Avtron 1035409, Руководство пользователя

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Installation
Avtron Outdoor Load Bank • Part Number K875A 1035409
3-8
If external 480 volt power is provided, safe practice dictates that the fan power be wired through a
safety disconnect switch that can be locked out.
LOAD CONNECTIONS
Load connections are made to the 3-phase bus bars located in the Load Bank. (Refer to Outline
Drawing SB2793.) The connections are marked A, B, and C. Cables to the Load Bank should be of
adequate size to handle maximum rated load according to the National Electrical Code and any local
codes.
The ampacities of these load connections are shown on Load Bank Schematic Diagram 1036579.
GROUNDING
A permanent ground conductor must be connected to the Load Bank enclosure by an individual
ground wire to prevent a potential above ground on the enclosure. There is a ground bus bar in the
Load Bank frame for this connection. This ground conductor should be run with the load power
conductors to provide the lowest impedance fault path. The ground bus bar must be connected to
both the power source frame and to a good earth ground. The ground conductor should be sized per
the National Electrical Code Table 250.122, if not superseded by local codes.
If the Load Bank has been idle for more than two months consult factory and refer to Maintenance
section of this manual. Perform the check out and maintenance procedure required.