Testboy TV 455VDE-tester Testboy TV 455 Manuale Utente

 

Time delayed RCDs demonstrate delayed response characteristics. They contain 
residual current integrating mechanism for generation of delayed trip out. However, 
contact voltage pre-test in the measuring procedure also influences the RCD and it 
takes a period to recover into idle state. Time delay of 30 s is inserted before performing 
trip-out test to recover 

S

 type RCD after pretests and time delay of 5 s is inserted for 

the same purpose for 

G

 type RCD. 

 
Modification of the chapter 5.4.1 
 

ΔN

AC 

, 

G

 

1.05

×I

ΔN

 

AC 

S

 

2

×1.05×I

ΔN

 

any 

A 

, 

G

 

1.4

×1.05×I

ΔN

 

A 

S

 

2

×1.4×1.05×I

ΔN

 

≥ 30 mA

A 

, 

G

 

2

×1.05×I

ΔN

 

A 

S

 

2

×2×1.05×I

ΔN

 

< 30 mA

Both models 

B 

 

2

×1.05×I

ΔN

 

B 

S

 

2

×2×1.05×I

ΔN

 

any 

Model TESTBOY TV 450 (Type B) 

only 

ΔN

Technical specifications remain the same.