What are the considerations for Santak UPS power connection? The following by the Shenzhen Santak UPS power supply senior Installation Engineer for you to talk about what are the points of attention: 1: the range of fluctuations in the city electric voltage should meet the requirements of the Santak UPS power input voltage range. At present, most of the UPS power supply has the function of anti disturbance automatic voltage regulation. There is generally no need to add anti interference AC voltage regulator. If the city electric voltage wave is larger, should be in the Santak UPS power supply before the AC voltage regulator to increase as the input stage of Santak UPS power supply. 2: pick Santak UPS power distribution box used in the switch should not be selection old knife switch, because the switch is switched on or switched off when a pull arc phenomenon, will interfere with the grid; in addition, fuse fuse, current response speed is slow, when the load or Santak UPS power supply circuit, can not be promptly cut off the power supply, which will damage to the equipment. So the air switch should be used, this kind of switch has the function of fast response when the arc is short and the load short circuit, and has the function of leakage protection and over heat protection. The capacity selection of air switches should be moderate, switching capacity over the general assembly caused by the flow or load short circuit, the protection is not the role of too small will often result in interruption of market power. 3: Santak UPS power supply should abide by the manufacturers of the relevant provisions of the product manual, guarantee which is connected with the phase line, neutral wire and ground wire meet the requirements may not be arbitrarily change the corresponding sequence. Due to the backup UPS power supply in city electric power supply, inverter power supply, the use of a single main transformer, so Santak UPS power supply output phase line and the neutral line position is fixed, city power supply neutral line is Santak UPS power supply control circuit of the wire, it must not make a mistake. China is a neutral line right left phase line, the United States is right left phase neutral line. 4: no different ah number, different brands of used batteries. The distance from the external storage battery to the Santak UPS power supply should be as short as possible, the cross-sectional area of the wire should be as large as possible to increase the amount of electricity, reduce power loss on the line, especially in large current work, the loss of the circuit can not be ignored. 5: in order to prevent parasitic capacitance coupling interference, protection equipment and personal safety, Santak UPS power supply must be grounded and the grounding resistance is not greater than 40