Mx240 Dc Power Electrical Safety Guidelines - Juniper MX240 Hardware Manual

MX240 DC Power Electrical Safety Guidelines

Copyright © 2019, Juniper Networks, Inc.
Waarschuwing Voordat u aan een frame of in de nabijheid van voedingen
werkt, dient u bij wisselstroom toestellen de stekker van het netsnoer uit het
stopcontact te halen.
Varoitus Kytke irti vaihtovirtalaitteiden virtajohto, ennen kuin teet mitään
asennuspohjalle tai työskentelet virtalähteiden läheisyydessä.
Attention Avant de travailler sur un châssis ou à proximité d'une alimentation
électrique, débrancher le cordon d'alimentation des unités en courant
alternatif.
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.
The following electrical safety guidelines apply to a DC-powered router:
A DC-powered router is equipped with a DC terminal block that is rated for the power
requirements of a maximally configured router. To supply sufficient power, terminate
the DC input wiring on a facility DC source capable of supplying at least 33.3 A @
–48 VDC per input for each power supply. We recommend that the 48 VDC facility
DC source should be equipped with a circuit breaker rated at 40 A (–48 VDC) minimum,
or as required by local code.
Incorporate an easily accessible disconnect device into the facility wiring. In the United
States and Canada, the 48 VDC facility should be equipped with a circuit breaker rated
a minimum of 125% of the power provisioned for the input in accordance with the
National Electrical Code in the US and the Canadian Electrical Code in Canada.
Run two wires from the circuit breaker box to a source of 48 VDC. Use appropriate
gauge wire to handle up to 40 A.
Chapter 7: Safety and Compliance Information
399