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1光缆金属护层对地绝缘不良点查找随着通信技术的发展,光缆越来越多地采用直埋敷设。光缆中金属护层对地绝缘电气性能将直接影响光缆的防潮、防腐蚀性能以及使用寿命。我们通常采用QDG型电缆故障定位仪来完成光缆金属护层对地绝缘不良点的查找。QDG型电缆故障定位仪是由发送机(
A fiber optic cable to the poor insulation to find the point With the development of communications technology, more and more direct use of optical fiber laying laying. Cable insulation layer in the metal sheath on the electrical properties will directly affect the optical cable moisture, corrosion resistance and service life. We usually use QDG-type cable fault locator to complete the cable insulation layer to find the point of poor insulation. QDG-type cable fault locator by the transmitter (