How to calculate intrinsically safe grounding
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Dear experts, regarding the Zener safety barrier, an intrinsically safe grounding is required. So what exactly constitutes intrinsically safe grounding? Are there any specific guidelines for carrying out this process? I only know that it cannot be shared with other places.
I’m here to do the lifting work~ https://bbs.hcbbs.com/thread-1357154-1-1.html
Actually, I saw this section as well, but I didn’t quite understand it. Aside from the requirements regarding the ground resistance, I want to know exactly how to make the connections – that is, how to distinguish it from other grounding points.
Uh, haven’t all these pictures made it clear enough? I guess not many people use Zener diodes these days either.
It was specified by the customer; there’s nothing we can do about it. We originally wanted to use isolation safety barriers, but we haven’t dealt with this before.
Don’t know how to ground it? ······ Then dig a pit 1 meter deep, buy some salt – say 10 kilograms – and pour it into the pit. Add 50 to 100 kilograms of water to the pit as well. Insert a stainless steel rod into the pit, then cover it with soil. And then, connect the wires. How do you weld stainless steel and copper wire together? Do you understand? If you want to know, come and pay the fee to me – learn a skill that will last a lifetime. You don’t need to understand it; just wrap a few turns of wire around pliers and twist it, and that’s a ball. :lol
Let’s take a simpler example: first, use a steel rod to punch a hole, then take out the water bird, aim at the hole, and pee in it.:lol After that, push the steel rod back in – and voilà, you have a great grounding point.
Excuse me, expert – how is it possible to separate different areas inside the electrical control cabinet? Generally, the interiors of electrical control cabinets are connected to each other.
Generally, the names are interchangeable. You can decide yourself how many separate grounding terminals are needed in the cabinet; just don’t add one if you don’t need it
I get it now; so several separate grounding systems are used for the electrical control cabinets, right?
In the end, it still has to be connected to the main grounding grid. Where it will be combined again depends on the design of the grounding points in that grid. To be honest, I’m not quite sure how to divide it into sections; there’s a lot of complexity involved in this.