Site Preparation Guide, Fourth Editon - HP Integrity rx7620 Server

Appendix B
General Site Preparation Guidelines
Delivery Survey
65
True power In an AC circuit, true power is the actual power consumed. It is distinguished from apparent
power by eliminating the reactive power component that may be present.
Typical input current The operating current of the product measured using a typical load and target
voltage.
Typical power consumption Represents the expected power consumption of a given configuration. The
typical value is the approximate power consumption that a customer will most likely experience and can use
for power budgeting purposes.
U-Z
Vapor seal A vapor seal is an essential part of preventing moisture infiltration into or migration out of a
critical space, such as a data processing center or other room that contains sensitive electronic
instrumentation. Essentially, a vapor seal is a barrier that prevents air, moisture, and contaminants from
migrating through tiny cracks or pores in the walls, floor, and ceiling into the critical space. Vapor barriers
may be created using plastic film, vapor-retardant paint, vinyl wall coverings and vinyl floor systems, in
combination with careful sealing of all openings (doors and windows) into the room.
Watt A unit of electricity consumption representing the product of amperage and voltage. When the power
requirement of a product is listed in watts, you can convert to amps by dividing the wattage by the voltage.
(e.g., 1200 watts divided by 120 volts is 10 amps.