20
021-511-B3-004, Rev. D
4.0 Installation,
continued
4.6 Enclosure
Grounding
The diagram below describes recommended grounding for MPS series enclosures. In areas
of signifi cant lightening activity, it is highly recommended these grounding procedures are
followed.
•
Alpha Technologies recommends using the grounding method illustrated below. The grounding method
for a particular site will be dependent upon soil type, available space, local codes, NEC (National
Electric Code), and other site-specifi c characteristics.
•
Alpha Technologies recommends 5 ohms maximum ground resistance between enclosure and ground
rods, in accordance with IEEE 1100-1999 Powering and Grounding Electronic Equipment.
•
Alpha Technologies assumes no responsibility or liability for failure of the installer to comply with the
requirements of all applicable local and national codes. Where allowed, exothermic welding may be
used as an alternative to Burndy clamps and connectors.
ATTENTION:
Make connection with #10 ring
lug using #6AWG copper wire
8' ground rod (may require additional
ground rods to meet NEC minimum
grounding standard (25 Ohms or less)
Connection made with Burndy connector
(P/N YGHP58C2W-2TN or equivalent)
Fig. 4-5, Recommended Ground Wire Installation
