I beg everyone regarding the issue of lightning protection for instruments
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In design, it is common to encounter situations where the manufacturer requires lightning protection design for instruments. I only know about surge protectors, but I’m not very clear on how to wire them. Could someone explain? Also, what are the requirements for the grounding design in the case of surges? What about the shielding and protective grounding of the instruments? Thank you all
Surge protectors come with safety barriers and isolators; I’m not sure about the exact principle behind this, as I’ve never handled a surge protector on its own. . The shield grounding of the instruments follows the cable; the shield layer of the cable runs all the way to your control cabinet, where it is then connected to the cabinet’s ground connection, and ultimately to the main ground system.
Is the phrase \"Instrument shielding protection grounding\" not clear enough?
The surge protector I have used was installed on the safety barrier. It serves as a lightning protection measure.
I. The housing of on-site instruments must be equipped with terminals connected to ground, in order to direct any lightning current that strikes the site into the ground； II. Grounding of the cable shielding layer: 1. Guide the lightning current along the conductive path into the ground ； 2. Prevent lightning current from entering the surge protector via the induction path.