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 MIL-HDBK-419A
SERVICE DISCONNECTING
1. OPEN
MEANS
DISCONNECTS
115v
FROM
NEUTRAL
3 . CONNECT
OHMETER BETWEEN
SECONDARY
2. DISCONNECT
N E U T R A L AND
115v
LOAD SIDE
EQUIPMENT
NEUTRAL
GROUNDING
CONDUCTOR
GROUND
a. SINGLE PHASE
CONDUCTOR
SERVICE DISCONNECTING
MEANS
1. OPEN DISCONNECTS
FROM
SECONDARY
CONNECT OHMETER
BETWEEN NEUTRAL
AND EQUIPMENT
GROUNDING
CONDUCTOR
2. DISCONNECT
GROUND
GROUNDING CONDUCTOR
CONDUCTOR
FROM NEUTRAL
b. THREE PHASE
Figure 1-47. Method for Determining the Existence
of Improper Neutral Ground Connections
1-112
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