Railway tanker earthing control system

Railway tanker earthing control system
Donat Czapski

Donat Czapski – I am at your disposal

+48 695 244 220



We know the requirements of insurers

From ATEX AUDIT to protection implementation

We provide 24/7 service

Railway tanker earthing control system

Newson Gale Earth-Rite PLUS

The Earth-Rite Plus type earthing control system is designed to eliminate the risk of ignition of the flammable atmosphere as a result of the jump of an electrostatic spark. The solution of this series is most often used for rail tankers and various types of containers and tanks.

Principle of operation of the system

The principle of operation of the Earth-Rite Plus system is based on continuous control of the connection of the tanker (or other object requiring earthing) with the earthing point. This connection is made by attaching a cable with a clamp to the road tanker structure. The system is calibrated to activate the devices responsible for the medium transfer (pumps, valves, etc.) only when the resistance of the earth connection is less than 10 Ω. When this resistance increases above the limit, e.g. due to wire damage or breakage of the clamp, the process will stop.

The system is equipped with a light-emitting diode signalling device that informs the operator about the correct earthing of the road tanker. A red light means that earthing has not been done properly and therefore the system will not allow the start of the unloading/loading process. In addition, if an incorrect earthing is detected during transshipment, the process will be stopped.

System components

  • earthing monitoring unit,
  • junction box for hanging up the clamp,
  • earthing clamp with a wire.

Case study – monitoring of the earthing of road and railroad tankers

Within the construction of a new power unit, we have furnished nine stations for road and railroad tankers unloading with earthing systems including earthing system status control. This resulted from the risk of electrostatic discharge during the unloading process which is going to be made at the power plant, whereas unloading may be a potential source of ignition in explosive atmosphere.


Loading or unloading of railway wagons with liquids or powdered solids can cause strong electrostatic charges, resulting in a serious risk of creating a potentially explosive atmosphere. Although a railway wagon is in contact with earthed rails, many tanks are equipped with non-conductive bearings and abrasive components, located between the railway wagon itself and the wheel sets. This can cause a dangerous situation, as an unearthed railway wagon accumulates strong electrostatic charges.

Electrostatic Earthing – the offer

Earthing control systems

Earth control systems
with process lock (tanks, big bags)

You can use them in the field of earthing monitoring of e.g. road tankers, railways, big-bags, as well as components of process plants. Earth-Rite systems verify easily and safely that the stored loads are properly discharged to the ground through a monitoring unit with a signal lightning diode. If the earthing is not performed properly, the controllers block the process.

Multiple elements earthing control system

Multiple elements
earthing control system

The MULTIPOINT II system is a device designed to control the earthing of up to 8 self-acting or interconnected system components at the same time. According to the guidelines of international standards for the control of unwanted static discharges, the correctness of earthing will only be confirmed by the system if the resistance of the earthing node on each channel is less than 10 Ω.

Clamps with earthing control

Clamps with earthing control
(IBC tanks, drums, big-bags)

We can offer you clamps with monitoring the state of earthing of barrels, tanks, etc. These solutions, in addition to earthing the equipment operating in production rooms, by means of a monitoring unit with a signalling diode, easily and safely verify that the charges accumulated on the equipment are properly discharged to earth.

Simple earthing clamps for single- and two-core cables

wires, spools

Earthing clamps can be used in two configurations – as a set of two simple clamps connected with each other by a spiral cable, or as a connection of the clamp to a earthed container and a ring clamp, which is located at the end of the cable, to a earthing strip.

Shoe inspection stations Ex ATEX

Shoe inspection
stations Ex ATEX

The electrified human body is one of the most serious sources that pose a fire or explosion hazard in industrial conditions. An example of a solution that checks footwear for its ability to dissipate electrostatic charges before an employee enters an area with flammable atmospheres is the Sole-Mate shoe control system.

Secure your industrial plant

Do you have any questions?

Donat Czapski Grupa WOLFF zdjecie
DONAT CZAPSKI - I am at your disposal

We will answer questions about: offer, technical specification, delivery, assembly.

or send your inquiry