Testboy TV 455VDE-tester Testboy TV 455 Manuale Utente

 
Various test and measurements are required for verification of RCD(s) in RCD protected 
installations. Measurements are based on the EN 61557-6 standard. 
The following measurements and tests (sub-functions) can be performed: 

‰

 

Contact voltage, 

‰

 

Trip-out time, 

‰

 

Trip-out current, 

‰

 

RCD autotest. 

 
 
See chapter 4.1 Function selection for instructions on 
key functionality. 

TEST RCD 

sub-function test [RCDt, RCD I, AUTO, Uc]. 

I

ΔN

 

Rated RCD residual current sensitivity I

ΔN

[10 mA, 30 mA, 100 mA, 300 mA, 

500 mA, 1000 mA]. 

type 

RCD type [ ,  ],  test current waveform plus  starting polarity  [

,

,

,

, 

*, 

*]. 

MUL 

Multiplication factor for test current  [½, 1, 2, 5 I

ΔN

]. 

Ulim Conventional 

touch voltage limit [25 V, 50 V]. 

* Model TESTBOY TV 450 (TYPE B) 
 
Notes:  

‰

 

Ulim can be selected in the Uc sub-function only. 

 
The instrument is intended for testing of General (non-delayed) and 

S

elective (time-

delayed) RCDs, which are suited for: 

 

‰

 

Alternating residual current (AC type, marked with 

 symbol), 

‰

 

Pulsating residual current (A type, marked with   symbol). 

‰

 

Pulsating residual current (A type, marked with   symbol). 

‰

 

Model TESTBOY TV 450 (Type B): DC residual current (B type, marked with   
symbol). 

 
Time delayed RCDs have delayed response characteristics. As the contact voltage pre-
test or other RCD tests influence the time delayed RCD it takes a certain period to 
recover into normal state. Therefore a time delay of 30 s is inserted before performing 
trip-out test by default.