Although the production of high and low voltage switchgear complete set is simple, but because of the cost, many new people are restricted to contact, so as not to cause unnecessary losses. Although some personnel have the opportunity to contact, but because there is no good master with, it is difficult to start. Copper row production needs to think, no cookie-cutter, but do more can practice. The following hundred million electric with you to see the high and low voltage switchgear sets copper production skills.
1. Safety:
Before making copper bars, we should understand the safe creepage distance of various cabinets so as to have a reasonable idea. Low-voltage cabinet and relative must have more than 20 mm, although 3ccc standard for 0.8 mm, the industry requirements of 20 mm is mainly from the safety of electricity, so must do more than 20 mm. The safe distance for high voltage 10KV is above 125mm. Some companies' standard is 130mm. The safe distance for high voltage 35KV is 300mm, and some companies require about 280mm.
2. Bronze medal size:
The general size of the use of copper according to the company's own carrying capacity standard, but the general use of copper in the industry is basically the same. Rated current 125A USES 15*3, 200A USES 20* 3,400, A USES 30*4, 630A USES 40*6 or 50*5, 800 USES 40*10 or 50*8, 1600A USES 100*8, 2000A USES 100*10, 2500A USES 100*8, 3000A USES 100*10, 3500A USES 120*10, and 4000A USES 120*10. The copper bar on the knife switch: 600 $40*5, 1000 $60*6, 1500 $80*8, 2000 $100*10 and so on.
3. Measurement:
Measurement is made of copper platoon, difficulties for will, but the main or find for reference or basis points, GGD outlet ark, for example: on the measurement of knife switch contact to the bus bar height, can be in in bus bar clamp side beam above a beam, first of all, it is base point with between the beams, measure the height of the beam to the bus on the side, and measured the height of the beam on the knife switch contact, the addition of two Numbers is concluded that the height of the copper platoon, copper platoon bending Angle can be measured in column is the most basis points, the distance measure column to ABC three-phase busbar, again measured column, the distance to the knife switch contact such size of copper platoon out of the midnight. The copper bar measurement method in other places is the same.
4. Production:
Make the copper bars according to the measured size. Note that the joints between the copper bars should be opened according to international standards. One M12 screw in a 40-wide copper row, two M10 screws in a 50-wide copper row or one M16 screw, four M10 screws in a 60-wide copper row, four M12 screws in an 80-wide copper row, four M16 screws in a 100-wide copper row, and four M18 screws in a 120-wide copper row. There should be embossed copper bar joints, and plating treatment. After completion, use yellow, green, red and blue color separation heat-shrinkable tube sleeve.
5. Installation:
In the installation of copper bars should pay attention to the alignment of the joints, no protruding water calcaneum, screw tight.
Main products: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.
