swa help

[rich spark]

Hi guys. Little bit of guidance required please. Have a 260m run to carry a total of 16amps. Just to supply 4 sockets.
Im done my calcs and come out with a size of 25mm 3core swa which will give me a VD of 7.28
The cpc will be plenty big enough after calcs show an 8mm required.
As 25mm impossible to terminate into a socket!!
Was wondering the best way to go about it, would a submain to a DB over half way, and two 16amp mcbs to suply 2x radials be best?
Or submains to 1st point, and then to the 2nd point? So id have two DBs on 1 SWA with one 16amp mcb in each for sockets. Any response greatly apreciated. Thanks

 

[Rockingit]

r u for real? change the sockets to spurs and voltage drop does not come into it

go and read the regs for voltage drop

GN3 2.7.19 verification of voltage drop

ie: change to spurs and no one could come along and plug something else in

is that in the regs?

Jesus, please don't tell me you're actually pretending to be an electrician for money.

 

[Midwest]

GN3 2.7.19 verification of voltage drop

I can't interpret the guidance notes nor the refered BS7671 regs (612.14 or 525), make reference changing sockets to spurs, means you can negate vd. Perhaps you can clarify for us to learn. PS Guidance Note 3 (No1 2011) has moved Verification of voltage drop to 2.7.20. This refers to motor starting periods of high inrush currents &/or manufacturer reasonable recommendation.

 

[Landril]

Jesus, please don't tell me you're actually pretending to be an electrician for money.

No he is just on the dole surfing the web luckily.

 

[rich spark]

I install 240v transformers at columns which give me 24v for camera.
transformer has operating voltage between 220 and 240. My cams have min op voltage of 18v.