DFWK cable junction box
Short Description:
DFWK cable junction box functions and features: It adopts prefabricated live touchable silicone rubber cable heads, fully sealed, fully insulated, maintenance free, and reliable to ensure personal safety.
Product details
DFWK cable junction box functions and features:
1. Adopting prefabricated live touchable silicone rubber cable heads, fully sealed, fully insulated, maintenance free, and reliable to ensure personal safety;
2. Compact structure, compact and beautiful appearance, stainless steel double-layer box, with a service life of over 20 years;
3. Realize regional power outage maintenance and reduce the scope of power outages without affecting the operation of the main network;
4. Can be equipped with one or more SF6 load switches. The wiring methods are flexible and diverse, and the branch output can reach 8 circuits;
5. Optional lightning arresters, short-circuit fault indicators, current limiting fuses, etc. are available to meet various user requirements.
Common cable connectors for DFWK cable junction box:
Made of fully automatic injection of insulating rubber, both the inner and outer layers are semiconductor shielding layers, the inner layer is used to balance the internal electric field, and the outer shielding layer is grounded to protect the zero potential of the cable head surface. The inner layer at the lower end of the stress cone is in close contact with the semiconductor layer of the cable, and the outer semiconductor layer is in close contact with the outer semiconductor layer of the cable head, and is grounded through the grounding hole of the cable head. This not only solves the problem of electric field concentration at the cutting point of the outer shielding layer of the cable, but also keeps the outer shielding layer of the cable at zero potential, ensuring personal safety. The touchable cable front connector is directly installed on the equipment casing, and can be connected to the touchable cable rear connector to form multiple outgoing lines. It can also be connected to lightning arresters to provide overvoltage protection for the power grid.
DFWK cable junction box electrical maintenance connection section diagram:
1. Before installing the cable head, carefully read the installation manual (inside the accessory box);
2. When peeling and cutting cables, the labeling card for the cables in the accessory box should be used;
3. Before crimping the wiring terminal, a stress cone should be fitted first;
4. The installation of intermediate joints must be in place to ensure that the wiring terminals are firmly fixed, otherwise serious consequences may occur due to poor contact;
5. Only the end of the insulation plug is equipped with gaskets and nuts, and gaskets and nuts are prohibited from being installed in other parts.
Technical requirements for DFWK cable junction box:
1. The inner side of the brick wall is sealed with 1:3 cement sand and treated with waterproofing;
2. Concrete operation is used for crossing beams;
3. After the production of basic channel steel, anti-corrosion treatment must be carried out;
4. After the installation of the branch box is completed, cement should be used to seal around the base;
5. Waterproof measures must be taken at the entrance of the manhole;
6. Grounding should be pre embedded in the foundation, and the grounding resistance should meet the requirements of the power department.
