The maximum current that the pvc wire can bear is not calculated, but the result of experiment. The test method is about 20 ° Under the environment of C, the voltage test is carried out on the 1 meter long wire to obtain the safe current value that the wire can continuously pass through. This … Read more
The National Bureau of statistics released the output and growth rate of China’s major industrial products from January to March. Among the 100 major industrial products listed, except for fax machines, only 4 products showed a year-on-year decrease in output from January to March 2020. Among them, the cumulative output of abc cables was 63.996 … Read more
1、 Laying and installation of pre branch cable Prepare for laying and installation according to the requirements of design drawings and be familiar with the laying direction and location of cables. (1) Formulate construction plan and organize professional construction personnel. (2) Prepare for installation of tools and equipment. (3) Verify the abc cable model and … Read more
Pre branched cable is a kind of cable which is prefabricated according to the user’s design drawing when the factory produces the main acsr cable. What are the advantages of pre branched cable? How to install pre branched cable? Pre branched cable is a new technology product in recent years, which is prefabricated according to … Read more
Due to changes in the environment in which Power Cables are laid and the application of new materials for cables and their accessories in the cables, it is increasingly difficult to locate faults on the power cable site. The difficulty of field cable fault location is mainly reflected in the fault location of directly buried power … Read more
Factors affecting Aerial Bundled Cable (ABC) SANS 1418 Standard and placement in the wiring six factors affecting cable performance: Ultraviolet (UV)– Do not use cables without UV protection in direct sunlight. Heat — The temperature of the cable in the metal tube or groove is very high, and many polymeric materials will degrade their service … Read more
The energy saving effect of frequency conversion device is very obvious, the use of frequency conversion speed regulating motor in high power motor, the whole generator set can save 30% electricity. And after the use of frequency conversion speed regulation, the soft start of the motor is realized, so that the motor works smoothly, the … Read more
The crosslinking degree (thermal elongation) is not acceptable If the crosslinking degree is not up to the standard, the thermal and mechanical properties of the cable are not qualified and can not meet the requirements of the working temperature of 90℃. The reasons for the unqualified crosslinking degree are as follows: first, the formula is … Read more
The rate of plastic extrusion According to the flow rate analysis of the viscous fluid in the material conveying and homogenizing section of the ABC conductor, the flow rate of the plastic (that is, the extrusion speed) is proportional to the screw speed, and the screw speed is an important operating variable to characterize the … Read more
Environmental protection wire refers to the material is environmental protection wire. The material includes insulating material, conductor material and shielding material. Insulation such as PVC, irradiated cross-linked PVC (XL-PVC), irradiated cross-linked polyethylene (XL-PE), low smoke free (Halogen-free), silicone rubber, Teflon Telflon and so on. The environmental protection of insulation materials is mainly the EU’s RoHS … Read more