14
6.
ELCB checking
Function:
ELCB will cut out the Electric power system, when leakage is approximately 15 mA.
- Disconnect Electric power lines as in the pictures.
- Set Multi meter to Ohm range "Ω" or "
)
)
)
) " and check as shown in the pictures.
- Note the differences in the locations of the multimeter pointers .
Check
Meter Result
Cause
Action
ON
"Beep" signal "
)
)
)
) "
Pass
No action
No signal "OL" or (
∞
Ω)
ELCB damaged
Change new ELCB
OFF
"Beep" signal "
)
)
)
) "
ELCB damaged
Change new ELCB
No signal "OL" or (
∞
Ω)
Pass
No action
ON Position
OFF Position
