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Old 28-07-2015, 08:34 PM
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Somnium (Aidan)
Aidan

Somnium is offline
 
Join Date: Oct 2014
Location: Sydney
Posts: 1,669
electrical wiring question

Hi all,

this weekend i am looking to wire up the electrics of my observatory. i am going to get all the cable laid and then have an electrician just connect it up (to save a bit). i am running an electric gate opener, computer, mount (i want to be able to support a heavy duty mount for when i upgrade), camera, 1 light but not all at the same time. i have got some 16A circuit breakers for the sub panel i will be installing in the observatory which will service the power outlets and a 10A breaker for the light, i have also got a copper grounding rod. the observatory is about 30 mtrs from the main electrical panel. does anyone have any idea what cabling i should use for
  1. the power cabling
  2. the light cabling
  3. the mains panel to the sub panel

can i use the same cabling for all 3? if so, what should it be?

finally, what circuit breaker should i use on the mains. i am sure 20A would be sufficient, but i have heard others just using 60A for any sub panel.

thanks in advanced for the help
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