2. When using this instrument, the user must follow the “Safety Regulations†section 168 and install two obvious disconnection points before the working power enters the tester. When changing the test sample and wiring, the two power disconnect points should be disconnected first.
3, before the test, please check all test wiring, control box, double pressure tube and the test product ground wire is connected. The test circuit grounding wire should be grounded according to the requirements of this instrument manual.
4, the discharge of large capacitance test sample application TPZGF special discharge resistance rod discharge on the sample. Discharge rod can not be immediately exposed to the sample, should first gradually close the discharge rod sample, to a certain distance air gap began to discharge, there is a hum, when there is no sound discharge rod discharge, and finally directly connected to the ground Discharge.
5. When the DC high voltage is 200KV and above, although the tester wears insulated shoes and is located at a safe distance, due to the influence of the high voltage DC ion space electric field distribution printing, several nearby DCs may have different direct currents. Bit. The test personnel should not shake hands or touch the grounding body by hand, otherwise there will be a slight electric shock phenomenon. This phenomenon is more obvious in dry areas and winter, but due to the small energy, it will not cause harm to the human body.
6, DC high voltage generator control box power supply AC AC220V ± 10%, 50Hz. If the power supply is isolated by 1/1 or if spontaneous power is used in the field, the power supply must be connected to earth ground.
Dear Customer:
Thank you for your attention to our products. In addition to this product introduction, our company also introduces the vacuum tester, infrared thermometer, dielectric loss tester, high voltage test transformer, vacuum oil filter, high current generator, etc. If you are interested in our products, welcome to inquire. Thank you!
1. Wear-resisting steel plate is composed of two parts: low carbon steel plate and alloy wear-resisting layer. The alloy wear-resisting layer is generally 1/3~1/2 of the total thickness. When working, the matrix provides comprehensive properties such as strength, toughness and plasticity to resist external forces, and the alloy wear layer provides the wear resistance to meet the requirements of specified working conditions.
2, wear-resisting steel plate alloy wear-resisting layer and substrate is metallurgical combination. Through special equipment, the use of automatic welding process, the high hardness self-protection alloy welding wire evenly welded on the substrate, composite layer number of one layer to two layers or even multilayer, composite process due to the alloy shrinkage ratio is different, uniform transverse crack, which is the remarkable characteristics of wear-resistant steel plate.
3, the gold wear-resistant layer is mainly chromium alloy, but also add manganese, molybdenum, niobium, nickel and other alloy components, metallographic structure in the carbide fiber distribution, fiber direction and surface vertical. The microhardness of carbide can reach HV1700-2000, and the surface hardness can reach HRC58-62. Alloy carbide has strong stability at high temperature, maintain high hardness, but also has good oxidation resistance, under 500℃ completely normal use.
Wear-Resisting Plate,Wear Steel Plate,Abrasion Plate,Abrasion Steel Plate
Shandong Panhua Metal Material Co. LTD , https://www.panhuametal.com