Safety issues related to static electricity grounding at gas stations
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Inside the gas station, can the static grounding clamps at the oil unloading point of the tank truck be connected to the sealed unloading port and linked to the underground horizontal metal tank in order to provide static grounding during oil unloading? Please explain the specific reasons; it would be good to have standard guidelines. Thank you everyone!
No, it must be connected to a dedicated anti-static grounding system, and an anti-static grounding meter that can detect bypass wires and monitor the status of the grounding system must be installed.
Generally, it is not connected to the oil unloading port; instead, a triangular iron bar can be buried in the ground, with the static grounding clip at the oil tanker’s unloading point attached to this bar, or it can be directly connected to the horizontal metal tank buried underground. However, the resistance value must be less than or equal to 100 ohms. The relevant standards can be found in the \"Code for Design of Lightning Protection in Buildings\" GB50057-94 (2000 edition). Nevertheless, as long as the grounding resistance meets the required standards, no sparks should be generated even if it is connected to the oil unloading port. It should be connected to the iron plate of the static electricity connection plate on the oil tank; static electricity alarms are installed in all storage areas.