Everyone in the purchase of low voltage switch cabinet time to pay attention to several issues. 1. The clear positioning is complete set of high voltage switchgear products, although hundreds of domestic manufacturers, but its core components are still imported products, if you encounter technical problems, equipment maintenance and replacement is too much trouble, therefore, Abundant in the budget situation, should try to choose well-known brands, because of its well-stocked, solve problems encountered efficiency is relatively high. 2. Inlet and outlet switchgear conventional inlet and outlet There are basically two kinds of connections: (1) Cable Cable chamber is connected into the outlet, (2) into the outlet from the top of the cupboard wall bushing lead, and with the bus bridge is connected to the bridge and then by bus Wall bushing connected to overhead lines. A small number of users, introduced by cable cable rack Roof, cabinet connection Roof connection, a separate security grid. Users provided when ordering a system diagram and the standard program, but into the round can not fully express very clearly, the user should the actual site installation requirements technical agreement was duly explained, difficulties to the site installation. The circuit breaker breaking capacity on a system diagram the right choice, the choice of circuit breaker, breaker models show, rated voltage, rated current things, circuit breaker capacity must be selected. User drawings, circuit breaker capacity is not selected, so the manufacturer for difficult engineering design, breaking capacity selection should be based on the system short-circuit parameters to select, if manufacturers do not understand the system it is very difficult to make the right short-circuit parameters Choose. Some users also drawing low voltage, short circuit without considering the system parameters, the blind selection of high breaking parameters, resulting in unnecessary waste of money. Correct choice of breaking capacity is very important, both to ensure the safe operation, but also taking into account the lower cost of the product. 4. High Voltage Switchgear larger low voltage switch cabinet material purchases, low voltage equipment, cabinet material impact on the price great, under normal circumstances, the component-holder, adopted imported aluminum zinc plate voltage switch manufacturers, The door is used 300 series of high-quality steel. The main difference between the low voltage difference between the low voltage switch equipment devices: insulation class is different. Such as low-voltage switchgear, requires work in the 380V system, pressure level according to the rated voltage 380V class designed, manufactured and tested. The 10kV switchgear, pressure level according to the rated voltage of 10kV would require consideration. Neihuang low voltage, learning Connaught electrical, low voltage switch roles by learning Connaught Mechanical and Electrical Equipment Co., Ltd., Henan. Neihuang low voltage, learning Connaught electrical, low voltage switch is the role of learning in Henan Connaught Electrical and Mechanical Equipment Co., Ltd. (www.hnxinuo.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or image on the telephone, to obtain the latest information, contact: Yang Yongjie.