How should the armor layer and shielding layer of the instrument cable be handled at the point where it enters the cabinet?
Thread Content
How should the armor layer and shielding layer of the instrument cable be handled at the point where it enters the cabinet? Should the armor layer be cut off and discarded? Are all the shielding layers connected together and tied to the grounding terminal of the cabinet? As far as I know, that’s how it’s done; I’m not sure if that’s correct I hope everyone can point out any mistakes.
The armor layer of instrument cables is usually cut off casually, with little treatment given to it. For the shielding layer, generally all the cable shielding layers are separated, then twisted together like braids, and finally connected to the shielding ground electrode with bolts.
Armoring is only used to protect the cable; there is no need to ground it. The method for using shielded wires was explained very clearly by the person upstairs. It’s just as the original poster knows it to be.
This is how we carry out construction work on a regular basis
The armor layer can be cut off and discarded; the shielding layer just needs to be twisted into a braid and connected to the cabinet ground
That’s exactly it; when I was working at the chemical plant, I helped my supervisor by removing the shielding layer – after it was prepared, it was placed inside the cabinet
Armoring can enhance the shielding effect at certain times; it can be grounded, and for shielding, using copper braided wire for grounding is sufficient.