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INSTALLATION-SITE REQUIREMENTS
SECTION 100-816-202
MARCH 1993
5)
6)
If a reading of zero volts on one terminal, and
a reading of 100 - 120 VAC on the other
terminal is obtained, remove both probes from
the outlet.
Set the meter to the “OHMS/Rxl”scale. Place
one probe on the ground terminal, and the
other probe on the terminal that produced a
reading of zero volts. The reading should be
less than 1 ohm.
4.20 Alternate or Additional Ground
4.21 If the “third wire” AC ground can not practi-
cally be improved or if extreme motor noise or
other disturbance causes system malfunction, or if
local area lightning storms exist, a separate direct
ground may be warranted.
4.22 Connect a separate earth ground from a cold
water pipe or earth grounding rod directly to the FG
screw terminal on the DK8/DK16 power supply.
See Figure 4-5 of
Section 100-816-204
(for
STRATA DK8) or Figure 5-8 of
Section 100-816-
205 (for STRATA DK16).
CAUTION!
If the reading is more than one ohm, then
the outlet is not adequately grounded.
7) If the above tests show the outlet is not properly
grounded, the condition should be corrected
(per Article 250 of the National Electrical Code)
by a qualified electrician before the system is
connected.
2-4