春晨 ZR-JEFR开关柜电缆 阻燃开关柜电缆

江苏春晨电缆有限公司生产ZR-JEFR开关柜电缆，ZR-JEFR开关柜电缆，

电缆一般分电力电缆和控制电缆两种，其基本特点是：一般埋设在地下，不易受外界的破坏及环境的影响，运行比较可靠，同时通过居民区无高压危险。电缆线路节约用地，美化市容，便于管理，日常维修量小。但也存在施工复杂，价格较高，施工期长，敷设后不易更改，不易加分支线，不易发现故障，检修技术复杂的不利影响。

Cables are generally divided into power cables and control cables. Their basic characteristics are: generally buried in the ground, not easily affected by external damage and environmental impact, reliable operation, and no high-voltage danger through residential areas. The cable line saves land, beautifies the city appearance, is easy to manage, and has small daily maintenance. But there are also some disadvantages, such as complex construction, high price, long construction period, difficult to change after laying, difficult to add branch lines, difficult to find faults, and complex maintenance technology.

电缆线路敷设技术要求

Technical Requirements for Cable Line Laying

明确线路走向根据配电要求及设计图纸确定其走向；

Make clear the direction of the line according to the distribution requirements and design drawings to determine its direction;

埋设深度一般应在地下0.7m深处，在与其他电缆接近或与其他管道接近时应埋在地下1m深处；

The buried depth should generally be 0.7m underground, and 1 m underground when it is close to other cables or other pipelines.

直埋电缆沟的沟底必须平整，或在沟底铺一层厚100mm的细土，并在地面装设标志；

The trench bottom of the directly buried cable trench must be smooth, or a layer of fine soil 100 mm thick should be laid on the trench bottom, and signs should be installed on the ground.

电缆穿越路面时应穿套管保护；

When the cable crosses the road surface, it should be protected by casing.

铠装和铅包电缆的金属外皮两端必须接地。

The metal skin ends of armoured and lead-clad cables must be grounded.

电缆线路的敷设方法有多种，常用的有直埋地敷设，电缆沟敷设、电缆隧道敷设、排管敷设和室内外明敷设。下面简要阐述电缆直埋敷设的施工方法。

There are many laying methods of cable lines, such as directly buried laying, cable trench laying, cable tunnel laying, pipe laying and open laying indoors and outdoors. The following is a brief description of the construction method of direct cable laying.