Red wire and black wire

12/13/2017 at 3:51:07 PM

Check your code book bud and to be honest if you cant figure it out give up a future in electrics

12/13/2017 at 4:29:28 PM

Hi Nic,

don't mind the previous remark, apparently, that guy doesn't like to offer help for free.

As a master Electrician, I can tell you there is no trouble mixing phase "colours" red, black and blue. Single phase generally consists of red and black only designating what phase they originate from and how 240 volts are derived. Most residential people hack away at wiring phases mixing the 2 often (not a good idea but balancing is rarely a problem. There is normally a uniformity of maintaining red away from black (colour only), to keep loads balanced, but there is no code rule as such that red or black must be maintained in a residential installation. 3 phase systems MUST maintain their colours for multiple reasons, but I assume this is way beyond your question.

12/13/2017 at 5:47:28 PM

Hi Nic,

Not really sure what you're pertaining to in your question. There is a lot of difference between residential wiring & commercial/ industrial wiring methods. In residential wiring typically single phase is the norm, however, with commercial & industrial wiring 3 phase is what's used. It's not uncommon to connect a red wire to a black wire in residential wiring as this is normal practice. In commercial & industrial installations it's also common practice to connect a red wire to a black wire. Example; if someone was connecting a AC90 cable (trade name BX) to a 3 phase circuit & the conductor from the breaker was a red one then it would connect to the black wire of the AC90 cable. This is done all the time with lighting circuits that are wired with AC90 cable & then terminating in a junction box which may have a red, black, blue & white conductor.

12/13/2017 at 6:54:21 PM

Look up house wiring 3 way.

12/14/2017 at 4:33:02 PM

Hi Nic

If in fact you are a student in electrical; you will quickly learn that the only two colours that matter are white and green. In learning electrical fundamentals, try to understand what is happening (how the current is flowing) and disregard the wire colours; this will help you in the future when you go to troubleshoot more complex circuits. This will be especially helpful where all the wires are the same colour and are only indentified by a letter and / or number.

John Kuehnl-Cadwell

Master Electrician

Datawise Solutions Inc