山东卷扬启闭机价格

山东电缆桥架

是电缆的主要依附工具，它的安全是保障电力输送安全的重要基础在生活中经常会发现家里有的电线开裂断裂或外面的保护层变软变薄，都是电线电缆衰老的症状，老化的原因有哪些呢?

Cable bridge is the main tool of cable attachment, its security is an important basis of transport safety power in life will always be found home protection layer and some wire cracking fracture or the outside becomes soft and thin, wire and cable are the symptoms of aging, what are the causes of aging?

1、化学和电解腐蚀。电缆被埋在酸性或碱性的环境中，电缆表皮经过长期的腐蚀就会降低绝缘，老化，甚至损坏。

chemical and electrolytic corrosion. Cable buried in acidic or alkaline environment, the cable skin after long-term corrosion will reduce the insulation, aging, or even damage.

2，机械损伤。由于电缆敷设施工违规或埋在地面上有电缆土建施工会损坏电缆，长的电缆可能会造成机械损坏故障损伤部位，导致安全故障。

mechanical damage. Because the cable laying construction irregularities or buried in the ground cable construction can damage the cable, the cable length may cause mechanical damage fault sites of injury and lead to security failures.

3、温度和湿度。如果电缆很长的高温环境下，电缆绝缘被击穿，可能会引起火灾或爆炸。

temperature and humidity. If the high temperature environment very long cable, cable insulation breakdown may cause a fire or explosion.

4、电缆长期超负荷工作。高负荷长期的加速老化热量使电缆的绝缘层，甚至击穿，这也是非常危险的。

cable long-term overload of work. High load long-term accelerated aging of the insulation layer of the cable heat, even breakdown, this is very dangerous.

电缆在敷设和日常检查中都要非常注意，避免因为施工不当或者其他外界原因导致电缆提前老化，造成不必要的麻烦。

The cables have to be very careful in laying and daily inspection, avoid because of improper construction or other external causes premature aging of the cable, causing unnecessary trouble.

山东电缆桥架