17th edition 2382 Question(s)

[beatrixtiff]

Can someone reasure me what the correct answer is to this question please?

I answered A, which was wrong (the correct answer is B) as the table 41.5 shows less than or equal to 230v....

14. For a TT System the Maximum earth fault loop impedance for a 100mA

BSEN61008-1 RCD in a 230Volt circuit is

a. 500 Ω

b. 460 Ω

c. 167 Ω

d. 100 Ωered

So is it definitely B?

headbang

 

[Andy™]

answer should be A. touch voltage is 50v. so 50/0.1=500 ohms

 

[beatrixtiff]

Thought so, I got my answer though from table 41.5 though.

Silly revision answers,

Thanks mate.

 

[spinlondon]

Yes, A as the Table is for up to and including 230V.