In the 1980s, the United States Computer and Business Equipment Manufacturers Association (CBEMA) requested power quality for large-scale computers, and proposed voltage tolerances and related four typical voltage disturbances to prevent voltage disturbances from causing the computer and its control devices. Misoperation and damage. The four voltage disturbances are voltage drop, voltage rise, spike and power failure. The voltage tolerance limit has been adopted by the IEEE and has become the US power quality standard. CBEMA voltage tolerance curve. The basic concept of the CBEMA voltage tolerance curve is that the voltage in the shaded part of the envelope is a qualified voltage, and the voltage outside the envelope is a defective voltage. The voltage below the envelope will de-energize the load, and the envelope The above voltage will cause insulation problems, over-voltage tripping or over-excitation of other equipment.
Our firm introduced whole set of good-sized numerical control hydraulic folding equipment(1280/16000) as well as equipped with a series of good-sized professional equipments of armor plate-flatted machine, lengthways cut machine, numerical control cut machine, auto-closed up machine, auto-arc-weld machine, hydraulic redressing straight machine, etc. The firm produces all sorts of conical, pyramidal, cylindrical steel poles with production range of dia 50mm-2250mm, thickness 1mm-25mm, once taking shape 16000mm long, and large-scale steel components. The firm also is equipped with a multicolor-spayed pipelining. At the meantime, for better service to the clients, our firm founded a branch com. The Yixing Jinlei Lighting Installation Com, which offers clients a succession of service from design to manufacture and fixing.
We have supplied 2400ton 132kV and 220kV transmission line steel pole to WAPDA. Pakistan on 2008 and have supplied 1200ton 138kV transmission line steel pole to Davao light, Philippines on 2009.
Street Lighting Pole, Solar Power, Solar Lighting Pole
Jiangsu Xinjinlei Steel Industry Co., Ltd. , https://www.jinleisteeltower.com