Electrical Advice

New member hello Discussion ThreadNew member hello Electrical Advice

Hello folks, ex engineer. Lots changed since I last worked in the industry. Looking for advice from those more up to date than myself

New member hello for the original thread on Electricians Forums

 

Effect of someone touching a device that is protectively earthed Discussion ThreadEffect of someone touching a device that is protectively earthed Electrical Advice

I am trying to calculate (as a theoretical exercise) what the effect would be if someone touched an electrical device that is protectively earthed. I would really appreciate it if anyone could verify my workings.

I am assuming that the current flowing into the enclosure of the class 1 device is 1 Amp (could this...

 

The new-ish ProjectEV Apex range Discussion ThreadThe new-ish ProjectEV Apex range Electrical Advice

I'm fitting one of the Apex 7S units on Friday.
I'd avoided the original range after a couple of bad experiences but I figured a new model might be better.
I thought I'd list some differences I've noticed so far when compared to the original range:

1 - Even though the connections looks the same, the two connections that were for a CT clamp are now for rs485 A and B. You can't just...

 

Hypervolt/EV Charger showing falling voltage ? Discussion ThreadHypervolt/EV Charger showing falling voltage ? Electrical Advice

Hi all

Looking for some wisdom
I installed a Hypervolt charger (the most recent model which is no longer available for direct purchase fr Hypervolt)
It’s on a smart octopus setup
Works perfectly fine on scheduled charge
But when doing an Octopus ‘bump charge’ , Hypervolt says voltage falls to 207v and shuts off.


It tests fine, distance is 3m from...

 

Setting up a new business Discussion ThreadSetting up a new business Electrical Advice

Morning, I’ve been asked to go it alone by a shop fitter but would need to test & certify each job with NICEIC certification. Is there any way of using a third party registered NICEIC testing company to complete the certs? I spoke with the NICEIC and they state I need two years of previous work to be able to apply?

Setting up a new business for the original thread on Electricians Forums

 

Jacuzzi bath wiring Discussion ThreadJacuzzi bath wiring Electrical Advice

Should a jacuzzi bath be wired in H07 flex? Wired one recently and spurred off the ring, just took a twin and earth cable off the spur and into a ip65 box under the bath to join onto the flex. But now I’m thinking should I have used h07 flex for this? Maybe over thinking it lol!

Jacuzzi bath wiring for the original thread on Electricians Forums

 

Ev CT and Data Discussion ThreadEv CT and Data Electrical Advice

Wondering what's best to do when installing a Zappi charger regarding ethernet and ct connections. Can you make a rj45 connection and a ct connection with the ev ultra cable. Or is it best to take two data cables to the charger, one for ethernet and another for CT?

Ev CT and Data for the original thread on Electricians Forums

 

Help choosing power adaptor Discussion ThreadHelp choosing power adaptor Electrical Advice

Anyone here willing to help an idiot? I bought an AllPowers portable power station and managed to lose the power adaptor. AllPowers are unable to supply a replacement and I have found one here:

View attachment S89542fd0e33e4fd8af7a150af8e00eebC.webp

Adaptateur d'Alimentation avec Prise DC 5521, 3V, 5V, 6V, 9V, 12V, 15V, 18V, 24V, l'autorisation, 1.5A, Pipeline, US, EU AU, UK Standard - AliExpress 39 ​

Smarter Shopping...

 

Main Bonding with a crimped lug fixing! Discussion ThreadMain Bonding with a crimped lug fixing! Electrical Advice

Hey All,

At college, I was taught that main bonding - such as bonding to a gas pipe - must be carried out using a continuous copper conductor running directly from the Main Earthing Terminal (MET) to the pipework, with no extensions or alterations permitted. If the bonding cable is damaged or contains any connections, it must be replaced entirely. However, is it...

 

Acceptable ways to terminate SWA - standard practice question Discussion ThreadAcceptable ways to terminate SWA - standard practice question Electrical Advice

Hello folks

Inhave my 18th Edition and Part P l, but I dont trade as a sparks.

I have a question about best practice for terminating SWA.

I am currently installing a connection to my new workshop. (I used to be STROMA registered years back, will likely reregister to sign off myself).

16mm 3 core SWA is already run in...

 

Will the test meter over or under read the utility meter? Discussion ThreadWill the test meter over or under read the utility meter? Electrical Advice

Good day

The following table shows the results of 3 current transformers (50A/5A, Class 0.5%) connected to a 3P-4Wire Digital Energy meter. (Performed at the meter manufacturer's workshop).

It is observed that at Unity PF, the meter readings for current are a close match to the supplied test currents from 1 to 50A. The...

 

WIFI devices in a metal consumer unit. Discussion ThreadWIFI devices in a metal consumer unit. Electrical Advice

Good morning. I intend to replace my oil boiler with electric and a qualified electrician will be doing the job. I see there are lots of din rail mounted WIFI devices such as meters, switches, timers etc and I am considering asking the electrician to incorporate such devices within the new consumer unit feeding the boiler, immersions and controls. This is for 'smart home'...

 

Boiler side connections for UFH wiring centre Discussion ThreadBoiler side connections for UFH wiring centre Electrical Advice

I've been away from electrical work for about 30 years so I'm not familiar with all the names and terminology that's been introduced over the years.

We're having UFH heating installed. Plumber is doing the pipework, s-plan etc and I'm installing a Heatmiser wiring centre. for the electrical side. Wiring everything up as per the attached diagram is pretty...

 

Signal interference for AICO detectors? Discussion ThreadSignal interference for AICO detectors? Electrical Advice

Hi all
Installed AICO Ei2110e modules some 6 years ago and used their RadioLINK bases to link one set to others in the extension. No issues until recently when a myenergi eddi was installed nearby for the water heating. Since then, alarms sound at infrequent times, but often enough to be really annoying for the customer.
Is this a coincidence, or has anyone else had...

 

Unknown switch Discussion ThreadUnknown switch Electrical Advice

Does anyone know this switch?
It was used in the 1960s by my father to distribute power to either one or two lamps. In one position, one lamp would burn at full intensity, in the other two at half intensity.
I am interested in the name of the switch and what it was originally used for.

Unknown switch for the original thread on Electricians Forums

 

3 phase submain showers Discussion Thread3 phase submain showers Electrical Advice

Hi, I'm working in a building which has a three phase supply. There is two electric showers, sockets, water heater and lights going in a toilet block/seating area. For this I'm looking to take a 10mm 4core cable to a submain near the toilet block and running everything from here. The run is about 20m. Would this be sufficient for two showers being used in the morning and evening regularly. Should I be...

 

Combine two electric meters? Discussion ThreadCombine two electric meters? Electrical Advice

Hi Guys,

Please be gentle this is my first thread!

Really need expert, independant advice.
I have a shop which has two electric meters one is for the lighting/ power sockets, the other is for night storage units.
Would it be cheaper to combine the two meters? I'm currently paying the same kwh rate and daily service charge for both meters. The amounts are, 22.02 kwh and £7.00 monthly service...

 

EICR question, OLD AC RCD- code 3 or no code? Discussion ThreadEICR question, OLD AC RCD- code 3 or no code? Electrical Advice

With regards to Regulation 531.3. 3 of BS 7671:2018+A2:2022

Older AC type RCD's are prone to being blinded by dc leakage from other items plugged in to the property. In other words this RCD may fail to operate when other electronic items are plugged in which leak DC in to the mains.
Regulation 531.3. 3 of BS 7671:2018+A2:2022 states that the appropriate RCD...

 

My outlet is on two circuits at once... Discussion ThreadMy outlet is on two circuits at once... Electrical Advice

I have an ancient home with knob and tube wiring, and a breaker box from the 70s. It's all a mess, with circuits powering random things on opposite ends of the house. The breaker box has breakers with multiple wires spliced or coming out of the stud and all the neutral studs are overloaded with wires. Yes I would update this if I could afford it but until then I have one...

 

Improper Grounding Question - Outlet Receptacle Discussion ThreadImproper Grounding Question - Outlet Receptacle Electrical Advice

I'm trying to replace an outlet receptacle in my house. The home was built in 2001 and we have never replaced any receptacles. I realized after undoing the box (power was shut off and tested a low voltage but no issue) that there were two copper grounding wires wrapped around a screw in the back of the metal box behind the outlet receptacle. There was no...