Electrical Advice

ZS testing - dangerous? Discussion ThreadZS testing - dangerous? Electrical Advice

I have read somewhere that performing a zs test where there is exposed metalwork and people around can be dangerous? Is it something that has to be avoided? Or does it say anywhere that it must not be done? Should i be worried about carrying out Zs tests now? :/

ZS testing - dangerous? for the original thread on Electricians Forums

 

R2 test without removing cover Discussion ThreadR2 test without removing cover Electrical Advice

Hi all when performing an r2 test prior to commencing an EFLI test would it be acceptable if the board was made from metal of course to test from the point to the outside of the board rather than to the earth bar? Just for when you are working with large 3phase boards full of cables.

R2 test without removing cover for the original thread on Electricians Forums

 

Signal generator amplifier using only positive pole output, underperforming Discussion ThreadSignal generator amplifier using only positive pole output, underperforming Electrical Advice

I have a 100W 50 ohms signal generator amplifier with a 35 meters coil wire (1.5 mm) as a load, BNC connectors. The requirement is that only the BNC POSITIVE pole is connected to the wire and used as antenna. The amplifier require a minimum of 4 ohms load. This is not a closed circuit antenna...

 

Circuit design for computer circuits. Discussion ThreadCircuit design for computer circuits. Electrical Advice

Hi Guys,

I'm currently designing an installation that will be used to configure multiple pieces of electronic equipment such as PC's, Servers, All in ones etc. Its going to be set up in bays such as the picture attached. With it being a full socket installation I was hoping for some guidance if I'm approaching the maximum demand calculations correctly with diversity. There...

 

Adjusting water temp. Aquafficient solar Discussion ThreadAdjusting water temp. Aquafficient solar Electrical Advice

Hi

How do I adjust the water temp?

Thanks

Adjusting water temp. Aquafficient solar for the original thread on Electricians Forums

 

Clear up a bonding debate of ours. Discussion ThreadClear up a bonding debate of ours. Electrical Advice

Hi all
Wondered if you could clear up a debate we are having at work.
Gas inspection has said no bonding to the gas meter or pipe in block of flats.

One engineer says it should be run to the meter.
One says it should be installed outside within 600mm of where it enters the building on the blue arrow.
And one engineer says it should be inside 600mm from where it enters the flat...

 

Local RCBO protecting ring final alteration. Discussion ThreadLocal RCBO protecting ring final alteration. Electrical Advice

Hi
I completed a job recently where a hotel reception had a new desk fitted. The old desk dado was supplied via an RCD spur from the existing ring. This ring is fed from one of the very old Merlin single phase boards which I’ve been told you cannot retrofit Schneider ic60n RCBO’s in. I had to remove a couple of sockets including the existing Rcd spur from a...

 

RCD test button Discussion ThreadRCD test button Electrical Advice

Hi, can anything else cause a RCD test button to fail, besides a faulty RCD.

RCD test button for the original thread on Electricians Forums

 

Light switch replacement (lights flickering) Discussion ThreadLight switch replacement (lights flickering) Electrical Advice

Hi,

Friend asked me to check out their light switch cause the kitchen lights were flickering and the faceplate was getting hot. They sent the photos below to show what it looked like, obvious issue is the common looking fried, which I put down to a loose connection, hence the flickering lights.

To replace the front plate, all the old wires go in the same...

 

t8 fluorescent tube led replacement Discussion Threadt8 fluorescent tube led replacement Electrical Advice

what is a good led replacement tube for a t8 fluorescent tube

t8 fluorescent tube led replacement for the original thread on Electricians Forums

 

Generator to run oil fired boiler or immersion heater? Discussion ThreadGenerator to run oil fired boiler or immersion heater? Electrical Advice

Hi. We've a champion generator, inverter, dual fuel, 3.6 kw, which we've used a couple of times during power outages over the last 18 months to power a fridge (class 1) - needed to keep my partner's meds. at fridge temperature and a range of other items (class 2) such as broadband router, TV, radio, a couple of standard lamps. Simple system...

 

Catenary wire Discussion ThreadCatenary wire Electrical Advice

Hi all looking for some help. I was looking for the minimum height of a catenary over a road, i cant seem to find it in the regs, can anyone help? I need to know where to find it in the regs book, thanks for your help in advance.

Catenary wire for the original thread on Electricians Forums

 

Diversity on a 20 Way or longer CU with many (low utilisation) ring mains Discussion ThreadDiversity on a 20 Way or longer CU with many (low utilisation) ring mains Electrical Advice

Hello,

A quick question which I suspect is becoming more commonly asked as we go towards having more ways in our CUs.

Domestic dwelling, nothing too exuberent but during rejigging the large downstairs ring was split into three and some radials added, as well as seperate feeds to allow for a...

 

Anyone work with FP200? Discussion ThreadAnyone work with FP200? Electrical Advice

Hi,
Anyone work with FP200 and is able to take some photos for an NVQ as an example I'm putting together? We can discuss some payment.

Message me here or privately if interested

Anyone work with FP200? for the original thread on Electricians Forums

 

Can you add a second fixture to a switch loop? Discussion ThreadCan you add a second fixture to a switch loop? Electrical Advice

I currently have a light fixture on a switch loop and would like to add a second light that would be powered by the same switch. Can you add a second fixture? Forgive my novice picture, but if so, is this an allowable setup?


Can you...

 

24v DC driver for LED lights. Discussion Thread24v DC driver for LED lights. Electrical Advice

Hi all,

Can anyone recommend a decent 24V DC constant voltage LED driver.

It’s for an install of bathroom niche LEDs IP65 downlights. They are mini and have a 35mm cut out. The 1.5mm T&E is already dropped to each cut out but need a driver that will fit through a 35mm whole and to be pushed up.

Many thanks,
Jay

24v DC driver for LED lights. for the original thread on...

 

Issue with r2 reading on ring final circuit due to parallel paths Discussion ThreadIssue with r2 reading on ring final circuit due to parallel paths Electrical Advice

Good evening,



Been on and off on this project, they’re all brand new flats and now I’ve come back to carry out EIC tests.



It’s all first fixed in steel conduit and have stud frames with caddy clips on, so naturally been told to earth back boxes. Before I left I mentioned to the QS running job it’s best to leave...

 

Problems with my roof Discussion ThreadProblems with my roof Electrical Advice

I mentioned it a couple of times on other threads, and will link to here from those....

I found this diagram on t'internet showing how my roof has been constructed... closest anyway.

In my situation, the cavity wall on the left there has been removed, with a steel beam holding it up. Modern timber frame house with external rendered...

 

Voltage Drop Calculation vs OSG Discussion ThreadVoltage Drop Calculation vs OSG Electrical Advice

Hi All,

Hoping to get opinions on Vd calculations for a 1.5mm2 downstairs lighting circuit with an estimated length of 128m!
Length is due to loops at switches (neutrals required) and switched lives feeding various strings of lights.

...

 

Wiring up Garden room (Need help on Dali light) Discussion ThreadWiring up Garden room (Need help on Dali light) Electrical Advice

Hi, recently got a garden room and completely wired it up but running into a snag. Is there any way I can use dimmable led batons that have Dali output with just a dimmer switch as I’m having problems getting it to work.

I know usual you have to have a permanent feed at each light and switch wire. Is there no possible way I can just dim it up and down...