Electrical distribution box failure caused by improper selection due to manufacturing capacity of AC contactor choose not very appropriate for different outlet circuit installed with the capacity of AC contactor, and did not take into account the three-phase unbalanced load, without Part outlet can contact current rating in the normal selection model based on a current level of choice to improve our professional custom various explosion-proof products: Explosion distribution box, explosion-proof switchgear, explosion-proof lighting, explosion proof fan lights bxm distribution box, please call to discuss the transformation of the rural power distribution box was due to demand for large quantities, short construction period, distribution boxes for low voltage electrical plants need urgent delivery time and quantity, thus creating the product quality requirements are not stringent The phenomenon, caused some product into operation shortly after the failure. Some models, such as AC contactor soon bxk proof distribution box, on account of the contactor coil burned out after closing the distribution box and put into operation, and can not run. 1.3 electrical distribution box failure caused by improper selection due to manufacturing capacity of AC contactor choose not very appropriate for different outlet circuit installed capacity of exchanges and contacts with proof distribution box, and did not take into account the three-phase load imbalances, but failed to qualify partial contact current rating in the normal selection model based on a current level of choice to improve 2.1 for improved distribution transformer capacity at 100kV · A and above power distribution box, the box thermal windows within the side wall of the explosion-proof electrical cabinet, should take into account the installation of the thermostat relay (JU-3 type or JU-4 ultra-small temperature relay) and axial fans, electrical control panel mounted on the left side of the box side on the body, so that the inside temperature reaches a certain value (eg 40 ℃) can automatically start the exhaust fan, exhaust heat to make the box forced cooling. bxm53 proof power distribution box, 20-year Koretoyo proof, explosion-proof distribution box Handan Koretoyo proof by Zhejiang Electric Co., Ltd. Tianjin offices. Zhejiang Koretoyo explosion-proof electrical Ltd. Tianjin Office (#) is Tianjin, explosion-proof lighting leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Koretoyo explosion in leadership with the staff warmly welcome all inquiries to discuss, but to create a better future abundance of proof.