Grace Technology R-3D2 Serie Instructions D'installation Et D'utilisation page 7

7 . Verifying Proper Operation: First disconnect all equipment that may introduce a hazard and notify personnel
before powering the panel!
TURN POWER ON. With up to 600V 3~ applied, the L1, L2, and L3 indicators should flash or glow according model
respective to "FLASH RATE" Specifications above. The type of power system grounding configuration determines
if the GND indicator normally indicates (See GND Indicators, PG. 15).
8. TURN POWER OFF. All indicators should be extinguished. Note: If only a single LED illuminates for any (2)
indicator pairs, STORED ENERGY is likely present and must be removed or discharged. All indicators must be
extinguished or a shock hazard is present on the monitored lines. Use this procedure to insure proper grounding:
To complete proper installation, verify proper grounding of the GND lead-wire.
9. Use this procedure to insure proper grounding:
a. Complete normal installation and apply power to the R-3D2, if the GND LEDs do not illuminate, proceed
to step b.
b. Remove power and re-establish an electrical safe work condition to allow one phase lead-wire to be discon-
nected from its source by either disconnecting wire or pull a fuse.
c. Re-apply power and verify that the GND LEDs and Neutral (N) LEDs for Wye models now illuminate. If not,
remove power & provide current with a 1M-2M ohm 1W resistor temporarily connected from any phase to
ground. Repeat step c.
d. To complete installation, disconnect power before removal of step c.) resistor & to restore the phase
lead-wire or fuse. Reapply power to reverify that L1, L2, & L3 LEDs illuminate.
BEFORE OPENING A PANEL, TURN POWER OFF! (Steps 1-9 must first verify proper operation of indicators.)
SAFETY PROCEDURES STILL APPLY: Before working on an electrical conductor, verify zero electrical energy with
proper voltage testing instrument and the proper procedure as per NFPA 70E 120.1(5), 120.2 (F)(2)(f)(1-6), OSHA
1910.333(b)(2)(iv)(B).
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