User`s manual

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13
The input power circuit is supplied by the customer. This provides power from the
building source to the DE1 system. This circuit should be a dedicated branch circuit that
is hard wired in conduit. Size the branch circuit feeder conductors according to the
specific power rating of the unit. Refer to the latest edition of National Electric Code
(NEC) for the proper wire size required.
An insulated grounding conductor must be installed as part of the input circuit. Size the
grounding conductor in accordance with NEC and local codes. The manufacturer
recommends a parity-sized ground, with respect to the input power wires.
3-1 INSTALLATION OF EQUIPMENT (continued)
The DE1 is designed to provide superior isolation and protection for sensitive loads. The
DE1 can be wired as a separately derived source that allows the re-establishing of the
ground reference at the output of the DE1. This method of installation will provide
additional load isolation from noise and other disturbances.
DANGER!!
INSURE THAT ALL CODE REQUIREMENTS ARE FOLLOWED IN GROUNDING THE
DE1 AND ITS LOADS. BODILY INJURY OR DAMAGE TO EQUIPMENT MAY
OCCUR IF UNIT IS NOT PROPERLY GROUNDED.
NOTE
The equipment to be connected to the DE1 may require special grounding procedures.
Refer to technical documentation which accompanies that equipment.
3-2 INPUT CONNECTIONS
1. Verify that power source to the unit is OFF, locked and tagged according to
OSHA requirements.
CAUTION