Alpha Technologies Te41, 48V - Manual (Page 23)

Argus Technologies Ltd. 057-102-C0 Rev B WC
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6.2 Grounding
DANGER
An enclosure that is not properly grounded can present an electrical hazard.
A proper grounding system that meets or exceeds the specifications of the equipment must be designed and
installed prior to or in conjunction with the construction of the mounting scenario. The ground system must be
bonded to the enclosure to ensure a “Common” or “Single-Point” Ground; some examples are:
New builds – Buried ground ring with bare solid conductor to ground rods.
Rooftop – Connection to building steel, water pipes, etc.
Refer to local codes and practices from the local power company. Size to suit.
Only a licensed electrician should connect any AC power and grounding to the enclosure. A dedicated ground rod
is required for grounding the AC load center or panel.
CAUTION
Do not route AC and DC wiring in the same conduit.
Figure 11–Master ground bus and site ground
MGB
Site ground wire studs
6.2.1 Site Ground Wire Entry
Located at the bottom front of the enclosure, there are external ground studs to make the site ground wire
connection.
6.2.2 Master Ground Bus (MGB)
The master (main) ground bus is located in the lower compartment of the enclosure. Terminate to the MGB and to the
external ground ring with either a compression or exothermic connection. Argus recommends a minimum #2 AWG.
6.2.3 Enclosure Chassis Ground (Factory Installed)
The chassis ground is connected to the enclosure frame and equipment racks and is terminated to the MGB
within the enclosure.
6.3 AC Input Power
Verify electrical codes prior to installation. Codes may vary and contain specific conduit and wire
sizes for connection to the AC load center.
Connection to utility power must be approved by the local utility before installing the power
supply.