23/07
Member Since: 04/25/05
1916 lifetime posts
From the link that I posted.

"The pool pump wiring that is installed “only while inside your home going to the outside” while serving your outside above ground permanently installed pool pump motor is allowed to have a covered but non-insulated equipment grounding conductor recognized by the NEC as being found in a nonmetallic sheathed cable [aka sheathed electrical cable]. NEC Article 680.21.A.4 Only that part of the wiring serving your pool pump that is installed while inside your home may be installed in nonmetallic sheathed cable [aka sheathed electrical cable] or UF Cable. Once the wires pass through to the exterior of your home you must use THWN single conductors using a green insulated 12 awg or larger equipment grounding conductor. These THWN conductors must be contained inside a conduit the entire time this branch circuit is installed outside the structure of your home. NEC Article 680.21.A.1"

"ABOVE GROUND POOL BONDING GRID SYSTEM INSTALLATION

The bonding grid system of an above ground pool is normally rather simple in installation methods and concerns. The bonding grid system’s source would be the metal shell sides of the pool itself or any metal rebar supporting that above ground pool. NEC Article 680.26.C.1 through 4 This bonding grid system must be wired using solid [not stranded] 8 awg copper conductors. NEC Article 680.26.C

Any metals 4 inch square, or larger, and located within 5 feet of that pool, and any equipment associated to the pool such as pool pump motors or pool heaters whether beyond 5 feet or not, must be bonded together and then connected to the metal shell or reinforcing rebar of the pool, or may even be directly to the metal shell of the pool, to create the pool’s bonding grid system. NEC Article 680.26.B.1 through 5 While the bonding grid system can make incidental contact between this 8 awg solid copper bonding grid system and the dwelling’s electrical equipment grounding system while inside the pool pump motor, it is not intended that the bonding grid system to be connected to the electrical equipment grounding system in any manner other than incidental contact such as inside the pool pump motor. NEC Article 680.26 and FPN Note

Concerning an above ground pool all that is normally needed to complete the installation of the bonding grid system would be an 8 awg solid copper conductor connected to the lug found on the outside casing of your pool pump motor and ran to a grounding lug bolted to one of the bolts of the pools metal shell when it is bolted together. That is normally it. NEC Article 680.26 To view a bonding grid that is normally all that is required for an above ground permanently installed pool try clicking on each of the picture icons bellow... "
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