Hi there all,
We've recently bought a 1930's house with a couple of extensions (probably 1960's then redone in the late 1990's). I painted this during winter and had a few (3) heaters running to assist in the paint drying process, and noticed that we were tripping the circuit breaker on one circuit (circuit 6). We mapped out the circuits and found out that nearly every power point is on circuit 6.
It has a separate garage down the back, with one cable running to it (3 core 2.5mm). Lights and power all on the same circuit. 4 double power points on it so the load looks ok. I needed to install an additional fluoro tube and move a power point and so isolated this so I could hook it up. Found out it is also on circuit 6.
I then pulled the cover off the switchboard to do some current measurements on circuit 6, as I know this circuit is overloaded (19 double power points + 4 in the garage + window rattler aircon and a 15amp plug). Circuit 6, 7 & 8 are protected by an RCD. To my suprise when opening up the panel I found there are no wires connecting the RCD to anything. I also found when I turned off 6 it turned some of the lights off in the extension.
So, I knew I had potentially overloaded wiring but now I find out that my house is not protected by an RCD. This is concerning as I have two small children who could stick forks into powerpoints. I also know that I have mixed light and power circuits.
I am assuming the RCD is bypassed as it is generally overloaded and the aircon is installed on this circuit, so it tripped lots and they removed the wires.
I will get some quotes from electricians but was interested as to what I should be aiming for:
1. There are two circuits with only one power point. I could get them to sort out the aircon onto a separate circuit and then split the house and the garage.
2. Assume that it's been done by someone dodgy and rewire the whole house.
Any input as to the best course of action would be appreciated.
I am pretty happy to relocate a power point or hook up a fluoro tube, but rewiring a house and installing RCD's is something best left others. Having said this, when I see that there is an electricians sticker and current phone number on the box I can't help but thinking I could do a better more legal job.