Static Grounding Systems For Tank Trucks | ATEX Certified | StuvEx TES01-V2

Product Overview

Static Control for Explosion Protection of Assets & Operators in Hazardous Area Locations

Static Grounding Systems | StuvEx TES01-V2

Truck Earthing & Grounding Systems for Hazardous Areas & Explosion Protection

The TES01-V2 static grounding system consists of a clamp, cable and control unit is ATEX Certified to provide static earthing control and dissipation of accumulated static electricity in hazardous area industries with potentially explosive atmospheres, this includes Zone 1 (21) and Zone 2 (22) flammable gas and combustible dust applications.

Electrostatic charges can be created when non-conducting liquids or powders are loaded and unloaded from trucks. An explosive risk exists if sufficient electrostatic energy is produced. By earthing the truck using a TES01-V2 earthing verification device, this risk can be eliminated.

When connecting the earthing clamp to the truck, the TES01-V2 will check if a low electrical resistance connection is established between the truck, clamp, cable and TES01-V2 control unit, then will check for the presence of a truck through a capacitive measurement.

The loading or unloading procedure is permitted to begin when the resistance and capacitance are both within a safe range. Monitoring of the electrical resistance occurs continually during the (un)loading procedure. Interlock contacts are provided to link the TES01-V2 to process equipment of PLCs providing for safe loading or unloading processes.

All components of the static grounding system are ATEX certified forming part of the StuvEx range of static earthing products and systems. The static grounding system is available in two variants:

• TES01-V2 IP suitable for use in ATEX/IECEx Hazardous Area Zones 21 and 22
• TES01-V2 EX suitable for use in ATEX/IECEx Hazardous Area Zones 1,2, 21 and 22

Truck Earthing & Static Grounding System for Hazardous Areas

Static Earthing & Grounding Benefits

TES01-V2 static grounding system for tank trucks has been specially designed for the safe earthing of trucks and offers the following benefits:

• Safe electrostatic discharge of the truck
• Verification of the truck’s electrical capacity
• Low resistance ( < 10 Ω) between truck and TES01-V2
• Clearly visible red and green LEDS
• Potential-free contact provides release of loading and unloading functions
• Power supply 110-240 V AC and 24 V DC as standard
• Easy ‘plug and play’ installation
• Truck detection ON/OFF, integrated for TES01/IP
• Stainless steel housing for TES01-V2 IP version
• ATEX and IECEx certified
• Complies with IEC/TS60079-32-1 and NFPA77
• Safety class SIL 2

TES01-V2 Truck Earthing System Operation

The StuvEx TES01-V2 earthing verification system has been designed to detect a low electrical resistance between the clamp jaws that are are ached to the truck’s earthing point. If resistance values are low enough, the TES01-V2 will conduct the electrostatic charge from the truck to earth in a controlled way. This will avoid sparks. TES01-V2 unit will subsequently check the electrical capacity at the clamp.

If the capacitance corresponds with that of the truck, the green indicator will light up and loading or unloading will be released. TES01-V2 system will now continuously monitor the connect on between the truck and the clamp jaws to avoid an electrostatic charge build-up. If the clamp is removed from the truck, the TES01-V2 will see this as a potentially hazardous situation and the red indicator will light up. This will immediately interrupt loading or unloading thanks to the interlock relay.

TES01-V2 Kit Contents:

The TES01-V2 earthing system is a set consisting of a control unit, a connecting cable and a stainless steel connection clamp.

Cable, Spiral Cable or Cable Reel

You can choose from a separate cable (10 m), spiral cable (3 m – 10 m) or cable reel (15 m) to connect the TES01-V2 to the truck. The cable reel has an automatic retractor.

Active Earth Clamp

With active clamps, the two clamp jaws are insulated from each other and from the clamp body itself. As long as the clamp jaw is not connected to a conductor, the circuit between the clamp jaws will stay open and no current can flow. Connecting the clamp to the truck’s earthing point will close the circuit. The TES01-V2 becomes operational. An optional storage point for the clamp can be supplied, with or without a shelter.

Earthing Verification Unit TES01-V2

• The control unit provides five important functions:
• Verification of the earth clamp connection with the truck
• Recognises that the object to be earthed is a truck
• Earths the truck without forming sparks
• Potential-free contact to release loading and unloading functions
• Status indication

Static Grounding System General Characteristics

The StuvEx TES01-V2 Truck Earthing System exists in two variants. For potentially explosive gas atmospheres, use TES01-V2/EX. For potentially explosive dust atmospheres use TES01-V2/IP.

Earthing Clamp Accessories

It is worth noting that all of the below accessories are compatible with both the EX and IP variants of the TES01-V2 Truck Earthing System:

* available with or without premounted connector

Product Overview

StuvEx are an international manufacturer of a complete range of Static Earthing, Grounding & Bonding Solutions with ATEX & IECEx Certification for use in hazardous areas; this includes static bonding, grounding and earthing clamps, cables and reels for the safe control of electrostatic hazards and risks in Zone 1 / Zone 2 (Flammable Gas) and Zone 21 / Zone 22 (Combustible Dust) locations.