HP rp8400 Installation Guide, Third Edition - HP rp8400 Server Series - Page 51

Wiring Check

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AC Power Wiring and Voltage Checks Wiring and Voltage Checks This section details the methods to check wiring and voltage before powering up a new system. WARNING Do not set site AC circuit breakers serving the cabinet(s) to ON before verifying that the cabinet has been wired into the site AC power supply correctly. Failure to do so may result in injury to personnel or damage to equipment when AC power is applied to the cabinet. CAUTION Do not set the cabinet circuit breaker to ON before verifying that AC input power is within limits. Failure to do so may cause damage to equipment. Verify the following items before applying AC power to the cabinet. • Cabinet ground connects to the site electrical system ground and is not left floating or connected to a phase. • AC voltage is within limits. • Safety warning labels on the cabinet are correct. Wiring Check WARNING LETHAL VOLTAGE HAZARD-Hazardous voltages may be present in the cabinet if incorrectly wired into the site AC power supply. Always verify correct wiring and cabinet grounding before applying AC power to the cabinet. Failure to do so may result in injury to personnel and damage to equipment. Always verify that the AC power cable is correctly wired into the AC power supply before applying AC power to the cabinet. Verify the following items before applying AC power to the cabinet: • Cabinet safety ground connects to the site electrical system ground and is not left floating or connected to a phase. NOTE The following identifies the minimum acceptable and the preferred methods of grounding. Use the preferred method whenever possible. • Preferred method of grounding is to connect the green power cord safety ground to the site ground point. This is accomplished through the power cord receptacle wiring. When required, cabinets may be grounded by using grounding straps connected to a site grounding mesh or ground grid. • As a minimum, the green power cord safety ground must be connected to the site ground point. If the cabinet ground is left floating, anyone coming into contact with the cabinet could receive a lethal shock if a component should fail causing leakage or direct connection of phase energy to the cabinet. If the cabinet ground connects to a phase, the cabinet will be over 200 volts above ground, presenting a lethal shock hazard to anyone coming into contact with the cabinet when site AC power is applied to the cabinet. Chapter 4 51

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Chapter 4
AC Power
Wiring and Voltage Checks
51
Wiring and Voltage Checks
This section details the methods to check wiring and voltage before powering up a new system.
WARNING
Do not set site AC circuit breakers serving the cabinet(s) to
ON
before verifying that
the cabinet has been wired into the site AC power supply correctly. Failure to do so
may result in injury to personnel or damage to equipment when AC power is applied
to the cabinet.
CAUTION
Do not set the cabinet circuit breaker to
ON
before verifying that AC input power is within
limits. Failure to do so may cause damage to equipment.
Verify the following items before applying AC power to the cabinet.
•
Cabinet ground connects to the site electrical system ground and is not left floating or connected to a
phase.
•
AC voltage is within limits.
•
Safety warning labels on the cabinet are correct.
Wiring Check
WARNING
LETHAL VOLTAGE HAZARD—Hazardous voltages may be present in the cabinet if
incorrectly wired into the site AC power supply. Always verify correct wiring and
cabinet grounding before applying AC power to the cabinet. Failure to do so may
result in injury to personnel and damage to equipment.
Always verify that the AC power cable is correctly wired into the AC power supply before applying AC power
to the cabinet.
Verify the following items before applying AC power to the cabinet:
•
Cabinet safety ground connects to the site electrical system ground and is not left floating or connected to
a phase.
NOTE
The following identifies the minimum acceptable and the preferred methods of grounding. Use
the preferred method whenever possible.
•
Preferred method of grounding is to connect the green power cord safety ground to the site ground point.
This is accomplished through the power cord receptacle wiring. When required, cabinets may be grounded
by using grounding straps connected to a site grounding mesh or ground grid.
•
As a minimum, the green power cord safety ground must be connected to the site ground point.
If the cabinet ground is left floating, anyone coming into contact with the cabinet could receive a lethal shock
if a component should fail causing leakage or direct connection of phase energy to the cabinet.
If the cabinet ground connects to a phase, the cabinet will be over 200 volts above ground, presenting a lethal
shock hazard to anyone coming into contact with the cabinet when site AC power is applied to the cabinet.