The way in which the Wiener high-voltage busway is selected

In the selection, the following elements should generally be fully considered: fire protection specifications, the insulation layer should be flame retardant, good temperature resistance, it is not easy to release harmful gases at high temperatures, the structure type should avoid the chimney effect, and the use of aggregate insulation layer bus duct should be preferred. For the most important locality, it is advisable to choose a fireproof groove to ensure the persistence of the operation in the fire of the backup power supply.

The way in which the Wiener high-voltage busway is selected

The way in which the Wiener high-voltage busway is selected

As far as the assembly site is concerned, the waterproof level of the tank shell should be considered firstly, and secondly, the influence of the building structure on the appearance design, fixed bracket method and span of the wire duct: the special workplace in the room, such as the large space substation, in order to ensure safety, it is advisable to choose IP30 bus duct; In the general operation in the room, such as the electrical shaft and power distribution room of the building, in order to ensure safety, no less than IP40 bus duct should be selected; The humid environment in the room, or there are splash-proof water specifications, need to be fully considered from the technical specifications, the actual effect of heat dissipation, price and other aspects, at present, there are more choices on the market with high thermal conductivity function, low energy consumption of aluminum shells, low impedance aggregation insulation layer bus duct.

How do I accept a busway?

Let's take a look at the random files of the busway: less is required: a photocopy of the CCC certificate, a photocopy of the test statement, and a quality inspection statement of the busbar using the busway. If necessary, instructions for the use of the bus duct shall be given. Naturally, you should also check the factory nameplate, certificates and more.

The second is the physical inspection and inspection: according to the contract and the bus duct testing statement rules, the size share of the bus bar used in the bus duct must be in line with the corresponding current level of the above size share, and the public service engineering inspection shall be standardized in strict accordance with the rules of GB/T5585. Whether the busway supply method is satisfactory to the contract rules. The basic test of the bus duct: grounding resistance test, AC withstand voltage test, maintenance distribution line continuity test, maintenance level test, mechanical operation test should also be done with plug-in box. According to the inspection, the plug-in test should be carried out.

An important skill in busway quality management

A turn off the "temperature" of the bus duct to ensure the cable current carrying capacity of the bus duct;

B. Turn off the "waterproof level" of the bus duct to ensure the dustproof and waterproof level of the bus duct;

C. Turn off the "short-circuit fault acceptance compressive strength" of the bus duct to ensure the dynamics and heat resistance of the bus duct;

D. Turn off the "PE wire structure" of the bus duct to ensure that the current flow at the end of the bus duct does not seriously endanger personal safety and the safety of electrical equipment;

The "electrical conductor raw material" of the closed bus duct ensures that the resistivity and conductivity of the conductors commonly used in the bus duct comply with the rules and regulations.

The way in which the Wiener high-voltage busway is selected

Sections viewed

Contact

working hours