SEBUAH kabel kontrol berpelindung Umumnya digunakan sebagai jalur sambungan instrumen listrik.
Sangat cocok untuk jalur sambungan instrumen listrik dengan tegangan AC 450/750V ke bawah dan jalur transmisi sistem kontrol otomatis.
Ia memiliki sifat yang sangat baik seperti tahan minyak, tahan air, ketahanan aus, ketahanan terhadap asam dan alkali, ketahanan terhadap berbagai gas korosif, resistensi penuaan, dan tidak mudah terbakar.
SEBUAH kabel kontrol berpelindung is a cable with a layer of mesh copper or metal wire woven around one or more wires. This layer of mesh metal wire can prevent lightning strikes and external signals cannot interfere with it.
The shield also provides some leakage protection. If the cable is damaged during use and leaks, the shield can direct the leakage current to the ground wire, providing some safety protection.
The role of shielding and grounding wire of shielded control cable is that the shielding layer is divided into internal shielding and external shielding.
They are both to make good contact between the cable conductor and insulation layer, and between the cable insulation layer and the inner protective layer, to eliminate the increase of surface electric field strength caused by the unsmooth surface of the conductor and the inner protective layer.
Product characteristics of shielded control cables.
(1) Allowable bending radius of the cable: the minimum bending radius of a non-armored cable is 6 times the outer diameter dari kabel. Fluoroplastic insulated and sheathed cables should be at least 8 kali diameter luar kabel. Copper tape shielded or steel tape armored cable should be at least 12 kali diameter luar kabel.
(2) Maximum operating temperature: polytetrafluoroethylene propylene (F46) insulation should not exceed 200 ℃. Soluble polytetrafluoroethylene (PFA) insulation should not exceed 260 ℃.
(3) Minimum ambient temperature. Selubung PVC: fixed laying -40℃, non-fixed laying -15℃. Fluorine plastic and silicone rubber sheath: fixed laying -60℃, non-fixed laying -20℃. Cable installation and laying temperature shall not be lower than 0℃ (fluoroplastic, silicone rubber and nitrile sheathed cable shall not be lower than -25℃).
