All news

12.01.15                  , 

Choosing a grounding conductor

In most cases, the burnout, breakdown or corrosion of the grounding conductor disables the entire grounding device. As a rule, people notice this when they already feel the effect themselves (for example, an electric shock, damage to the electrical equipment).

To avoid such surprises, it is necessary to choose and install a grounding conductor. How to do it? Read our instructions!

1. The right material:

Minimum cross section of grounding conductors laid in the soil is specified in
GOST R 50571.5.54-2013:

Grounding conductors Protected against corrosion Not protected against corrosion
Mechanically protected

2,5 mm2  for copper
10 mm2 for steel

16 mm2 for copper
16 mm2 for steel
Mechanically unprotected 25 mm2 for copper
50 mm2 for steel
25 mm2 for copper
50 mm2 for steel


Connection to the ground electrode can be made by welding, crimping, clamping or other methods of connecting a mechanical connector in accordance with the manufacturer's instructions.

It is important to understand that when installing of a connecting clamp, you should not damage the ground electrode or the conductor itself.

PVC insulated copper conductors are most popular. As different models are available (multi-core, multi-wired, etc.), you can choose a sufficient flexibility, which greatly simplifies installation. In the catalog, there are copper conductor models press-fitted into tinned copper lugs with a hole for D8 bolts for connection to the main ground bus.

PVC insulated copper conductors are most popular

2. Regular check-ups

Visual inspections of the visible part of the grounding device should be carried out at least twice a year. During the inspection, pay attention to the condition of the connection between the protective conductor and the ground electrode system, the integrity of the anti-corrosion coating and the conductor itself.

Related Articles: