介绍了铝热焊接技术的原理、阴极保护电缆焊接接头的性能及经济效果。
Principle of exothermic welding technique, properties of welding joint of cathodic protection cable and cost economization of the process are discussed, too.
绝缘接头是管道系统中阴极保护的重要装置，它是绝缘法兰的替代品。
Insulating joint is the important equipment of cathodic protection which is used in the system of pipeline, and instead of insulating flange.
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