Today's 2395

[Newbyspark]

Just finished written and online 2395. Passed online with 90%, found the written pretty hard. Anyone else done it today.

 

[Spark_shark]

Just done the written test, and think it went ok, but will have to wait and see! How did u get on?

 

[long512]

just done the written as a re sit. i had to put in loads of revision so hopefully went well? had a couple of "brain farts" but after checking my notes i'm ok. thought i new enough to get away with just a little revision last time, that cost me £120!!
best bit of advice to anyone else doing it, download and read the examiners report its available to all and gives solid advice.

 

[Newbyspark]

Couple of questions I struggled with. Have wait and see.

 

[Newbyspark]

just done the written as a re sit. i had to put in loads of revision so hopefully went well? had a couple of "brain farts" but after checking my notes i'm ok. thought i new enough to get away with just a little revision last time, that cost me £120!!
best bit of advice to anyone else doing it, download and read the examiners report its available to all and gives solid advice.

How did you work out volt drop question ?

 

[andyk1969]

sat the written tonight also think it was easier than the 2394 i took in december

volt drop question should has been 9.2 volts 0.23 ohms*40amps= 9.2 volts (ohms law)

 

[Spark_shark]

Think it was 0.23X40= 9.2 volts. As this was >11.5 (5% of 239) it's compiles. How about u?

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Beat me to it andy! Lol

 

[Spark_shark]

Less than 11.5 should I say!!

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And 230 not 239*

 

[long512]

How did you work out volt drop question ?

Wrong by them replies! lol
got the correct answer but then looks like i have used an unrequired diversity factor!!
may pick up some marks for the correct equation written down and the correct percentage allowed??

Doubt it though!

 

[wuzz]

I did the exam last night and on that equation I used the correction factor of 1.2 in the equation!!

 

[cmac70]

Done mine last night went a bit brain dead on last question. So hopefully have passed.

 

[tony mc]

Whats a 1.2 correction factor when calculating volt drop ?

Can anyone post the question up ?

I take it from some of the repies that you have a value for either Rn or R1 doubled it and multiplied by the protetive device to get your answers!

 

[Silly Sausage]

Whats a 1.2 correction factor when calculating volt drop ?

Can anyone post the question up ?

I take it from some of the repies that you have a value for either Rn or R1 doubled it and multiplied by the protetive device to get your answers!

I did my 2391 over 10 years ago, this never came up once!
Was mentioned on a recent thread, think you're getting confused with resistance testing.

 

[wuzz]

I can't remember the question word for word but it was something like this, you have combined line resistance of 0.23 and a load of 40amps calculate the voltdrop? I went for 0.23x1.2x40=11.04Vd . 1.2 for the correction factor for the operating temperature at 70·

 

[Silly Sausage]

The vd tables are for conductors running @ 70[SUP]o[/SUP] (etc).
You don't need to compensate, they are the worst case figures.
I'm more than happy to be corrected though!