Armored twisted pair shielded cable ASTP-120Ω

&&Nowadays, most industrial automation networks use R/interfaces, and it is recommended to use updated products&&R-specific communication cables with impedance matching. The general recommendations are as follows: Universal fieldbus series cable
The twisted-pair shielded cable with a linear impedance of & is widely used in R/, CB and other buses. This series of cables has many specifications. The general recommendations are as follows:
Ordinary twisted pair Shielded cable&(C), cable outer diameter. left and right, blue sheath. Suitable for indoor, pipeline and general industrial environments. When in use, one end of the shielding layer should be grounded!
Ordinary twisted pair shielded cable&(C), cable outer diameter. left and right, gray sheath. Suitable for indoor, pipeline and general industrial environments. When in use, one end of the shielding layer should be grounded!
Armored twisted pair shielded cable&(C), cable outer diameter. left and right, black sheath. It can be used in places with serious interference, frequent rodent infestations, and places with lightning protection and explosion-proof requirements. When in use, the armor layer should be grounded at both ends, and the innermost shield must be grounded at one end!
Frequency converters, power cables, transformers, high-power motors, etc. are often accompanied by low-frequency interference, and this interference cannot be solved by cables shielded with high conductivity materials, including original imported cables. Only shielding layers made of high magnetic permeability materials (such as steel strips and steel wires) can effectively suppress low-frequency interference.
The most common method is to cover the cable with a steel pipe or directly use armored cables made of high magnetic permeability materials&&&(C).
Lightning protection for cables laid outdoors is very important! The equivalent interference frequency of lightning strikes is around 10%, which is also a low-frequency interference.
Article .. of "B Building Lightning Protection Design Code": ...In the space that needs to be protected, when shielded cables are used, the shielding layer should be at least at both ends and should be in the lightning protection zone. Equipotential connection is made at the junction. When the system requires equipotential connection at only one end, two layers of shielding should be used, and the outer shielding should be processed according to the aforementioned requirements.
The First Branch of Tianjin Cable General Factory
Corporate legal person Bi Guodong
Director: Bi Junping
Sales Manager Wang Meizun
Telephone:
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Sales ordering phone number: :Mobile phone: Contact person Wang Meizun