The water-cooled chiller is small in size and large in cooling capacity. It adopts world-famous imported compressors. It has excellent low temperature performance, reliability and durability. The product is designed according to the characteristics of industrial applications. The built-in low temperature circulating water pump and stainless steel freezing water tank are extremely convenient to use. The materials are all made of anti-corrosion materials, which can effectively prevent rust and corrosion. The microcomputer LED quantity controller is equipped with temperature display, set temperature, automatic adjustment of frozen water temperature and compressor delay protection function. Famous brand contractors, relays and other electrical components are selected , Equipped with complete indicator lights, switches, operation at a glance, built-in electronic water level indicator and alarm device, low water level automatic alarm, the operator can grasp the water level of the chilled water tank through the control panel, timely water replenishment, unique modular design, each The compressor system is safe and independent. Even if one system fails, it will not affect the normal operation of other systems. Water Cooled Chiller,Water Chiller Unit,Water Cooling Chiller Machine,Water Cooling Chilling Equipment Shenzhen Toyocool Refrigeration Equipment Co.,Ltd. , https://www.toyochiller.com
Are two 2.5 flat cables twisted together equivalent to 5 square wires?
Are two 2.5 flat cables twisted together, equivalent to 5 square wires? Is this right?
In fact, if two 2.5 square millimeter cross-sectional area conductors and a 5 square millimeter cross-sectional area conductor have the same length and the same material, the two 2.5 square millimeter cross-sectional area conductors are twisted and connected to shunt The current carrying capacity of a 5 square millimeter cross-sectional area wire should be similar? (Or the current carrying capacity of the former may be better than the latter). This is because the safe current carrying capacity of two copper conductors with a cross-sectional area of ​​2.5 square millimeters adds up to the safe current carrying capacity of a copper conductor with a cross-sectional area of ​​6 square millimeters.
Two conductors and even multiple conductors are occasionally used in parallel. It can be seen occasionally that the 220KV high-voltage transmission line is two conductors connected in parallel and one phase. The two conductors are separated between the tower and the iron tower, but bypassing the iron tower itself is two conductors and in together. If it is 500KV high-voltage transmission, there are four conductors connected in parallel with one phase.
So: two wires with a cross-sectional area of ​​2.5 mm2 are twisted together and the shunt can temporarily replace a wire with a cross-sectional area of ​​5 mm2.
The combination of the two does not guarantee the average current shunt, because the length of the wire cannot be the same length, and the diameter of the wire cannot be the same, so it will cause one high and one low.The high one is easy to heat and burn the insulation! For example, ten square wires are seven strands of copper core wire, and they are mutually connected together. However, two 2.5 square wires each have insulation, they cannot flow between them, and the uneven shunt is easy to burn out.
Of course, the temporary short-term use is not a problem. If you use it for a long time, it is not recommended to screw it together. Go buy a large wire!