Alcatel-Lucent 7750 SR-a4, Руководство по установке, Страница: 64 / 232

Safety Considerations
64 7750 SR-a4 and SR-a8 Installation Guide
Power
DC Power Requirements
• A disconnect device must be provided within 9.84 ft (3 m) of the 7750 SR-a chassis.
• A #8 AWG (maximum) power conductor must be provided for each of the DC input
connections.
AC Power Cord Requirements by Country
The following AC power cord requirements are applicable to all countries:
• The length of the power cord must be at least 6 ft (1.8 m) and a maximum of
9.75 ft (3.0 m).
• All power cords must be approved by an acceptable accredited agency responsible
for evaluation in the country where the power cord set is used.
• The power cord must have a minimum current capacity of 10 A and a nominal
voltage rating of 220 or 240 VAC, as required by each country’s power system. The
power cord must have a minimum current capacity of 12 A for 100V-120 VAC.
• The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC
320 Standard Sheet C13 connector for mating with appliance inlet on the unit.
• The power cord set used with this 7750 SR-a must meet the local safety code and
requirements.
Danger:
• Only trained and qualified electrical service personnel should perform wiring and
cabling to the system.
• All power to the equipment rack or cabinet should be disconnected before the
installation.
• The power cables must be copper and meet your local electric code requirements.
• The circuit breaker is not intended to be used as the chassis ON/OFF switch.
Disconnect the power from the power source to remove power.
• The 7750 SR-a routers with DC PSU modules should be installed only in restricted
access areas (such as dedicated equipment rooms and electrical closets).
• An external circuit breaker no greater than 60 A must be located within a readily
accessible distance of the equipment. This is intended as the disconnect device.