In 2020-2021, the COVID-19 epidemic raged around the world. Affected by the epidemic, the global copper exploration investment has decreased, development projects have been stalled or canceled, production has reduced, and the copper market has been violently shaken. At the same time, the antibacterial function of copper has been explored, and...
Pakistani manufacturers are pressing for change
Recently, Pakistani cable manufacturers have asked to enjoy similar tax policies for Chinese and other importers.
Cable manufacturers said that at present, for the China-Pakistan Economic Corridor project for the import of wire and cable to provide tariffs and sales tax policy, which promoted impo...
For home improvement line, the hose after the tube, the lamp box or switch box within the wire connector electrical generally can not do the standard specification. According to electrical installation standard, flexible connector to be crimped or welding.
Comparison of cord and hardwaves:1.For home improvement line, the hose after the tub...
Hydropower station concessions were sold
Investors are concerned about the sale of Sopradora hydropower station, the Ministry of Electric Power said the government to sell state-owned assets is no longer a matter of urgency, or temporarily shelved the sale of the power plant franchise. The Sopradora hydropower station is the second largest ex...
1. The main reasons for the dampness of XLPE insulated power cables are:
(1) due to the joint box or terminal box structure is not sealed or poor installation caused by water;
(2) cable manufacturing defects, metal sheath with small holes or cracks;
(3) cable transport, construction or operation, the cable sheath due to external damage;
(4) cable t...
In general, the ultra-high voltage cable using MDCV process, the conductor section of 800mm2, the use of non-segmented conductor structure, (800mm2 above the use of split conductor structure), the insulating layer nominal thickness of 35.6mm, metal sets of welding flat aluminum sets. Using flame retardant PE material, the design for the snake-like...
Commonly used low-voltage wire and cable1 PVC insulated PVC sheathed power cablePVC insulated PVC sheathed power cable is a commonly used low-voltage cable, the cable conductor of the maximum temperature can not exceed 160 degrees Celsius, the long-term operating temperature can not exceed 70 degrees Celsius.
2 Copper conductor power cable
Cop...
Methods for determining power cable faultsGenerally speaking, the power cable is mainly broken fault, grounding or short circuit fault, broken wire and ground fault and flashover fault, and so on. We can determine the type of fault in the power cable according to some of the following methods. Here we need to use the insulation resistance table, w...
India Transmission Transformer Market to Reach $2.9 BillionAccording to market research firm Research and Markets report, by 2022, the Indian transmission and distribution transformer market is expected to reach 2.9 billion US dollars.
At present, the Indian government is taking important measures to consolidate the transmission and distribu...
Factors affecting the carrying capacity of copper cables1 Ambient Temperature
The ambient temperature value used is the temperature of the surrounding medium when the cable or conductor is not loaded.
2 Soil Thermal Resistivity
For cables laid in the ground, where the actual soil thermal resistivity is higher than 2.5 K.m / W, the carrying capac...
