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Why are armored cables often laid underground?
Armored cables have one more protective layer than ordinary cables to avoid damage such as squeezing, pressing, scratching and rat bite. The price cost of one more armored layer is certainly higher. To say that armored cables are more expensive than ordinary cables, it is undeniable, but on the high efficiency, the choice of armored cables is right.
Armored cables are mostly laid underground, because the armored layer of the cable is not white, when it is dark in the underground ditch, it can prevent the car pressure sag, mouse bite, stone scratch and other situations, then it is necessary to use armored cables. Buried cable laying, once the problem occurs, the loss is great, time-consuming and laborious.
Armored cable mechanical protective layer can be added to any structure of the cable, in order to increase the mechanical strength of the cable, improve the anti-erosion ability, is designed for vulnerable to mechanical damage and easily eroded areas of the telephone cable. It can be laid in any way, and is more suitable for direct burial laying in rocky areas.
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