ReDeal HS 105 User Manual
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Contents
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COVER HS Series – User manualCOMEX S.A. 172.9. Electrical installation – general reqirementsFor safety reasons, it is necessary to install appropriate protections in the form of surgesuppressors or other protective devices in the UPS distribution board. This chapter providesgeneral practical information for installation by qualified electricians. In addition, staff with theappropriate knowledge and authority should be aware of the standards and standardsapplicable to the local market for type and cross-section of wires, their arrangement and theirload capacity. It is recommended to use flexible hoses type LgY or OpD. Detailed installationinstructions are available from your UPS distributor.2.9.1 Power input of UPSThe UPS should be powered from an electrical switchgear equipped with a suitable securitydevice selected for maximum system power and flexible hoses with appropriate current carryingcapacity selected for the protection used.If you need to install RCDs on the UPS power supply, keep in mind that these units should: be sensitive to unidirectional DC current pulses (Class A) not be sensitive to transient current impulses adjustable sensitivity range 0.3 - 1A.The RCD must be sensitive to unidirectional DC current pulses and insensitive to transientcurrent pulses as shown below:Figure 2-19 Circuit breaker designation RCD2.9.2 Battery circuit protectionThe battery required for proper operation of the power supply consists of a standard of 40 12V batteries connected in series. 3 wire installation with center neutral is required, taken froma central connection between battery 20 and 21. The battery circuit must be protected with asuitable fuse that is rated for the power of the UPS.A detailed drawing of the battery installation is shown below:Figure 2-12 Diagram of serial connection of 40 batteries with central neutral point |
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