HP LH4r HP Netserver LPr Rack Cabling Guide - Page 35
Determining and Balancing Current Draw on Multiple, Circuits in One Rack
View all HP LH4r manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 35 highlights
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Determining and Balancing Current Draw on Multiple Circuits in One Rack If you use more than one circuits or power line (each including a Power Distribution Unit and an optional Uninterruptible Power Supply) in one rack, attempt to balance the current drawn through each. Plan to plug in components with smaller power requirements and connectors so that they alternate between the circuits. In other words, plug one component into one circuit and the next component into the other circuit. When (in either the 208 or 230/240 VAC case) a 10-amp PDU is daisy-chained to a 16-amp PDU, determine the load to be placed on each. Plug only those combinations of components into the 10-amp PDU whose overall total current draw is less than 10 amperes. Then be sure that the 16-amp PDU total load, including the daisy-chained 10-amp PDU and any other components, does not exceed 16 amperes. NOTE The PDUs will typically run out of power handling capacity before they run out of connector receptacles in multiple LPr rack configurations. 31