Electrical and mechanical safety information – Precautions for server and network products

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Safety & Comfort Guide

Precautions for server and network products

In addition to the general precautions described earlier, be sure to observe the following precautions when operating server and network products. Failure to observe these precautions could result in fire, bodily injury, and damage to the equipment.

Safety interlocks and enclosures

To prevent access to areas containing hazardous energy levels, some servers are provided with safety interlocks that disable the power supply when the enclosure cover is removed. For servers provided with safety interlocks, observe the following precautions:

	•	Do not remove enclosure covers or attempt to defeat the safety interlocks.
	•	Do not attempt to repair accessories and options inside interlocked areas of the system while operating. Repair should be performed only by individuals who are qualified in servicing computer equipment and trained to deal with products capable of producing hazardous energy levels.

Accessories and options

Installation of accessories and options in safety interlocked areas should performed only by individuals who are qualified in servicing computer equipment and trained to deal with products capable of producing hazardous energy levels.

Products with casters

Products provided with casters should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the product to overturn.

Floor standing products

Be sure the bottom stabilizers on the equipment are installed and fully extended. Ensure that the equipment is properly stabilized and supported before installing options and cards.

Rack-mountable products

Because the rack allows you to stack computer components vertically, you must take precautions to provide for rack stability and safety:

	•	Do not move large racks by yourself. Due to the height and weight of the rack, HP recommends a minimum of two people to accomplish this task.
	•	Re working on the rack, be sure the leveling jacks (feet) extend to the floor and that the full weight of the rack rests on the floor. Also install stabilizing feet on a single rack or join multiple racks together before starting work.
	•	Always load the rack from the bottom up, and load the heaviest item in the rack first. This makes the rack bottom-heavy and helps prevent the rack from becoming unstable.
	•	Ensure that the rack is level and stable before extending a component from the rack.
	•	Extend only one component at a time. The rack may become unstable if more than one component is extended.
	•	Use caution when pressing the component rail release latches and sliding a component into the rack. The slide rails could pinch your fingers.
	•	Do not extend the components from the rack too quickly as the moving weight may damage the supporting rails.
	•	Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80% of the branch circuit rating.