Test sheets and COC

The test sheets were a little hard to follow and understand at first but have slowly gotten used to them and can now fill them out easily. The Certificate of Compliance was prity straight forward to fill out and think I have done it correctly.

This week we were just finishing off anything we needed to complete. I finished of the Earth fault loop testing and RCD testing then re did the lights because I lost the test values I got from last time.

So now I have completed all of the work that needs to be handed in. Now just study for exams..!!

Two week update

It has been two weeks since I have updated this blog.

In the last two weeks I have been busy testing my single phase board that I constructed and a 3 Phase board that had been made by the lectures from previous years.

I have found the testing a little bit confusing to start with and and only just coming to grips with the process now but i was able to test and liven my single phase board successfully apart from one problem. I had connect the main neutral to the RCD's wrong. I had put the phase in at the top and the main neutral in at the bottom and therefore were opposing each other and kept tripping when a load was applied. I have now fixed this and realised what was wrong.

Part of the testing was doing a earth fault loop impedance test and I was able to do it but had a little trouble at first.

The 3 phase board in my opinion was a mess it had not been looked after very well and it was very untidy. When I was testing it I was unsure whether some of the faults were from previous students fiddling with it or because they are purposely put there for us to find. But I have noted all of the faults that were found and finally finished all of the testing.

Frames

This week we had our frame practical to do over two days.

We were given a sheet with the circuits drawn on that we needed to wire up and test when we were done. The frames had to replicate 5 rooms of a house. Each person was given a circuit or job to complete.

My job was to do the meter board and switch board wiring. We were given all the materials needed.

I found that the switch board was easy to do once I looked at the circuit diagram that we were given at the start of the semester. I think I need to work on my wiring neatness but that was all that I got wrong with the switch board.

With the testing we were also given a sheet that we followed with the correct procedure on. I had to lead the group and instructed people with what to do. I found the testing quite confusing at first but eventually got the hang of it. We found a few things wrong with some of the circuits but they were easily fixed.

Lastly we put power to the switch board and check it all live and turned all the lights on and off.

Here are some photos of the finished wiring.

New Board

Its been awhile since i have written anything on here. Last week we didn't have wiring because the other group were doing frames and we were on machines but this week we have two days of wiring. So the last thing we did was pipe bending and connecting our joints to our single phase boards. I have now finished that and found it alright to do. Here is a picture of my newly completed board.

Jointing and Conduit

This week we did jointing and metal and plastic conduit.

With the jointing we first did a 3 phase neutral screened cable with epoxy resin. This was simple enough to do but I needed to read all of the instructions before preparing it as I stuffed up a few times with the cables not being staggered enough and leaving too much outer sheath off. After these mistakes were taken care of I poured in the mixture in the mould. I found that the resin leaked out of the bottom a little bit but was fixed by s

queezing the mould tighter. Here is a picture of the finished product.

After this we made one of these.

After this I moved on to tapping a metal pipe with a die. I found this hard to start and took me a while to do but once I got started I was able to make the thread easily enough. Then I went ahead and bent two 90 degree angles into it. This will be places onto our single phase walls. Pictures are to come next week. I have now finished the plastic conduit bending and found it relatively easy but we didn't have the right sized spring for the size conduit we were using so was difficult to get a perfect bend.

Test Results

We got our test results back today and I managed to get 100% in the test which I am quite proud of :D.

This week we did bonding and jointing and metal and plastic conduit. I will update with more details later in the week.

First week back

We had our first test of the year on cable selection and maximum demand this week. I felt that the test went really well. I feel like the study that I did helped me a lot with it.

This week we also did Lighting and wired up some different types of lights. First we did Incandescent Filaments then moved onto fluorescent lighting. Once we worked out the fluorescent lighting diagram we were able to wire up sodium, mecurary vapor and metal-halide bulbs. Here is a picture of one I did...