Mike Dolt Enterprises
Mike Dolt Enterprises
User: jwelectric, Location: North Carolina
Asked on: Wednesday, April 6, 2011 at 6:16 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:52 am EDT
Question: Below are two separate posts from two different web sites. As you can see in both instances the equipment grounding conductor was cut.I know the dangers of doing this but was wondering if some of you would comment on this, please. Notice that in both cases the poster said that it was an engineer with the utility who gave them this advice.I talked to a home owner that works for the power co.HE said that they took the ground loose to stop the shock. Generators from the dam puts power in to the water from the generators on the grounds and all the land around this is rock very little dirt ,very loose dirt.When they build New houses they dig down about 2 foot and lay the ground rod down flat and #6 bare wire in the ditch. about 40 foot to ground. anybody ever heard of any thing like this? This is not just one house, this lake is 500 and something miles around this lake with a number of docks this way.
Post 1
Issue
Equipment grounding conductor (EGC) cut.
Advice
Engineer from utility advised cutting the EGC to stop an electrical shock hazard.
Post 2
Issue
EGC cut.
Advice
Engineer from utility advised cutting the EGC to eliminate a shock hazard from generators putting power into the water.
Commentary
Cutting the EGC is a serious safety hazard for the following reasons:
Eliminates electrical ground path
The EGC provides a path for fault current to safely flow to the ground. Without an EGC, fault current can flow through unprotected paths, such as through people or appliances, causing shocks, electrocution, and fires.
Creates a voltage potential hazard
When the EGC is cut, the electrical system can develop hazardous voltage potential differences between different points, such as between the equipment and the ground. This can lead to shock hazards or equipment damage.*
Violates electrical codes
Cutting the EGC violates most electrical codes and standards, which require a continuous and uninterrupted EGC to ensure electrical safety.
Reasons Why Cutting the EGC May Be Advised
In very rare and specific circumstances, an engineer may advise cutting the EGC as a temporary measure to address a specific hazard. For example, in the case of the second post, there may be concerns about stray voltage in the water around the lake. Cutting the EGC in this case could potentially reduce the risk of electric shock from contact with the water.However, it is critically important to note that cutting the EGC is only a temporary solution and should be addressed by a qualified electrician as soon as possible. Additionally, any such alteration must be approved by the local electrical authority.
Conclusion:
Cutting the EGC is a dangerous practice that should be avoided in almost all circumstances. It can lead to serious safety hazards and electrical code violations. While an engineer may occasionally advise cutting the EGC as a temporary measure to address a specific hazard, it is essential to seek professional assistance to properly address the underlying issue. Flag for review