Custom Search
|
|
|
||
 MIL-HDBK-1023/4
(3) Figure 35 illustrates two load-to-load shorts. Notice that the lights in this
condition are affected, causing the area between the two shorts to dim on both loads.
= ON
= DIM
= OFF
L1-A L2-A
L1-B L2-B
ON
OFF
A
B
REGULATOR
REGULATOR
THIS CONDITION CAN BE DETECTED BY MEGGER TESTING RESISTANCE
BETWEEN LOAD "A" AND LOAD "B."
HAZARD EXISTS TO PERSONNEL WORKING ON EITHER LOAD "A" OR "B" WHEN
THE OTHER LOAD IS ENERGIZED.
Figure 35
Two Load-to-Load Shorts
If the illuminated lights on the B load were to go unnoticed, the presence of this condition could
easily be confused with symptoms of two grounds on a single circuit. The give-away is the
portion of the B load lights that are on.
Driving the circuit would locate the bright/dim transitions and the location of the shorts.
Had the load between the shorts of load A been much larger (more lights) than the load in
between the shorts of load B, the smaller load would have been brighter. In the illustration, the
loads between the shorts are equal and the current is divided equally between the two loads.
100
|
 
|
|
|
||
