I am preparing for my first practical assessment. I have been asked to discuss three reasons for conducting a polarity test on a de-energised installation.
I have said that it reduces the chance of electric shock, it avoids damage to accessories and or equipment and potential fire risk if...
Hi,
I am a pastry chef in New Zealand and am wanting to build a kitchen at my home. Either convert the garage or preferably build it on a food trailer. It will be set in one place as I will not be selling directly from home. Just catering out. But if on a trailer I can move it easily at a later...
Sorry fir the length of this.
Am adding some lights and sockets to existing circuits in a SP board. And providing bonding to metal oil pipes coming into this workshop from underground.
They have a diesl SP generator supplying ‘esential’ SP Dis boards across the site feeding lights and basic...
Hi so I have my SECTT test coming in a few weeks, SECTT is a pre employment multiple choice test you do to be able to become an electrical apprentice in Scotland, there's the mathematics side which I'm good with but there's also technical questions side, could anyone please help me with a source...
I picked up a 7.5W 110V TEFC single-phase induction motor for super cheap. I may use it on a home made lathe or stationary-sander for my woodshop.
It's not running. I read that the run windings would probably have less impedance than the start windings. I was only able to get and measure...
A customer has asked me to install a supply for a Wenger Webcot kiln.
The faceplate is very worn and I cannot see the kW. They state the kiln it type 3670w and is rated at 12kW.
The paperwork does have 3670w on it but when I look at the spec sheet (see picture 2, SpecSheet) ) there is no sign...
Hi. This is a gloriously messy installation I looked at this morning at a house a friend just purchased. It t became quickly clear it was more economical to rewire than rectify. I will however be putting findings in writing and there are a couple of new situations for me. So here goes:
My...
So having a look at the electricians guide to the building regulations, section 7 safe working.
7.3 is about pre work tests and is states that electricians should carry out the following test before any installation work is carried out including additions and alterations to existing...
So I've just been reading through the electricians guide to the building regulations for my own knowledge and have come across 2 regulations which I need help on clarifying...
page 80 5.5.2 (e) mentions cables should need to withstand a temperature of 170 degrees C.
Q. now why on earth would a...
Q1. So when I went to look at the flat, I could see that there was a wired extractor fan, and could see that the flexible plastic ducting was going into a straight pvc ducting which was rectangular shaped (I saw this through a missing plasterboard). I tried to see where the straight duct went...
I've been to see a flat which needs a rewire. The flat is being completely renovated. I've just recently qualified, I have done rewires before during my apprenticeship and understand it, but it is the first time taking one on on my own, I feel pretty confident as it is all partition walls which...
Hi everyone!
Situation: I'm an electrical apprentice without employment atm. I have been offered work in the near future, with a subcontractor on a big London site. The other day, I registered with the CIS
I'm registered self-employed (have been landscaping past 15 odd years). I have a business...
Hi there,
New member here. Thank you.
I'm wondering if it's permitted to post survey questions as discussion threads (or post a link to a survey form in Google). I'm not an electrician, rather, I'm part of a research and development team that aims to create a product for electricians...
Good afternoon guys. Recently had to make an impulse generator purchase. Looking for some guidance to make my generator use both more flexible and safer than extension cords. Apologize in advance for breadth of information and questions. First time on this forum so any help would be greatly...
Hi all, I'm a trainee and just have a question.
If the earthing for the Car charging is changed to TT and there is a light fitting close on PME, can you get a shock from two different earth potentials (light fitting and car)? Or does there need to be a fault?
And does that mean you can get a...
Hello
Please help me to understand more about the kinetic switch!
i have 6 quinetic wifi wireless receiver for dimmer switch (1AMP)and 3- 2 gang switch(QU WS2W)DIMMABLE QUINETIC WIRELESS SWITCH
i have some problem with the quinetic wifi wireless switch and receivers!
1.when i try to pair the...
I have my AM2 booked soon and had a few questions
What multifunction tester is provided or does it vary between am2 centres?
I am doing preparation course online so i am just wondering if the installation is going to be the same layout or similar
Im covering all sections of fault finding and...
does anyone know how do do i Draw a circuit that will convert a galvanometer with a full-scale deflection (f.s.d.) of 1mA and internal resistance of 20Ω into an instrument capable of measuring up to 1A.
and another circuit to convert the same galvanometer to read 10 volts f.s.d.
thanks
Afternoon all,
How do i solve these two questions, Feel like am missing something simple. doing my head in lol.
I need to learn the calculation for them both, I am struggling to work it out.
1.
Insulation resistance has been tested on five new lighting circuits in an existing large...
Afternoon
A simply question but like confirmation from the more knowledgeable. Can someone confirm if there is a direct short between a line conductor to extraneous pipework I.e water or gas. In what scenarios will the MCB trip or not trip? My own thoughts are that if it has a negligible...
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