HP Integrity rx8620 Site Preparation Guide, Fourth Edition - HP Integrity rx86 - Page 55

True power, Typical input current, Typical power consumption, Vapor seal

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General Site Preparation Guidelines Delivery Survey 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 can 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. (for example, 1200 W divided by 120 V equals 10 amps). Chapter 2 49

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Chapter 2
General Site Preparation Guidelines
Delivery Survey
49
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
can 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.
(for example, 1200 W divided by 120 V equals 10 amps).