Home > Knowledge > Content

What is the three-phase short-circuit capacity of the protection system of the cross arm hoop

Jul 31, 2020

What is the three-phase short-circuit capacity of the protection system of the cross arm hoop


The wide applicability has been widely recognized by many users in the industry. The product can be used in ambient air without conductive dust, corrosive gas, and flammable, explosive and other hazardous environments. The fuse rated voltage when selected Must match the rated voltage of the protected equipment. If the rated breaking capacity is too large, it is possible that the three-phase short-circuit capacity of the protected system is less than the lower limit of the rated breaking capacity of the fuse, which makes it difficult to extinguish the arc when the melt is melted, which eventually leads to accidents such as burnout and explosion of the melt tube. The rated current of the tool should be greater than or equal to the rated current of the melt. Ensure that the three-phase short-circuit capacity of the protected system is less than the upper limit of the rated breaking capacity of the fuse, but it must be greater than the lower limit of the rated breaking capacity.


Back