Cable shield grounding
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Gentlemen, for cables whose shielding layer is made of copper foil, how is shielding grounding carried out? Is it the same as the method used for copper braided shielding?
If the cable’s shielding layer is made of copper foil, shielding grounding can be achieved by following these steps: 1. Ensure that the cable’s metal shield is connected to the ground wire of the building or equipment, so as to ground the cable’s shielding layer. 2. Cut two copper foil strips about 30 cm in length on the cable shielding layer. 3. Split a copper foil sheet along the cable shield to form a ring around it. 4. Cut another copper foil sheet into 4 pieces, then lift up the shielding layer of the cable around each piece, and clamp the copper foil pieces onto the cable shielding layer. 5. Connect the cable shield and the two pieces of copper foil to the ground wire. In summary, it is similar to the copper braid shielding method, but copper foil sheets are used to wrap around the cable’s shielding layer and ground it. .
The shielding layer usually has a wire, which is used for grounding
Thank you. The workload on the 2nd floor seems quite large. As for that thin thread mentioned for the 3rd floor, is it really useful?
https://bbs.hcbbs.com/thread-1326053-1-1.html Just take a look at this reply – that wire is called a drain wire, and it’s used for shielding and grounding
The copper foil was peeled off, revealing a drain wire. Grounding the drainage wire is sufficient.
Asking this question is simply stupid; when standards were established, the grounding issues related to copper-plastic straps and aluminum-plastic straps had already been taken into account. You’re creating an unnecessary problem on purpose.
Then the only option is to use the same wiring method as with copper shielded wires, with single-ended grounding in the cabinet area, using the working ground E rather than the protective ground PE