Cable manufacturer: 6 major elements of continuous heating of high-voltage cables in operation

1, the cable conductor resistance does not meet the requirements, the composition of the cable in the operation of the disease fever phenomenon.

2. The cable selection type is unreasonable, the cross section of the wire that makes up the cable used is too small, and the load condition occurs during operation. After temporary application, the cable fever and heat exhaust imbalance form the phenomenon of fever.

3. Excessive placement of cables during installation, poor actual effect of ventilation and heat removal, or too close to other pyrogenics of the cables, seriously affecting the stable heat removal of the cables, and possibly causing fever in the cables during operation.

4. The production and manufacturing of the connector is not good, the socket is not close, the circuit resistance at the constituent interface is too large, and the phenomenon of cable fever will also be formed.

5, the cable phase insulation function is not good, the composition of the grounding resistance is relatively small, the operation will be fever phenomenon.

6, armored cable cable part of the protective wire sleeve damage, water seepage after the insulation layer function composition slowly damage the actual effect, composition of the grounding resistance gradually reduced, but also the composition of the cable in the operation of the fever phenomenon.

After the occurrence of fever in the power cable, if no factors are found to clean the problem immediately, the insulation breakdown will occur after the cable is plugged in again. The composition of the cable incidence of two-color short-circuit trip conditions, complex and changeable may lead to fire accidents.

Cable manufacturers: high-voltage cables need to pay attention to daily maintenance

High-voltage cables need to pay attention to daily maintenance; the use of electricity makes daily life develop rapidly. If cables are used and repaired incorrectly, it may cause some safety risks and cause incidents, especially fire accidents. In the use of pumps and motors, cables are the main ones. In order to ensure the safety of construction site and the quality of cables, the following maintenance is required for cables: to ensure the quality of the project, especially the quality of cable head production must be strict and meet the requirements.. The cable trench should be kept clean to avoid cable moisture, resulting in lower insulation resistance and short circuit failure.

Clean up the smoke and dust accumulated in the cable on time to avoid the fire caused by the accumulated smoke and dust. Improve the on-time inspection and maintenance of the cable circuit switch and guarantee to ensure its reliable operation. Improve cable operation monitoring to prevent overload operation and accidents. Carry out cable and cable inspection on time, and properly handle abnormalities when found.

If the power is cut off in rainy days, the power should be turned off immediately. Please ask the welder to check the reason and send full-time personnel to take care of it. Cable paving should always maintain adequate spacing with the heat pipe, to prevent the heat caused by the impact of the cable, the general control cable is not less than 0.5 meters; driving force cable is not less than l meters. The control cable and the driving force cable shall be divided into slots, layers and separate layout, and the solid layers shall not be overlapped. For the position that does not meet the requirements, the cable should take flame retardant, heat insulation measures.

In order to reduce costs and reduce capital allocation, it is necessary to increase the service life of cables and cables when in use, but this is not simple. This requires not only the solid quality of the cables themselves, but also the daily timely maintenance and maintenance of the cables, so as to create a safe and high quality living natural environment.

Cable manufacturer: our company has a variety of cable procurement remember to consult our company.