ESD Grounding Chain for carts, trolleys & chairs c/w Built-in 1MOhms resistor, DESCO 14000

The Desco conductive drag chain is a low-cost alternative to conductive casters to ground mobile equipment (such as carts and chairs) to ESD flooring. 

Install by attaching the 7mm socket to a snap on the item to be grounded. However, all components of the cart or chair must be conductive.

Specifications

Includes one megohm resistor

Easy to install

6" snap loop

24" long

The chain is constructed of 302 stainless steel

Drains charge to ESD protective flooring

Made in the United States of America

Notes:

Per ESD Handbook ESD TR 20.20 Mobile Equipment section 5.3.8: “Mobile equipment [carts] can be grounded directly to an ESD protective floor material via drag chains, conductive wheel(s) and cable or ball assemblies. 

When mobile equipment is grounded through floor materials, it is necessary to ensure a path to ground from the surface (where the unprotected parts are stored) to drop no matter which connection method is chosen. 

One of the benefits of this type of system is that the connection to the ground is constant and does not require operator intervention. 

One of the drawbacks is that the ground connection can be lost if a solid contact with the ESD floor material is not achieved. Dust and dirt buildup  (i.e. on the surface that contains ESDS parts, the floor and the grounding  mechanism) can result in a loss of the electrical connection between the  ESDS item and ground.“ Per ESD Handbook ESD TR20.20 Seating section 5.3.5.2 Types and  Selection, “[ESD] chairs accomplish this by using conductive fibres woven into the fabric. 

The fabric is then connected to the floor through the components of the chair, the cylinder, the base, and the casters (or drag chain).”

REMINDERS:-

(All components of the cart or chair must be conductive.)