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Static Grounding for Type C FIBC Bags

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Overview

The ability to monitor operations and stop them if the generation and accumulation of electrostatic charge on a bag exceed recommended levels essentially eliminates the risk that an incendive spark will be discharged, which means no explosion and no fire.

Operators can compensate for normal wear-and-tear usage on Type C bags by ensuring that the bags maintain capacity for dissipating charges and that the ground connection between a bag and the designated point of plant earth grounding is functioning properly.

Benefits

The Benefits of the Sam Carbis Solutions Group, LLC Type C FIBC Bag Grounding System

  • Allows operators in hazardous areas to display Best Practice compliance with the standards established by Cenelec CLC/TR: 50404.
  • Sam Carbis Solutions Group, LLC provides a resistance monitoring feature that, when used in combination with machine interlocking output contacts (x2), always ensures that bags are correctly clamped and grounded before any filling or emptying of materials can begin.
  • The Sam Carbis Solutions Group, LLC grounding system continuously monitors the bag's resistance during the entire fill/empty process to ensure that a safe path for the dissipation of electrostatic charges exists between the bag and the plant earth ground.
  • LED indicators pulse green to inform operators when a good ground connection is made, and red if a faulty connection occurs.
  • The Sam Carbis Solutions Group, LLC's FIBC enclosure and stainless steel clamp are appropriate for use in Zone 21, Zone 2, Class I, II, III, Div. 2.
  • Options are available for Zone 1 and Class I, II, III, Div. 1

 

 
Sam Carbis Solutions Group, LLC FIBC Application
The Sam Carbis Solutions Group, LLC FIBC grounding system keeps an eye on the resistance across the clamp at the bottom of the bag as well as the second clamp at the top of the bag, and back to the earth grounding point connection of the plant. 

CLC/TR 50404 offers the statement below regarding static hazards linked to powder filling and emptying of FIBCs: “Electrostatic charge can be generated during filling and emptying and it can accumulate on the product as well as on the fabric from which a FIBC is constructed or on any parts of it. An ignition could occur if the accumulated charge is released in the form of an incendive discharge in the presence of a flammable atmosphere. Spark, brush, cone and propagating brush discharges are all possible when FIBC are used." (CLC/TR: 50404).

Expert Advice From Sam Carbis Solutions Group

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