R1 + R2 does not equal (R1+R2) in example in On Site Guide.

[HappyHippyDad]

I have always been a bit confused about boxes 10,12 and 13 in the example of a completed 'Form 4 - schedule of test results'.

I understand why the value we get for R1+R2 (when measured at a socket) is a quarter of the end to end resistances, but why on the form is this not more clear?

Box 10 (R1) and Box 11 (R2) do not equal Box 13 (R1 + R2). Again I understand why, but it just seems wrong to have a box for R1 and a box for R2 but adding them together is not R1+R2.

Its annoying :cuss:

 

[Jay Sparks]

That's because its not R1... Its r1!! And when you measure a radial, you are measuring R1 + R2. So in affect your not adding r1 to r2, although we do this for a ring to see if our readings are correct.

 

[Jdsparky]

Note the use of upper and lower case letters then you will understand better

 

[Geoffsd]

On my forms only 'R' (upper case) values are recorded.

In this case R1 and R2 should add up to R1+R2.

 

[telectrix]

surely your forms have a column for r1+r2 for RFCs?

 

[KAS1]

You're right even in GN3 'Form 4 - schedule of test results' note13 refers to Ring (R1+R2) and not r1+r2 bloody IET lol

 

[Geoffsd]

No. They are Castline Formfill (free).

Do you think it's a mistake?
Doesn't really matter, does it?

You either have to multiply mine by 4 to get 'r' or divide yours by 4 to get 'R'.

 

[KAS1]

should be another column IMO more books=more cash

 

[Geoffsd]

You're right even in GN3 'Form 4 - schedule of test results' note13 refers to Ring (R1+R2) and not r1+r2 bloody IET lol

No that would be correct.

We are refering to the separate columns for L, N & cpc end to end.

 

[jamesBoater]

Page 169 Green OSG, nature of supply parameters, 150Hz !

 

[KAS1]

Perhaps I'm reading it wrong but that's not what GN3 is showing on page 98,99 and 100 or is it

No that would be correct.

We are refering to the separate columns for L, N & cpc end to end.

 

[KAS1]

He said col 13 ????

 

[KAS1]

Where did he mention the N?

 

[KAS1]

I agree............................................................

I have always been a bit confused about boxes 10,12 and 13 in the example of a completed 'Form 4 - schedule of test results'.

I understand why the value we get for R1+R2 (when measured at a socket) is a quarter of the end to end resistances, but why on the form is this not more clear?

Box 10 (R1) and Box 11 (R2) do not equal Box 13 (R1 + R2). Again I understand why, but it just seems wrong to have a box for R1 and a box for R2 but adding them together is not R1+R2.

Its annoying :cuss:

 

[Geoffsd]

He said col 13 ????

Yes but col. 13 IS R1+R2.

He was wondering why cols. 10 (r1) and 12 (r2) do not add up to col 13 because he mistakenly called them R1 and R2.

As I wrote, mine do as they ARE R1 and R2 not r1 and r2.

Col. 11 (rn or Rn) is incidental but the same.

Is that clear?