HP LH4r HP Netserver LXr 8000 Rack Cabling Guide - Page 13
Prevent Electric Shock, Prevent Damage to Components
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Chapter 1 About This Cabling Reference Prevent Electric Shock WARNING Ensure site electrical circuits have reliable earth grounding. Never operate products in any rack enclosure with the ground connector disconnected. Although leakage current from any one device may be minimal, cumulative leakage current of equipment mounted in a rack may exceed 5mA, and could reach 15mA. This level of current can be dangerous, unless a reliable earth ground is in place. Thus, reliable ground circuit continuity is vital to safe operation of this system. WARNING Prevent shock hazard by disconnecting power and telephone cords when you service or install components. Prevent Damage to Components CAUTION Rack optimized products are sensitive to static electricity (ESD). When installing components, take precautions against ESD damage. Wear a wrist-strap and use a static-dissipating work surface connected to the server chassis when handling printed circuit boards, memory devices, and processor chips or modules. Ensure that the metal of the wrist-strap contacts your skin and that the alligator clip is attached to a staticneutral surface. CAUTION Power up the components one at a time. Turning on an entire rack at one time may create damaging and dangerous electrical surges that could trip circuit breakers in the system. Follow instructions in the section titled "Power Up Sequence" to minimize current inrush. 9