fiberglass pool
- Thread starter domnic
- Start date
- Status
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
If it is a non conductive pool you don't bond it. You do have to bond any equipment that is metal that is part of the pool. The water must be bonded also but that is done if there is a light in the pool or with special fittings at the pump
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
Either that or there is current flowing through the water to the bond point which is cresting a voltage gradient in the water.
If there is a metal drain fitting and pipe, it must be bonded too.
Tapatalk!
If there is a metal drain fitting and pipe, it must be bonded too.
Tapatalk!
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
The water will not have the same potential everywhere throughout its volume if current is flowing through it.
But if all metal parts are bonded to the pool deck and the pool does not leak, it is hard to see where the current would be coming from.
Just remember that there can also be potential differences within the earth if fault or neutral currents are flowing in it. And those differences could be transferred to the water by any penetration which is not metallically bonded.
Tapatalk!
But if all metal parts are bonded to the pool deck and the pool does not leak, it is hard to see where the current would be coming from.
Just remember that there can also be potential differences within the earth if fault or neutral currents are flowing in it. And those differences could be transferred to the water by any penetration which is not metallically bonded.
Tapatalk!
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- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
And what of the pump?
The requirements for bonding lights can be very detailed depending on the type of light.
Tapatalk!
The requirements for bonding lights can be very detailed depending on the type of light.
Tapatalk!
The devil may lay in the details. His term "bonded to the panel" would certainly put some doubt into the pool/light, etc being properly bonded. (I have heard good arguments for not connecting the panel to the bond grid, but thats for a different thread)
There have been instances where stray currents, often associated with POCO equipment, have caused such problems. I would suggest turning off ALL house power and seeing if that has any effect.
There have been instances where stray currents, often associated with POCO equipment, have caused such problems. I would suggest turning off ALL house power and seeing if that has any effect.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
That could easily be the root of all problems right there. They may have had good intentions to try to do it right, but doesn't mean they still were not in over their heads and missed something. Was whatever they think they saved worth it if someone gets seriously injured or killed from their installation?
We can argue all we want about what is acceptable for DIY electrical work, but some areas like a swimming pool are not places where DIY belongs at all, but the average DIY doesn't understand how more sensitive the environment is a safety factor in such a place than most areas they are accustomed to doing such type of work. Non current carrying components are what gets them more than current carrying components in such installations.
growler
Senior Member
- Location
- Atlanta,GA
The first thing they normally miss is getting a permit so their work will be inspected. This will at least gets them a second opinion and make sure they are not cutting corners.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
Stray voltages is what bonding everything imaginable together is all about. The idea is not to eliminate those stray voltages but rather shunt them around the users. If everything within a user's reach is all at same potential it can be thousands of volts above ground and the user still feels nothing, just like a bird on an overhead power line.
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