Sandwich busbars are conductive materials used for power transmission and distribution, typically consisting of two layers of conductive material (such as copper or aluminum) and an insulating layer in between, forming a sandwich-like structure. This design offers several advantages in electrical systems:
High Conductivity: The use of high-quality conductive materials allows sandwich busbars to effectively transmit electrical current, minimizing energy loss.
Excellent Insulation: The insulating layer in the middle provides excellent electrical insulation, ensuring safety and preventing short circuits.
Compact Design: The sandwich structure makes the busbars more compact, facilitating installation in limited spaces, suitable for various electrical equipment and distribution systems.
Corrosion Resistance: Many sandwich busbars come with anti-corrosion coatings, maintaining good performance in harsh environments and extending their lifespan.
Easy Installation: The design of sandwich busbars allows for a straightforward and quick installation process, reducing construction time and costs.
|
Rated Current (A) |
Resistance (10-6Ω/m) |
|
|
Copper |
Aluminum | |
|
100 |
368.3 |
404.7 |
|
160 |
368.3 |
404.7 |
|
200 |
368.3 |
404.7 |
|
250 |
368.3 |
404.7 |
|
400 |
248.0 |
306.8 |
|
500 |
213.6 |
248.8 |
|
630 |
213.6 |
210.3 |
|
800 |
168.2 |
163.0 |
|
1000 |
139.5 |
141.0 |
|
1250 |
112.3 |
112.5 |
|
1350 |
96.6 |
101.7 |
|
1600 |
82.8 |
90.8 |
|
2000 |
66.5 |
74.8 |
|
2300 |
54.6 |
66.6 |
|
2500 |
44.9 |
62.2 |
|
3150 |
34.5 |
40.2 |
|
3800 |
29.6 |
33.3 |
|
4000 |
27.9 |
31.1 |
|
4500 |
22.5 |
/ |
|
5000 |
20.5 |
|
Sandwich busbars are widely used in substations, distribution rooms, industrial equipment, and large building power distribution systems, making them an essential component in modern electrical engineering.
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