Zs question

[nickblake]

You normall use the correction factor for designe and currrent calculation etc if you are to find the Zs and know the R1 R2 and the Ze then its Zs = Ze + R1R2

 

[telectrix]

because you are measuring Zs at ambient temp. which is anywhere between 40deg.F and 80deg.F in this country. designed operating temp. of the cable is up to 160deg.F. convert that to foreign temp. comes to 70deg.C. hence the correctin factor

 

[Sparky Ninja]

I know Zs=(r1+r2)+Ze

It's not.

 

[telectrix]

big difference here with upper and lower case letters. i can see why people get confused.

 

[Sparky Ninja]

big difference here with upper and lower case letters. i can see why people get confused.

That's why i always point it out to people. It's one of the most common simple mistakes made in written exams.

 

[telectrix]

maybe an idea for all this R1, r1 etc.etc. to be made clearer for trainers. maybe instaed of using lower case letters for end / end values, it could be renamed as something like S1, Sn, S2. any other thoughts on this?

 

[pushrod]

I know i'm digressing - apologies - what gets to me is the number of people who call 12V as low voltage instead of extra low voltage! Maybe should start a separate thread on these common mistakes.