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E-mail
987251@qq.com
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Phone
15803260232
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Address
Dongmidi Industrial Zone, Dacheng County, Langfang City, Hebei Province
Langfang Hengxun Cable Co., Ltd
987251@qq.com
15803260232
Dongmidi Industrial Zone, Dacheng County, Langfang City, Hebei Province
Product Introduction
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This product is suitable for electronic computers and automation connection cables with high anti-interference requirements for rated voltage of 500V and below. The insulation of the cable ground wire core is made of K-type B-class low-density polyethylene with antioxidant properties. Polyethylene has high insulation resistance, good voltage resistance, low dielectric constant, and minimal temperature and frequency effects on dielectric loss. It not only meets the requirements of transmission performance, but also ensures the service life of cables. 1[1]
In order to reduce mutual crosstalk and external interference between circuits, the cable adopts a shielding structure. The shielding requirements for cables are based on different occasions, using methods such as twisted pair combination shielding, total shielding of twisted pair cables, and total shielding after twisted pair combination shielding.
There are three types of shielding materials: round copper wire, copper strip, and aluminum strip/plastic composite strip. Shielding pairs have good insulation performance, and if there is a potential difference between shielding pairs during cable use, it will not affect the quality of signal transmission.
2 Technical parameters
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Rated voltage of the product (U0/U): 300/500V
*The working temperature is 70 ℃
The ambient temperature during installation shall not be lower than: -40 ℃ for fixed installation, -15 ℃ for non fixed installation
Small bending radius: For unarmored cables, it should not be less than 6 times the outer diameter of the cable, and for armored cables, it should not be less than 12 times the outer diameter of the cable
The insulation resistance should not be less than 2500M Ω· Km after stable charging for 1 minute using a DC 500V voltage test at 20 ℃
There should be no open circuit between the paired shields and between the paired shields and the total shield
The core to core and shielding of the cable should withstand a 50Hz, AC 2000V voltage test for 5 minutes without breakdown