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321 posts

Ultimate Geek
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# 251421 25-Jun-2019 10:14
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Can anyone point me to regulations on heights and materials and such for running an elevated power line to a shed?

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905 posts

Ultimate Geek
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  # 2263932 25-Jun-2019 11:53
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why not underground ?

 

 




321 posts

Ultimate Geek
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  # 2263940 25-Jun-2019 12:05
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The route is through difficult terrain and vegetation, though not long, 30m or so.

 
 
 
 


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Ultimate Geek
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  # 2264041 25-Jun-2019 13:31
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The cost of poles properly seated + cable etc would possibly be more expensive than a trench.


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Uber Geek
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  # 2267381 30-Jun-2019 17:11
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From memory 

 

- 6mm2 TPS cable, UV rated, supported by a catinary wire. 
- 3 metres above ground, or 4.5m if vehicles are capable of being driven through the area under it.

 

If its a short distance I'd probably also suggest putting it inside some 25mm solar duct 

 

 

 

Edit: Its outside the homeowners legal abilities so you need to work under supervision which means calling out an electrician, them telling you what to do, then when you have installed it, they come back and connect it up. They then issue you a compliance certificate.





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321 posts

Ultimate Geek
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  # 2267383 30-Jun-2019 17:20
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Thanks for the info.


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  # 2267403 30-Jun-2019 18:13
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It will be a permanant eyesore if you go overground. Get the ditch dug and while you are throwing stuff in it for power, put some conduit out there for future fiber run to the place.





Richard rich.ms

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  # 2267451 30-Jun-2019 19:33
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rhy7s: The route is through difficult terrain and vegetation, though not long, 30m or so.

 

So how do you walk there at the moment?  You could trench the same route?

 

 

 

 


 
 
 
 


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  # 2267469 30-Jun-2019 20:00
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Get an electrician to quote the job.

Size of the cable required depends on the load in the shed. As well as the voltage drop on the existing mains cable and wiring from the street to your house. From there, the sparky can calculate what size cable would be needed to keep the voltage drop within spec.

And if you are unlucky, the voltage drop on your existing wiring would be more than what the code allows. Meaning that it would be impossible to add any new circuits and make them compliant without also upgrading the mains cable to your house.


If you want to DIY it. You will need to find an electrical inspector who is willing to check your cable size calculations before hand, then inspect every stage of the job. And then make the final connection and certify the job.


If you only need the power for some lights. Might be far easier just to rig up your own cable and just run 24V over it for some LED lights.





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  # 2267514 30-Jun-2019 21:21
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Aredwood: 

If you only need the power for some lights. Might be far easier just to rig up your own cable and just run 24V over it for some LED lights.

 

Or if only lights look at a solar panel to charge a battery.





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Ultimate Geek
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  # 2267587 1-Jul-2019 03:59
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Mind the lightning strike protection!





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