Technical Product Specification

Intel® Server System SR1690WB TPS Environmental and Regulatory Specification
Revision 1.7 47
Intel order number: E72797-009
10.7.1 If AC power supplies are installed:
Mains AC power disconnection: The AC power cord(s) is considered the mains disconnect
for the server and must be readily accessible when installed. If the individual server power
cord(s) will not be readily accessible for disconnection then you are responsible for installing
an AC power disconnect for the entire rack unit. This main disconnect must be readily
accessible, and it must be labeled as controlling power to the entire rack, not just to
the server(s).
Grounding the rack installation: To avoid the potential for an electrical shock hazard, you
must include a third wire safety ground conductor with the rack installation. If the server
power cord is plugged into an AC outlet that is part of the rack, then you must provide proper
grounding for the rack itself. If the server power cord is plugged into a wall AC outlet, the
safety ground conductor in the power cord provides proper grounding only for the server.
You must provide additional, proper grounding for the rack and other devices installed in it.
Overcurrent protection: The server is designed for an AC line voltage source with up to 20
amperes of overcurrent protection per cord feed. If the power system for the equipment rack
is installed on a branch circuit with more than 20 amperes of protection, you must provide
supplemental protection to the server.
10.7.2 If DC power supplies are installed:
Connection with a DC (Direct Current) source should only be performed by trained service
personnel. The server with DC input is to be installed in a Restricted Access Location in
accordance with articles 110-16, 110-17, and 110-18 of the National Electric Code,
ANSI/NFPA 70. The DC source must be electrically isolated by double or reinforced
insulation from any hazardous AC source.
Main DC power disconnect: You are responsible for installing a properly rated DC power
disconnect for the server system. This mains disconnect must be readily accessible, and it
must be labeled as controlling power to the server. The circuit breaker of a centralized DC
power system may be used as a disconnect device when easily accessible and should be
rated no more than 10 amps.
Grounding the server: To avoid the potential for an electrical shock hazard, you must reliably
connect an earth grounding conductor to the server. The earth grounding conductor must be
a minimum 18AWG connected to the earth ground stud(s) on the rear of the server. The
safety ground conductor should be connected to the chassis stud with a Listed closed two-
hole crimp terminal having 5/8 inch pitch. The nuts on the chassis earth ground studs should
be installed with a 10 in/lbs torque. The safety ground conductor provides proper grounding
only for the server. You must provide additional, proper grounding for the rack and other
devices installed in it.
Overcurrent protection: Overcurrent protection circuit breakers must be provided as part of
each host equipment rack and must be incorporated in the field wiring between the DC
source and the server. The branch circuit protection shall be rated minimum 75Vdc, 10 A
maximum per feed pair. If the DC power system for the equipment rack is installed with more
than 10 amperes of protection, you must provide supplemental protection for the server.
10.8 Power Cord Usage Guidelines
Warning: Do not attempt to modify or use an AC power cord set that is not the exact type required.
You must use a power cord set that meets the following criteria:
• Rating: In the U.S. and Canada, cords must be UL (Underwriters Laboratories, Inc.) Listed/CSA
(Canadian Standards Organization) Certified type SJT, 18-3 AWG (American Wire Gauge). Outside
of the U.S. and Canada, cords must be flexible harmonized (<HAR>) or VDE (Verband Deutscher
Electrotechniker, German Institute of Electrical Engineers) certified cord with 3 x 0.75 mm
conductors rated 250 VAC (Volts Alternating Current).
• Connector, wall outlet end: Cords must be terminated in grounding-type male plug designed for use
in your region. The connector must have certification marks showing certification by an agency