Dc Power Electrical Safety Guidelines - Juniper JSA5800 Hardware Manual

Warnung Bevor Sie an einem Chassis oder in der Nähe von Netzgeräten arbeiten,
ziehen Sie bei Wechselstromeinheiten das Netzkabel ab bzw.
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.

DC Power Electrical Safety Guidelines

• 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.
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