Megger ATEC 210415 Series, Manual

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M
20
AVTM21-415Ja Rev. A June 2005
2. The Test Set must be within 10 feet of the high-voltage
terminal of the apparatus to be tested.
NOTE: For operator safety, the output cable should be fully
extended to provide maximum distance between the operator and the
high-voltage terminal.
3. A reliable ground connection must be within 12 feet of the
Test Set.
4. If an electrical service outlet is not within range of the 5 ft.
input cable, a UL-approved extension cord rated for 15
amperes (minimum) and not longer than 50 feet may be
used.
5. The operator of the Test Set must be ab l e to conduct the
test without being exposed to traffic hazard; he must have
free access to all controls and be able to read the meters
and panel markings easily w i thout approaching energized
high-vo l tage termina l s.
CONNECTIONS PROCEDURE
1. Connect the Test Set ground lead to the panel and to the
local ground.
G
CAUTION
For safe operation this separate ground cable
must be used. The green wire of the input cable
provides a parallel path but cannot be relied on
to provide an adequate ground path for the
panel.
2. Connect the output cable clip to the high-voltage terminal
of the apparatus to be tested. (See below under
Clearances.)
3. If guard is not in use the output cable shield must not be
grounded. Grounding this shield will short-circuit the
megohmmeter; the set, therefore, will not register a
resistance measurement.