size of cable for extension

[MrsAB]

We have done an self contained extension to the property and need to run a mains cable from our present house to the extension as we need to fit a fuse box and meter to the extension. What weight cable would be advised to run lights, plugs and water heater?

 

[JohnD]

You need to know:

Regulations and standards in your country. Few, if any, of us are familiar with Bulgarian practices.

Planned maximum load in Amps

Is it single phase or 3-phase

Length of cable

 

[MrsAB]

John, Thanks at least we now have something to work on, the problem out here is not speaking the language and everyone telling you something different. When you say length of cable do you mean going to the new fuse box?

 

[JohnD]

the length of the cable that is carrying the current. The longer the cable is, the more volts will be lost, so the cable has to be thicker to reduce voltage drop.

 

[sunnybrook]

...as it is similar in a way. I am in Bulgaria. Circuitry is radial. I want an “extension”.

I have a log splitter which has a 2200W motor. It is designed for European market as original cable has European plug. It comes with a 10m cable with European socket and UK plug. Changing the plug is no problem.

I have used it no problem close to house. I would now like to use it near garage, which is 18m longer distance than the provided cable. Max. permissible cable length is the 10m cable provided (2.5mm x section, I assume as that is the rated cable for it). “A longer cable impairs the motor performance and consequently the function of the log splitter.”

If I had a 20m run of cable circuitry in my house and plugged their extension cord in at the far end, I assume that would be acceptable. I know it sounds naive but I don't see the difference between that and running a 18m cable from a socket at the house, which is 2m from the supply, and then plugging the extension cord into a socket attached to the end.

In that case I assume that the thickness of the cable I use is then what determines the appropriateness of doing that. So, what thickness would be required, in that case?

 

[sunnybrook]

Of course, an alternative would be to discount their supplied 10m extension cable and have a 28m cable with larger (?) diameter.