Wire for DC and AC

[PA3040]

Dear All
Have a nice day

Is there any special wire for DC wiring like solar system wiring , Can be used AC wire for DC wiring
I have heard that some people taking about the wire can not be used for DC wiring which used AC wiring
Please advice

 

[hexreader]

If you mean mains wires, then you are creating a dangerous installation. Somebody may get confused and wire you solar panels to mains and cause shock and/or fire.

Use Red and Black wires for DC to prevent confusion and danger.

EDIT: forgot to say IMHO.
- I am no safety expert

 

[FvM]

The main difference between mains and solar cables is higher isolation voltage. Solar cables are typically sheated single wire cables. Special approval for solar cables exist.

Usage of color coded cable is possibly to simplify installation but no required by regulations.

 

[zenerbjt]

yes...what determines wires is the voltage....and the frequency...if very high frequency ac then you need multi-strand due to skin effect.

One of the mains things that changes with dc from ac is the switches and relays........high voltage dc relays and switches last less long than ac ones

 

[PA3040]

Why should change the wire if both AC and DC used example 5A load

 

[FvM]

Why should change the wire if both AC and DC used example 5A load

Nobody told you to change the wire for DC. If it's a high voltage solar string, use 600/1000V isolated cable with sufficient mechanical strength and durability.

 

[PA3040]

The main difference between mains and solar cables is higher isolation voltage. Solar cables are typically sheated single wire cables. Special approval for solar cables exist.

Usage of color coded cable is possibly to simplify installation but no required by regulations.

Can you please elaborate more about requirement for higher isolation for domestic Solar power system

 

[FvM]

Isolation is required according to working voltage of your system.