End to End results

[Frosty69]

Hia people I am having a bit of a divvy moment, where can I find the table in the green osg that shows the resistance for 100m of 2.5 t&e?
Im just wanting to double check my end to end results on the ring are correct.

Thanks

 

[Geoffsd]

I don't have green one but Appendix 9 in red.

Resistance of conductors in index.

If L & N are the same and CPC correct proportion higher, not really necessary to check anything.

 

[ian.settle1]

Hia people I am having a bit of a divvy moment, where can I find the table in the green osg that shows the resistance for 100m of 2.5 t&e?
Im just wanting to double check my end to end results on the ring are correct.

Thanks

Because there isn't one what the table you are looking for is the millohm resistance per metre not 100m

 

[telectrix]

if you get 2.0 ohms for R1+R2 on 100m of 2.5/1.5 T/E you're pretty well spot on.

 

[wallyanker]

Haven't got my book to hand but a quick google search found this webpage.

Cross-sectional area to diameter conversion circle intersection cross section < > diameter electric cable formula wire diameter and wiring and calculation cross section AGW American Wire Gauge area of a wire formula conductivity resistivity - sengpie

Lots of calcs on here, hope it helps.

 

[telectrix]

if it's 100m end/end, r1 should be around 0.75 0hms, and r2 should be around 1.25 0hms

 

[Frosty69]

cheers guys always a really helpful site with any problems or spazzy moments!

 

[MarkieSparkie]

Hia people I am having a bit of a divvy moment, where can I find the table in the green osg that shows the resistance for 100m of 2.5 t&e?
Im just wanting to double check my end to end results on the ring are correct.

Thanks

GOSG 2011 Appendix I, Table I1, Page 182