IR Test

Simonslimline · Nov 20, 2014

The EFLI needs to be low enough for the protective device to operate in the required DT. The PFC should not be higher than the Icn of the protective device. This is so that the device will safely interrupt and clear the fault without potentially blowing to bits.

imranayaz · Nov 21, 2014

Q. State the two conditions that need to be taken into account when comparing measured and maximum permitted Zs values?

Simonslimline · Nov 21, 2014

imranayaz said:
Q. State the two conditions that need to be taken into account when comparing measured and maximum permitted Zs values?

Can you give you're answers first mate.

imranayaz · Nov 21, 2014

Grouping and ambient temp

imranayaz · Nov 23, 2014

Is this correct?

Marvo · Nov 23, 2014

http://www.electriciansforums.co.uk...-useful-information-2394-a-20.html#post640526

The answers to most, if not all your questions are somewhere in that thread. If you open that thread and look near the top of the page you'll see it says 'search thread'

If you click on it it will give you a small text box where you can type or paste what you're looking for;

If for some reason you don't get the results you were hoping for, also in the same place you can go to an advanced search window which will only search that thread still;