Ac Power Electrical Safety Guidelines - Juniper SRX345 Hardware Manual

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AC Power Electrical Safety Guidelines

Copyright © 2019, Juniper Networks, Inc.
Never assume that power is disconnected from a circuit. Always check the circuit before
starting to work.
Carefully look for possible hazards in your work area, such as moist floors, ungrounded
power extension cords, and missing safety grounds.
Operate the services gateway within marked electrical ratings and product usage
instructions.
For the services gateway and peripheral equipment to function safely and correctly,
use the cables and connectors specified for the attached peripheral equipment, and
make certain they are in good condition.
In Case of Electrical Accident

AC Power Electrical Safety Guidelines

CAUTION: For devices with AC power supplies, an external surge protective
device (SPD) must be used at the AC power source.
The following electrical safety guidelines apply to AC-powered devices:
Note the following warnings printed on the device:
"CAUTION: THIS UNIT HAS MORE THAN ONE POWER SUPPLY CORD. DISCONNECT
ALL POWER SUPPLY CORDS BEFORE SERVICING TO AVOID ELECTRIC SHOCK."
"ATTENTION: CET APPAREIL COMPORTE PLUS D'UN CORDON D'ALIMENTATION.
AFIN DE PRÉVENIR LES CHOCS ÉLECTRIQUES, DÉBRANCHER TOUT CORDON
D'ALIMENTATION AVANT DE FAIRE LE DÉPANNAGE."
AC-powered devices are shipped with a three-wire electrical cord with a grounding-type
plug that fits only a grounding-type power outlet. Do not circumvent this safety feature.
Equipment grounding must comply with local and national electrical codes.
You must provide an external certified circuit breaker (2-pole circuit breaker or 4-pole
circuit breaker based on your device) rated minimum 20 A in the building installation.
The power cord serves as the main disconnecting device for the AC-powered device.
The socket outlet must be near the AC-powered device and be easily accessible.
For devices that have more than one power supply connection, you must ensure that
all power connections are fully disconnected so that power to the device is completely
Chapter 7: Safety and Compliance Information
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