Although Liqiu has been around for almost a week, many areas in our country have not yet entered the state of autumn. The hot and hot temperatures continue to attack people. In the summer and early autumn, there are more torrential rains and lightnings. Lightning prevention work can not be sloppy, especially in places where there are frequent lightning strikes. The use of instrument testing equipment for regular inspections, detection of lightning protection equipment is an effective guarantee for public safety. Nantong over-limit detection station is located in areas with frequent lightning, in order to improve the lightning protection device in the station area, ensure that the lightning protection device is complete, safe and effective in the entire station, prevent the occurrence of lightning accidents, protect the personal safety of employees and avoid lightning accidents in the station area. Occured, the station requested Nantong Tongzhou District Lightning Protection Facility for lightning protection professional and technical personnel on the station area lightning anti-static device facilities for a full range of safety testing. The technicians performed lightning protection device safety tests on all the lightning rods, buildings, power distribution systems and other facilities in the station area. During the testing process, the staff of the station carried out lightning and lightning safety knowledge training, focusing on how to prevent lightning strikes during thunderstorms. The items that should be noted when thunder and lightning strike are encountered, and the formation of direct lightning and induced lightning and different protective measures are explained in detail.
The hidden danger of lightning protection cannot be ignored. In normal work, it is necessary to treat the inspection work rigorously. When detecting problems with detection instruments, make timely adjustments to avoid disasters.
Chlorinated polyethylene is a saturated polymer material with a white powder appearance. It is non-toxic and tasteless. It has excellent weather resistance, ozone resistance, chemical resistance and aging resistance. It has good oil resistance, flame retardancy and coloring properties. It is an excellent impact modifier for PVC plastics and a synthetic rubber with good comprehensive performance. It has a very wide range of applications and has been widely used in cables, wires, hoses, tapes, rubber and plastic products, sealing materials, flame retardant transport belt , Waterproof coiled material, film and various profiles and other products.
As a PVC impact modifier, CPE135A has many advantages such as low price, excellent performance, and excellent aging resistance, but it has certain disadvantages in the use of high impact and high hardness products and low temperature resistant products CPE135A. For example, in the formulation of rigid PVC, a large amount of CPE will reduce the hardness and rigidity, which reduces the physical properties of the product; in addition, when the low temperature resistance requirement of PVC products exceeds minus 30°C, CPE135A cannot meet the requirements. Under normal circumstances, modified CPE, such as ACM, RGC135A, etc., can be selected for rigidity and hardness improvement; for low-temperature resistance modification, impact-resistant ACR or other impact modifiers with lower glass transition temperature can be selected.
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