Dc Power Electrical Safety Guidelines - Juniper 3800 Hardware Manual

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DC Power Electrical Safety Guidelines

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Copyright © 2015, Juniper Networks, Inc.
Avvertenza Prima di lavorare su un telaio o intorno ad alimentatori, scollegare
il cavo di alimentazione sulle unità CA.
Advarsel Før det utføres arbeid på kabinettet eller det arbeides i nærheten
av strømforsyningsenheter, skal strømledningen trekkes ut på
vekselstrømsenheter.
Aviso Antes de trabalhar num chassis, ou antes de trabalhar perto de unidades
de fornecimento de energia, desligue o cabo de alimentação nas unidades
de corrente alternada.
¡Atención! Antes de manipular el chasis de un equipo o trabajar cerca de una
fuente de alimentación, desenchufar el cable de alimentación en los equipos
de corriente alterna (CA).
Varning! Innan du arbetar med ett chassi eller nära strömförsörjningsenheter
skall du för växelströmsenheter dra ur nätsladden.
General Electrical Safety Guidelines and Warnings on page 90
Prevention of Electrostatic Discharge Damage on page 65
AC Power Electrical Safety Guidelines on page 91
DC Power Electrical Safety Guidelines on page 93
JSA1500, JSA3500, JSA5500, JSA7500
A DC-powered device is equipped with a DC terminal block that is rated for the power
requirements of a maximally configured device.
NOTE: To supply sufficient power, terminate the DC input wiring on a facility
DC source that is capable of supplying:
Minimum of 60 A at –38 VDC
Incorporate an easily accessible disconnect device into the facility wiring. Be sure to
connect the ground wire or conduit to a solid office earth ground. A closed loop ring is
recommended for terminating the ground conductor at the ground stud.
Run two wires from the circuit breaker box to a source of 38 VDC.
A DC-powered device that is equipped with a DC terminal block is intended only for
installation in a restricted access location. In the United States, a restricted access
area is one in accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical
Code ANSI/NFPA 70.
Chapter 21: Electrical Safety Guidelines and Warnings
93