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What is the Sphere of Influence?

Grounding

What is the Sphere of Influence?

E&S Grounding Solutions   Jan 27, 2021   1   1915

An important concept as to how efficiently grounding electrodes discharge electrons into the earth is called “the zone of influence”, which is sometimes referred to as the “sphere of influence”.

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What are driven rods and advanced driven rods?

Grounding

What are driven rods and advanced driven rods?

E&S Grounding Solutions   Oct 25, 2020   0   2386

One of the main advantages of Advanced Driven Rods is that they can easily be installed to depths of 20 ft or more.

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What other types of grounding electrodes are there apart from ground rods?

Grounding

What other types of grounding electrodes are there apart from ground rods?

E&S Grounding Solutions   Oct 25, 2020   0   2355

There are a number of different grounding electrodes in use today. They are the standard driven rod, advanced driven rod, grounding plate, concrete encased electrode (sometimes called a Ufer ground), water pipes and the electrolytic electrode.

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What are the NEC Requirements for Grounding and Bonding Rebar?

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What are the NEC Requirements for Grounding and Bonding Rebar?

E&S Grounding Solutions   Aug 17, 2020   1   4783

Many people are concerned that bonding the steel rebar in concrete may lead to cracking of the concrete due to thermal heating. It is a very counterintuitive concept, but it’s actually the exact opposite.

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Should you make neutral-to-ground bonds in electrical panels?

Grounding

Should you make neutral-to-ground bonds in electrical panels?

E&S Grounding Solutions   Aug 9, 2020   0   1656

Neutral-to-ground bonds are one of our most commonly asked questions. Here is a good guideline.

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The NEC calls for use of Ground Fault Protection (GFP) type for circuit breakers for services over 1000A, does this include buildings or just equipment?

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The NEC calls for use of Ground Fault Protection (GFP) type for circuit breakers for services over 1000A, does this include buildings or just equipment?

E&S Grounding Solutions   Jun 16, 2020   0   3341

Ground Fault Protection systems are very sophisticated devices, often with many variable settings to “Dial-In” the specific requirements needed for your site. Also, the reliability of the GFP systems depends on many factors beyond the proper settings on the device.

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Why does my surge protection device say not to use it with power cords?

Lightning

Why does my surge protection device say not to use it with power cords?

E&S Grounding Solutions   Jan 3, 2020   0   433

The statement saying not to use with a power cord, has more to do with legal issues than with an electrical issue. However, there is a less than 1% chance that an issue could occur: Take an example of a construction foreman (or forewoman) working at a busy job site.

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How to Ground a Subpanel in a Detached Building or Garage?

Grounding

How to Ground a Subpanel in a Detached Building or Garage?

E&S Grounding Solutions   Dec 18, 2019   0   4687

The National Electrical Code article 250.32 covers this section, however, it is one of the longest and most complex sections in the entire grounding chapter, and it can be very confusing

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What Is An Acceptable Earth Ground Resistance Value?

Grounding

What Is An Acceptable Earth Ground Resistance Value?

E&S Grounding Solutions   Dec 10, 2019   0   4150

There are standards that recommend a specific resistance-to-ground, depending on the type of system you are working with.

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What is the purpose of the PVC sleeve in concrete grounding?

Grounding

What is the purpose of the PVC sleeve in concrete grounding?

E&S Grounding Solutions   Nov 20, 2019   0   2075

The PVC sleeve is a requirement for mechanical stress relief, but we recommend hole brass bonding plates.

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Will applying salt around earthing electrodes help to resolve neutral to ground line voltage issues?

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Will applying salt around earthing electrodes help to resolve neutral to ground line voltage issues?

E&S Grounding Solutions   Nov 14, 2019   0   548

Generally speaking, reducing the resistance of the earthing electrodes (salting them) will not help you with a neutral to ground line voltage issue.

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How Does One Lightning Strike Kill Multiple Animals?

Lightning

How Does One Lightning Strike Kill Multiple Animals?

E&S Grounding Solutions   Nov 6, 2019   0   1014

Herd animals that gather in groups are typically killed not by a direct lightning strike, but by the current flowing through the ground from the strike. What happens is that the lightning strike often hits a tree or the ground near where the animals are gathered and the electrical current then spreads along the surface of the ground and shocks any people or animals in the vicinity of the strike. Electrical current literally goes up one leg and down the other back into the ground. Eventually, the current dissipates as it flows further and further from the strike point.

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What is Carbonaceous (Coke)​ ​Breeze and why was it banned?

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What is Carbonaceous (Coke)​ ​Breeze and why was it banned?

E&S Grounding Solutions   Sep 30, 2019   0   1769

In​ ​the​ ​grounding​ ​and​ ​earthing​ ​industry,​ ​we​ ​are​ ​generally​ ​interested​ ​in​ ​Refined​ ​Honeycomb​ ​Coke.​ ​​ ​This​ ​is​ ​because​ ​refined​ ​honeycomb​ ​coke​ ​has​ ​been​ ​cooked​ ​at​ ​high​ ​temperatures​ ​leaving​ ​it​ ​with​ ​a​ ​very​ ​low​ ​level​ ​of​ ​sulphur,​ ​a​ ​low​ ​coefficient​ ​of​ ​thermal​ ​expansion,​ ​and​ ​very​ ​low​ ​in​ ​electrical​ ​conductivity

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What is the Best Soil Resistivity Testing Method?

Grounding

What is the Best Soil Resistivity Testing Method?

E&S Grounding Solutions   Jul 9, 2019   0   989

The Wenner 4-pin method provides better results when dealing with the propagation of electrical currents through the earth.

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How exactly are airplanes electrically grounded?

Grounding

How exactly are airplanes electrically grounded?

E&S Grounding Solutions   May 8, 2019   0   1017

1. The airplane is properly bonded from tip to tip and has an extremely low difference in potential from any given point in the plane. 2. The airplane is not properly bonded and has large resistances from front to back and side to side.

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