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Table 49: AC Power Cord Specifications for a Single-Phase Wiring Tray
(continued)
Plug Standards
Electrical Specifications
Country/Region
NEMA 6-20 Type N6/20
250 VAC, 16 A, 50 Hz
North America
NEMA L6-20 Type NEMA Locking
NEMA 5-20 Type N5/20
125 VAC, 20 A, 50 Hz
CEE(7) VII Type VIIG
250 VAC, 16 A, 50 Hz
South Korea
SEV 5934-2 Type 23G
250 VAC, 16 A, 50 Hz
Switzerland
BS 1363/A Type BS89/13
250 VAC, 13 A, 50 Hz
United Kingdom
Related
Documentation
AC Power Supply in a QFX3008-I Interconnect Device on page 52
•
•
General Electrical Safety Guidelines and Warnings on page 191
•
AC Power Electrical Safety Guidelines on page 194
•
AC Power Disconnection Warning on page 196
•
Connecting AC Power to a QFX3008-I Interconnect Device with Single-Phase Wiring
Trays on page 239
AC Power Cord Specifications for a QFX3008-I Interconnect Device with Three-Phase
Delta Wiring Trays
Most sites distribute power through a main conduit that leads to frame-mounted power
distribution panels, one of which can be located at the top of the rack that houses the
device. An AC power cord connects each wiring tray to the power distribution panel.
WARNING:
The QFX3008-I Interconnect device is pluggable type A equipment
installed in a restricted-access location. It has a separate protective earthing
terminal provided on the chassis in addition to the grounding pin of the power
supply cord. This separate protective earthing terminal must be permanently
connected to earth.
CAUTION:
Power cords and cables must not block access to device
components or drape where people could trip on them.
Each three-phase AC wiring tray has a metal wiring compartment that contains the AC
terminal block and ground. There are two types of three-phase wiring trays:
delta
(three-wire) and
wye
(four-wire). The
delta
AC terminal block consists of three input
terminals labeled
L1
,
L2
, and
L3
, from top to bottom in the common three-phase naming
convention.
141
Copyright © 2012, Juniper Networks, Inc.
Chapter 10: Planning QFX3008-I Power Requirements
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