Hardware Design of DC Insulation Monitoring Module Based on Cotex-m3
Overview: A network wire cable, usually made of metal which can be used to transmit information over a network. There are three types of network cables in common use: twisted pair, coaxial cable, and fiber optic cable (fiber). Network Cable,Straight Through Cabling,Ethernet Patch Cable,Network Cable Wiring Shenzhen Kingwire Electronics Co., Ltd. , https://www.kingwires.com
1. System insulation detection principle
1.1 Balanced Bridge - Unbalanced Bridge Detection Balanced Bridge - Unbalanced Bridge Detection is achieved by simulating balanced and unbalanced states. The principle of insulation resistance to ground detection is shown in Figure 1. 
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Twisted pair network cable is a data transmission wire consisting of many pairs of wires. Its point is that it is cheap, so it is widely used. Twisted-pair wires are used to connect the RJ45 connectors. There are two types, STP and UTP, and UTP is commonly used.
Now, the network cable include cat8 network cable, cat7 network cable, cat6a network cable, cat6 network cable, cat5e network cable.