The temperature is described in UL as 300V and 600V, while in the national standard it is 300/300V, 300/500V, etc. What is the difference?-Cable Manufacturer

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Zhejiang Yuantong Wire & Cable Manufacturing Co.,Ltd.is a subsidiary of the world-renowned Fortune Global 500 company(ranked 150th in 2024)and a large state-owned holding enterprise group in Zhejiang Province—Wuchan Zhongda Group Co.,Ltd.(stock code SH600704).Located in Linping District,Hangzhou,the company was established in 2000 with a registered capital of 895 million yuan.It specializes in the integrated services of production,sales,research and development,and service of wires and cables.The company is committed to“providing customers with safe cables”and focuses on producing a wide range of cable products,including building wires,control cables,power cables of 110kV and below,mining cables,rubber-sheathed cables,ship cables,computer cables,fire-resistant cables,and other special types of cables.It ranks in the top 20 of China's cable industry.

The temperature is described in UL as 300V and 600V, while in the national standard it is 300/300V, 300/500V, etc. What is the difference?

2025-09-01 Leave a message

1. The rated voltage in GB follows the IEC standard, expressed as U0/U, describing the phase voltage and line voltage, respectively. UL only specifies the rated voltage of the cable. For example, if U is 01 and BV is 450/750, it would be 750 in UL.

2. U0 is the voltage between the live and neutral wires, and U is the voltage between the live wires.