For over 30 years, Newson Gale has been leading the way in hazardous area static grounding control, serving industries where processes generating static electricity have the potential to ignite flammable or combustible atmospheres.
In many branches of industry, hazardous (explosive) atmospheres exist due to the presence of flammable liquid vapours, gases, dusts and fibres. No matter how the explosive atmosphere is classified, it is vital that all potential ignition sources are eliminated, and static electricity is perhaps the most insidious of them all. Static electricity is generated in industry by virtually all operations and processes involving movement – for example product transfer, mixing and size reduction. Fires and explosions can occur as a result of uncontrolled static discharge from plant, people and materials, and these commonly result in civilian injuries and fatalities, as well as significant financial losses in direct property damage and plant downtime.
International codes of practice such as IEC 60079-32-1 provide guidelines for the effective control of static electricity, involving grounding and bonding all conductive and static dissipative plant and equipment in explosive atmospheres to prevent charge accumulation. This may sound simple enough in theory, but in practice is more difficult to achieve if you consider the large number of “static critical” applications commonly found in industry, coupled with the presence of non-conductive materials, surface coatings and other insulating substances. Ideally, any control measures used should provide a seamless interface with normal plant operation and involve simple, user-friendly procedures.
To help control these risks, Newson Gale offers a wide range of static grounding and bonding equipment which is made to provide optimum safety in explosive atmospheres and other hazardous operating environments. The Newson Gale range prevents static charge accumulation by using practical and innovative design, and ensures effective static control on three levels: –
• Earth-Rite® series of static ground indicators and interlock systems
• Bond-Rite® series of self-testing static grounding clamp units
• Cen-Stat™ series of static grounding and bonding clamps, cables, reels and test instruments
The dedicated grounding systems for road tanker and mobile vacuum trucks will be exhibited at this year’s show, highlighting the importance of static control when transferring flammable liquids.
The Earth-Rite RTR (Road Tanker Recognition) is a dedicated system for road tankers and utilises patented electronics called “Tri-Mode” technology. Three main checks must be in place before loading or unloading can commence. 1) The driver or operator has to connect the grounding clamp correctly to the main body of the tanker. 2) The static ground verification check will ensure a good connection to the general mass of the earth. 3) The system will then continuously monitor this loop to ensure the resistance never exceeds 10 ohms. The Earth-Rite RTR system also has interlock capabilities and has been ATEX, FM & cCSAus approved and meets the latest standards and industry guidelines.
The Earth-Rite MGV (Mobile Ground Verification) system has been manufactured for mobile vacuum trucks and bulk chemical road tankers. The easy to use system allows operators to confirm a positive earth connection prior to collecting or transferring flammable and combustible products. All elements of the vehicle including hoses and hose connections are susceptible to static charge accumulation during the transfer process. If the static electricity is allowed to build up then the discharge of a static spark becomes a hidden danger that could lead to the ignition of the product, causing injury to people, product and plant.
Please visit us at Stand C30 for a live product demonstration or to discuss your own application in more detail. Our trusted advisors will be on hand to answer any questions you may have and provide you with further information.