Eliminate static electricity from human body in tank area
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In the tank area, in order to eliminate static electricity on the human body, a grounded metal rod should be installed at the entrance of the escalator, or a one-meter-long exposed metal surface should be left on the grounded metal railing. This is the original quote I found on ≤Petrochemical Electrostatic Grounding Design Specification≥SH3097-2000. Now my company does not have facilities to eliminate human body static electricity. Is there any relevant document that stipulates which types of storage tanks need to be equipped with grounding metal rods? My company's storage tanks include (DMA, liquid ammonia, methanol, sodium methoxide, acetic acid, DMF, DMAC). Please help me. Thank you! ! !
Design specifications are the basic basis. When static electricity may be generated and accumulated to cause electrostatic hazards, electrostatic grounding measures should be taken. According to the information you provided, it should be set according to the specification requirements.
I have encountered this problem before. I just want to ask, if the tank has been grounded, why is it necessary to eliminate static electricity on the human body?
We need to start from the source. Grounding only guides the static electricity generated. If we release the static electricity from the human body, wouldn't it be better if there is no static electricity? What I want to ask is which storage tanks need to be used as human body electrostatic discharge devices (relevant documents are attached). Are the fire protection requirements (fire classification) different and some storage tanks don’t need them? Thank you all! ! ! ! ! ! ! ! ! ! !
There are usually guardrails on the tank cofferdam. There are many grounding points on the guardrail, so it should be fine. Always hold the guardrail before entering the tank area, and that's fine.
Flammable and explosive media require anti-static settings
Agree with Floor 6, you can determine the medium of your storage tank. You can connect a section of pipe to the upper tank entrance handrail to conduct static electricity.
The installation of the static electricity extraction device is very convenient and does not require much investment. It is set up according to the specifications.