What specifications are used for the dense bus current carrying capacity of 1700A

If 100*10 or 120*8 can be used, the copper busbar of 100*10 can pass the rated current of 2000A; The 120*8 copper busbar can pass the rated current of 1920A, and it is better if the 150*6 copper busbar is used; Because the thickness of the copper bar is small, the width is large, the heat dissipation area is large, and the temperature rise will be lower, the 150*6 copper busbar can pass the rated current of 1800A, and the rated current through the calculation can be greater than 1700A.

When carrying large currents, it is recommended to use copper busbars and do not use aluminum, although it saves costs, but there are few overloads in the future.

100*10 or 120*8 copper busbar can be used. The 100*10 copper busbar can pass the rated current of 2000A; The 120*8 copper busbar can pass the rated current of 1920A.

Dense bus is that the conductor is covered with insulating materials, there is no air separation between the conductors, and the bus system as a whole directly dissipates heat outward, with a large heat dissipation area and low temperature rise. The compact form factor saves a lot of space and is easy to transport and install. There is no continuous space in the busbar and no air flow, which avoids the chimney effect and enhances safety.

The current carrying capacity, stability and service life are better than those of the air type and the air reinforced type.

The busbar refers to the copper or aluminum bar connecting the total switch in the electrical cabinet and the switch in each branch circuit in the power supply system. The surface is insulated, and the main function is to use it for wires.

There is no standard for this. The current carrying capacity is related to the current level and the usage environment.

The heat generated is proportional to the square of the current and is not linear with the current.

The current carrying capacity is also related to the use environment, and if the heat dissipation performance of the device is good, it can be larger.

Generally, the drawings are not marked with four-core busbars and five-core wires, and there are not many of them, if they use five-core wire drawings or other specifications, they will be mentioned.

The national standard has no specific requirements for the bus copper bar, but the current carrying capacity of the copper bar is indeed specified, and the copper bar can be selected according to the current carrying capacity.

Rectangular bus ampacity:

At 40, the current carrying capacity of the copper bar = the width of the row * the thickness factor.

Row width (mm); The thickness coefficient is: 20 when the busbar is 12 thick; 10 thick when 18; In order: [12-20, 10-18, 8-16, 6-14, 5-13, 4-12].

Double-layer copper bar [40] = single-layer copper bar [40] (according to the cross-section size).

3-layer copper bar [40] = 2 single-layer copper bar [40].

4-layer copper bar [40] = single-layer copper bar [40] * This type of option is not recommended, it is better to replace it with a special-shaped busbar).

Copper bar [40] = copper bar [25 ]*

Aluminum bar [40] = copper bar [40].

For example, find TMY100*10 current carrying capacity as:

Single-layer: 100*188=1800 (a) [1860a in the manual];

The ampacities of double-layer: 2 (TMY100*10) are: 1860*; [Reference manual 2942a];

The current carrying capacity of three layers: 3 (TMY100*10) is: 1860*2 3720 (A) [3780A in the manual].

All of the above calculations are accurate enough to be fairly close to the manual data.

The arrangement of each manufacturer is different, and the specific 3C test report shall prevail, and the standard is.

There is no mandatory standard for the size of the busway copper bar. The approval of the bus CCC mainly depends on whether the type test is qualified. A qualified busbar is a specification approved by the state for you to use.

The conventional 5000A bus duct is different according to the structural form and production process level, and the busbar cross-section is also different. At present, the smallest cross-section used in the enterprises I have contacted is that the temperature rise of the CCC type test is only 60K.

How good should world peace be, no more the smell of blood all over the ground, no more "sea of blood", no more pain of losing family members, no more .......

Now I finally think that the United States is the most vicious country, and I have seen newspapers and television news everywhere that the people of Iraq are dying in the streets because of the brutality of American soldiers; The elderly, women and children are not clothed; The skin and bones are really miserable, and the newspaper clearly sees a teenager who has just blown off his hands......Why war? Can anyone tell me. Isn't it just to expand one's territory; Isn't it just to want to be a world hegemon.

But we breathe the same air on the same earth, all flesh and blood born of our parents, so why should human beings kill each other? I wondered, and I deeply sympathized with the people of Iraq. I heard that the United States is very environmentally conscious and does not hunt wild animals, but now it is people who are dying!

Are the people of other countries inferior to animals?! What is the reason of heaven!

If there is really anything wrong with Iraq, and the United States really wants to be the world's policeman, is there no other solution? Do you have to go to war? Can you tell me, smart?

Ah, I really hope for world peace, I really hope that the human beings on this earth can live in harmony and create a beautiful homeland, long live peace!

Lilies spread across the earth, white doves skimmed the blue sky, and a child with an olive branch facing the west, smiling, singing, and praying!

On the devastated ground, the cannonballs whistled and whistled, the smoke filled the air, and a small soldier with a dagger in his hand faced the east, melancholy, dazed, and yearning!

They were originally brothers, but they were separated in the war, one went to the peace zone, the other fell into the war zone, and their fate changed immediately.

We need peace, and war is the source of tragedy.

I had a dream in which my brother sat on a green field and played happily.

If it is a closed bus duct, the current carrying capacity of the copper bar should be slightly larger.

Try to compare this kind of thing in the store where you buy electrical appliances, and you can't use it if you buy it wrong!

One by one v should be spared about one v one v one v v and observer countries to eat.

For uh uh

The dripping vinegar of Ou recovery i oh forehead can't i that i hou e feelings i before and after are looking forward to my penguin.

Specifically, you can also look at the standards, which are all involved.

There is also a **, you can search for it online.

In addition, you can find it directly according to the manufacturer's copper bar manual.

Rectangular bus ampacity:

At 40, the current carrying capacity of the copper bar = the width of the row * the thickness factor.

Row width (mm); The thickness coefficient is: 20 when the busbar is 12 thick; 10 thick when 18; In order:

Double-layer copper bar [40] = single-layer copper bar [40] (according to the cross-section size) 3-layer copper bar [40] = 2 single-layer copper bar [40].

4-layer copper bar [40] = single-layer copper bar [40] * This type of option is not recommended, it is better to replace it with a special-shaped busbar).

Copper bar [40] = copper bar [25 ]*

Aluminum bar [40] = copper bar [40].

For example, find TMY100*10 current carrying capacity as:

Single-layer: 100*18 1800(a) 1860a for the manual;

The current carrying capacity of double-layer:2 (TMY100*10) is:

1800*；[Reference manual 2942a];

The current carrying capacity of three layers: 3 (TMY100*10) is:

1860*2 3720(a) The reference manual is 3780a

Professionally, it is required that each ampere is one square millimeter in the distribution cabinet. This formula is required because there are many factors to consider and must be done.

Specifically, you can also look at the standards, which are all involved. In addition, you can find it directly according to the manufacturer's copper bar manual.

Rectangular bus ampacity:

At 40, the current carrying capacity of the copper bar = the width of the row * the thickness factor.

Row width (mm); The thickness coefficient is: 20 when the busbar is 12 thick; 10 thick when 18; In order:

Double-layer copper bar [40] = single-layer copper bar [40] (according to the cross-section size) 3-layer copper bar [40] = 2 single-layer copper bar [40].

4-layer copper bar [40] = single-layer copper bar [40] * This type of option is not recommended, it is better to replace it with a special-shaped busbar).

Copper bar [40] = copper bar [25 ]*

Aluminum bar [40] = copper bar [40].

For example, find TMY100*10 current carrying capacity as:

Single-layer: 100*18 1800(a) 1860a for the manual;

The current carrying capacity of double-layer:2 (TMY100*10) is:

1800*；[Reference manual 2942a];

The current carrying capacity of three layers: 3 (TMY100*10) is:

1860*2 3720(a) The reference manual is 3780a

If you see if the amperage required is large, it is recommended to use the micro-power bus duct to illuminate the bus duct, I hope it can help you.