everynights a 17th edition night

[i=p/u]

ask me questions, see if i can find in appropiate time, no trick ones please only if you have nothing better to do..

 

[topquark]

Recommended height of a firefighters switch please?

 

[i=p/u]

not more than 2.75m from the ground reg 537.6.3, i find it easier by going to index at back, whats your thoughts

 

[clicon357]

Minimum CSA for earth conductor on a TT supply............

 

[topquark]

not more than 2.75m from the ground reg 537.6.3, i find it easier by going to index at back, whats your thoughts

Good. Sometimes, but often you won't find it in the index so you'll need to know which sections are applicable

 

[clicon357]

Good. Sometimes, but often you won't find it in the index so you'll need to know which sections are applicable

I found when taking my 17th and indeed doing the revision questions leading up to it that you could generally pick a key word in the question that you then find in the index...........

 

[i=p/u]

i know in my head it is 6mm but cant find it in regs.. im @ 542.1.6

Minimum CSA for earth conductor on a TT supply............

 

[i=p/u]

feel as if years away of knowing the sections.... index slightly easier, but are they all there... 17th exam in 2 weeks

I found when taking my 17th and indeed doing the revision questions leading up to it that you could generally pick a key word in the question that you then find in the index...........

 

[clicon357]

i know in my head it is 6mm but cant find it in regs.. im @ 542.1.6

Table 54.1...........

 

[topquark]

What is a reduced low voltage system?

 

[clicon357]

feel as if years away of knowing the sections.... index slightly easier, but are they all there... 17th exam in 2 weeks

PM me if u want a bunch of test questions..............all PDFs

 

[i=p/u]

2.5mm protected against mechanical damage , 16mm if not, isit thumbs up???

Table 54.1...........

 

[topquark]

What is the maximum Zs for a circuit protected by a 30A BS3036 Fuse?

 

[i=p/u]

part 2 line to line doesnt exceed 110v and line to earth doesnt exceed 63.5 on 3phase

 

[i=p/u]

1.09 ohms tabe 41.2 and which i would multiply by 0.8 to get my max value in the real world

What is the maximum Zs for a circuit protected by a 30A BS3036 Fuse?

 

[i=p/u]

cheers will do

PM me if u want a bunch of test questions..............all PDFs

 

[i=p/u]

as it is guys ive only started looking at the regs so im pushing myself to pass but learn the destinations of the book..

 

[clicon357]

2.5mm protected against mechanical damage , 16mm if not, isit thumbs up???

It was 2.5mm sq I was looking for......protected against mechanical damage and sheathed

 

[topquark]

What is the required minimum impulse withstand voltage for a 230V installation of category II equipment?

 

[i=p/u]

so does that mean if is 2.5mm it has to be in conduit or trunking ..

It was 2.5mm sq I was looking for......protected against mechanical damage and sheathed