Questions And Answers

# List All Questions Search List by Category
Question If static-dissipative table mats are grounded through a resistor of 1 Megohm (for the safety of the operator) then wouldn't this preclude placing 'hard grounded' objects, like test equipment, directly on the mat? - Anonymous, Parsippany, NJ
Answer Yes, by placing the conductive part of any directly grounded equipment on a dissipative mat would negate the personal safety benefits of the 1 megohm serial discrete resistor in the ground cord. The 1 megohm discrete resistor placed in some ground cords is an option and not mandatory. The ESD Association recommends using a hard ground (< 1 ohm), but leaves the 1 megohm resistance as an option for the user. So the decision is yours, if your company's policy is to ground work bench surfaces with a 1 megohm resistor ground cord, then realize you may negate this feature with a direct ground path via test equipment. Also note that most test equipment have insulated feet that would not necessarily allow the chassis to make direct contact with the mat.
Related Categories:
If you have found this Q/A useful, please rate it based on its helpfulness.
Rating Rating Rating Rating Rating
This question has been rated: 0%0%
(0% at 0 Ratings)