Grounding Arrangement for A Road Tanker Grounding Point

The ZANDZ Technical Centre has received a request to calculate the grounding arrangement for a road tanker grounding point. Let's consider the solution offered by the technical center's specialists.

Grounding arrangement for a road tanker grounding point

The activities have been performed according to:

  1. EIC, Rev. 7.

  2.  GOST 12.4.124-83


Data provided for calculation:
Soil resistivity accepted for calculations is 100 Ohm*m.

It is necessary to calculate the grounding arrangement to protect from static voltage.

According to item 2.6.2 of GOST 12.4.124-84, the grounding arrangement resistance should be not more than 100 Ohm.

A set of measures ensuring compliance with the requirements to the grounding system is based on the following solutions:

  • a grounding arrangement is made using a 1.5 m copper-plated vertical grounding arrangement. Depth should be at least 0.5-0.7 meters;

  • it is connected to the grounding arrangement using clamp ZZ-005-064.

Calculation of a grounding arrangement resistance for 1 point:

Vertical electrode resistance:

Calculation of a vertical grounding arrangement

Верт - Vert
Экв - Eq
Ом - Ohm

where ρ  – is equivalent soil resistivity, 100 Ohm·m;

L is vertical electrode length, 1.5 m;

d is vertical electrode diameter, 0.014 m;

T is deepening;


, where t is the distance from the ground surface to the grounding arrangement, 0.5 m;


rated resistance of the grounding arrangement is 60,23 Ohm, which is less than the required value of 100 Ohm.


Table 1. List of required materials.

Part number Name Quantity, pcs.
1. ZZ-001-065 ZANDZ Copper-plated threaded grounding rod (D14; 1,5 m) 1
2. ZZ-002-061 ZANDZ Threaded coupling 1
3. ZZ-003-061 ZANDZ Termination 1
4. ZZ-004-060 ZANDZ Guide head for jackhammer attachment 1
5. ZZ-005-064 ZANDZ Conductor connection terminal (up to 40 mm) 1
6. ZZ-007-030 ZANDZ Waterproofing tape 1
7. ZZ-008-000 ZANDZ Attachment to the hammer (SDS max) 1

Do you have any questions about grounding of a road tanker or other facilities? Please contact the ZANDZ Technical Center!

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