Beha Amprobe GT-800 PRO KITVDE-tester 4472081 Manuel D’Utilisation

GT-600/GT-800 Instruction Manual 

37 

 

 

PRCD Test (CORD/PRCD) (GT-800 only) 

 

The PRCD test function of the GT-800 does a full test of PRCD 2-pole, 3-pole and 
type S (AC types). 
 
Following parameters are tested and measured: 

 

  Visual test 

Confirm pass of visual test by the soft menu key “YES”. 

  Protective bonding continuity R

PE

 

The measurement is carried out by using test current of 5 A (fixed 
parameter). The limit value for R

PE

 is adjustable by using the soft menu key 

“LIM” in idle display mode. Also the limit value can be calculated on bases of 
entered cross section and length of the PRCD cable. 

 

  Insulation resistance R

ISO

 

The insulation resistance is measured on the output side of the PRCD at open 
PRCD switch by using test voltage of 500 V (fixed parameter). The limit value 
for R

ISO

 is fixed and pre-set to 1.00 M

. 

 

  Protective conductor current I

PE

 

The measurement is done in two steps (two mains voltage polarities). The 
polarity is exchanged automatically. The limit value for I

PE

 is fixed and pre-

set to 3.50 mA. 

 

  Functionality of the TEST button 

After pressing the TEST button of the RCD, both L and N conductors must be 
switched off from mains by the PRCD switch. The test result is displayed as 
OK or FAILED. 

 

  Functional test at L disconnection 

The GT-800 disconnects input L terminal, then both L and N conductors must 
be switched off from mains by the PRCD switch. The test result is displayed as 
OK or FAILED. 

 

  Functional test at N disconnection 

The GT-800 disconnects input N terminal, then both L and N conductors must 
be switched off from mains by the PRCD switch. The test result is displayed as 
OK or FAILED. 

 

  Trip out time at I

N

/2 

PRCD must not trip at this current, max. measurement time/range is 300 ms. 

 

  Trip out time at I

N

 

PRCD must trip within 300 ms. 

 

  Trip out time at 5×I

N

 

PRCD must trip within 40 ms. 

 

  Tripping current I



 

The test is carried out by using a ramp current starting at 0.5 I

N

 and 

increasing the test current by 0.05×I

N

 per step up to I

N. 

There are 11 test 

steps, duration 300 ms per step, pause duration is 30 ms. 

 

  Trip out time at tripping current t

/

 I



 

The test is done in previous step, limit value is 300 ms.