Digital Equipment HA3000, Руководство по установке

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INSTALLATION 4–35
4.6.3.2 Output Cable Installation
Follow the procedure below to install the output cables.
1. Remove the appropriately sized knockout plug from the conduit panel located below
the panelboard.
2. Remove the locknut and bushing from the fitting at the end of the cable and use
them to install the cable in the knockout hole, feeding the cable conductors through
the hole.
3. Strip the insulation from the end of each cable wire, leaving 5/8-inch exposed copper
wire.
4. Connect the cable wires to their respective terminations as shown in the following
chart:
Color Signal Termination
White Neutral Neutral Bus
Black Phase A Top CB Terminal
Red Phase B Middle CB Terminal
Blue Phase C Bottom CB Terminal
Green Ground Ground Bus
NOTE
Consult local electrical codes for color code variation.
5. Check all connections for proper tightness.
6. Install all covers previously removed, using the original hardware.
7.
IDENTIFY THE OUTPUT CIRCUIT BREAKERS ON THE DISTRIBUTION COVER PANEL
NAMEPLATE.
4.6.4 Non-Digital Output Cables
Digital employs a "Single Point Grounding Strategy" to provide a single point of reference
for computing equipment. If the customer decides to purchase Digital’s power distribution
cable assemblies (UL Listed), the single point reference goal will be achieved by the very
design and implementation of the cables.
The body of these cables are constructed of a liquid-tight flexible metal conduit. They
employ an isolated ground type receptacle and a metal outlet box. The internal
conductors provide the appropriate number of insulated phase conductors (receptacle
dependent), an insulated neutral (receptacle dependent), and two insulated ground
conductors. In the cable, one of these ground conductors is attached to the grounding
lug on the receptacle and the other is attached to the metal outlet box. At the UPS
Distribution Cabinet end of the cable, both ground wires are connected to the same
ground busbar, the phase conductor(s) are connected to a circuit breaker, and the neutral
wire is connected to the neutral busbar.