电缆护层保护接地箱内含有电缆护层保护器、连接铜排、铜端子等，用于电缆护层的保护接地。主保护器采用ZnO电缆护层保护器，密封结构采用硅橡胶密封，达到较高的密封防水要求。全部采用铸铝或不锈钢外壳，导体连接件采用镀锡铜排，并采用螺栓压接，安装简单，便于预防性试验时电缆金属护套与保护器间脱开。保护接地箱可安装于户外运行，不受各种异常气候的影响。电缆护层保护接地箱分单相接地保护箱、三相三线接地保护箱（平时简称的接地保护箱）、三相六线接地保护箱。(公众号：输配电线路)

The cable sheath protection grounding box contains cable sheath protector, connecting copper bar, copper terminal and so on, which is used for the protective grounding of cable sheath. The main protector adopts ZnO cable sheath protector, and the sealing structure adopts silicone rubber seal to achieve higher sealing and waterproofing requirements. All of them are cast aluminum or stainless steel shell, the conductor connector is plated with tin copper, and the bolt is pressed, and the installation is simple. It is convenient for the cable metal sheath to be removed from the protector during the preventive test. The protective grounding box can be installed in outdoor operation without any abnormal weather. The cable sheath protection grounding box is divided into single phase grounding protection box, three-phase three wire grounding protection box (usually referred to as grounding protection box), and three-phase six wire grounding protection box. (public number: transmission and distribution line)

电缆护层保护接地箱

Protective earthing box for cable protective layer

单相接地保护箱

Single-phase grounding protection box

三相六线接地保护箱

Three phase six wire grounding protection box

以下为厂家参数

The following is the manufacturer's parameters

2电缆护层交叉互联箱

2 cable shield cross interconnected box

电缆护层交叉互联保护接地箱内含有电缆护层保护器、连接铜排、铜端子等，用于电缆护层的保护接地。电缆护层交叉互联保护接地箱外壳及连接螺栓全部采用不锈钢材料，耐腐蚀性能优良。

The cable interlayer protection interconnect box contains cable sheath protector, connecting copper bar, copper terminal and so on, which is used for the protective grounding of cable sheath. The cross connection protection layer of the cable sheath is made of stainless steel and the corrosion resistance is excellent.

电缆护层交叉互联保护接地箱导电连接全部采用螺栓压紧结构，安装简单，便于预防性试验时拆装。内部保护器选用硅橡磁针氧化锌电阻片保护器。导电连接件全部镀锡处理，导电性能可靠。绝缘支撑件均采用防潮处理。(公众号：输配电线路)

The cross connection protection layer of cable sheath, the conductive connection of the grounding box is all made of bolt pressing structure, and has simple installation, which is convenient for disassembly and assembly during preventive test. The internal use of silicone rubber needle protector Zinc Oxide resistance sheet protector. The conductive connectors are all tinned, and the conductivity is reliable. The insulation support is moisture-proof. (public number: transmission and distribution line)

电缆交叉互联保护接地

Cable cross interconnected protection grounding

3电缆护层保护器

3 cable protector

电缆护层保护器应用于单芯电力电缆线路中，限制电缆金属护层上的感应过电压，确保电缆护层绝缘不被过电压击穿。(公众号：输配电线路)

The cable protector is applied to the single core power cable line, limiting the Induced Overvoltage on the metal shield of the cable to ensure that the insulation of the cable shield is not broken through by overvoltage. (public number: transmission and distribution line)

电缆护层保护器采用ZnO压敏电阻作为保护元件，没有串联间隙，保护特性好，具有优良的伏安特性曲线。

The cable sheath protector adopts ZnO varistor as protection element. It has no series gap, good protection characteristic and excellent volt ampere characteristic curve.

4护层绝缘监视箱/电缆接地环流监测箱

4 shield insulation monitoring box / cable earthing circulation monitoring box

护层绝缘监视箱是用于高压单芯电力电缆线路，检测电力电缆金属护套的对地电流，监视电缆护套的对地绝缘的完好情况。护层绝缘监视箱在电缆锈钢铸件  螺杆式启闭机 保定搬家 电缆挂钩 冲压机  防撞护栏模具护套发生故障时，能实现报警；设有过流继电保护装置，用户可调整该装置的动作电流；设有刀开关，故障时可通过切换开关来切断故障电缆。(公众号：输配电线路)

The insulation monitoring box of the protective layer is used for the high voltage single core power cable line, detecting the ground current of the metal sheath of the power cable and monitoring the good condition of the ground insulation of the cable sheath. The insulation monitoring box of the protective layer can alarm when the cable sheath is broken, and a over current relay protection device is set up. The user can adjust the action current of the device; with a knife switch, the fault cable can be cut through switch switch when the fault is broken. (public number: transmission and distribution line)