2391 practical

[nickjowett]

Hi
I have my 2391 practical in the morning and I am a bit confused about one thing. I have done a lot of single phase testing but very little 3 phase. I know that before you re-energise a single phase installation you check the supply polarity but do you do the same with 3 phase?If so what is the procedure? would you test between each line and between each line to Nuetral and then Earth? Would you check phase rotation at the distribution board? Any tips would be welcomed.

Thanks Nick

 

[ackbarthestar]

I'd agree with this. The 2391 is basically a start, when you get into the real industrial world, it becomes a lot more complex. However, its unlikely that many domestic electricians on a day to day basis will ever have the need to know about phase rotation.

 

[nickjowett]

Thanks again everyone. I passed 2391, well chuffed. Not asked to check phase rotation just live polarity, Ze, Pfc etc.

Nick

 

[ackbarthestar]

Thanks again everyone. I passed 2391, well chuffed. Not asked to check phase rotation just live polarity, Ze, Pfc etc.

Nick

I'm surprised. Its actually part of the assessment.
Which college/training centre did you take your assessment at ?

 

[i=p/u]

get the punjanna out.. well done.. did you have much testing expierience before you taken 23912

 

[SPARTYKUS]

get the punjanna out.. well done.. did you have much testing expierience before you taken 23912

Hi i=p/u .... whats the above ?!