Conductivity of air type Bus duct: the air type Bus duct has small Skin effect, does not need to be used for capacity reduction, and has small voltage drop. The cable core is multi strand fine copper wire, and a single cable generally does not exceed 1000A. When the capacity is large, it needs to be completed by connecting several cables in parallel. Moreover, the Skin effect of the cable is serious, reducing the current rating, increasing the voltage drop, causing large energy loss, easy aging of the cable, and easy to cause line heating.
Protection grade of air type Bus duct: due to moisture, water seepage, water leakage, fire water pipe rupture, pipeline valve ineffectiveness and water spraying, dust enters during operation or installation, and air type Bus duct with low protection grade is easy to enter water and dust, which may cause short circuit. According to national standards, the minimum protection level is IP20, which means that solid objects less than 12.5~can enter the busbar body. Based on the actual usage location and safety considerations, it is recommended to set the protection level as follows: the floor electrical shaft should reach IP54 to prevent water splashing; Horizontal installation up to IP65, anti water spray.
Short circuit withstand strength of air type Bus duct: short circuit withstand strength refers to the ability of the distribution system to withstand short circuit current in case of short circuit, which is an important technical parameter to ensure safety. Just as all switches (micro circuit breakers, molded case circuit breakers, frame circuit breakers, intelligent circuit breakers, etc.) have breaking capacity, the higher the breaking capacity of the switch, the higher the price. It is very important to reasonably select the short circuit withstand strength of air type Bus duct to match the electrical safety performance of the entire circuit system.