Electrical Advice

TN-C-S System Max Zs for Final Circuit Protected By 30mA Type B 16A RCBO Discussion ThreadTN-C-S System Max Zs for Final Circuit Protected By 30mA Type B 16A RCBO Electrical Advice

TN-C-S System Max Zs for Final Circuit Protected By 30mA Type B 16A RCBO

I have read a few articles stating that under BS7671, max permissible Zs earth loop impedance for above circuit is 1667 Ohms.

1667 ohm permissible Zs for above circuit protected by 30mA RCD would only seem to satisfy BS7671 clause...

 

Transfer Switch Grounding Discussion ThreadTransfer Switch Grounding Electrical Advice

I have Generac Homelink Upgradeable Manual Transfer Switch (Model: G0068521 Serial: 3009887938).

The neutral is switch and I believe when this happens it is a separately derived system.

The manual recommended the generator attached to the transfer switch needs to have its neutral bond to the generator frame and the generator needs to be attached to a grounding rod.

My question is why does a...

 

Does SWA need RCD on a TT? Discussion ThreadDoes SWA need RCD on a TT? Electrical Advice

I know the answer, at least I think I do as I am now questioning myself! It's just I've seen a few jobs recently where the electrician (or who ever did the job) did not give any fault protection to the armoured cable, so I am wondering if I am missing something?

The most recent example from today is an EVCP which has been installed using SWA cable. The SWA goes directly into the consumer unit...

 

Solax inverter fault Discussion ThreadSolax inverter fault Electrical Advice

Was at my parents at the weekend getting their tree down out the attic, and I noticed their inverter was reading 0.0W….

Popped in again this morning to check it was getting power before I thought about cracking it open.

Can anyone explain what everything means compared to what I think they mean??

There’s only one button I see...

 

AFCI breaker tripping ONLY WHEN grid tie solar system active Discussion ThreadAFCI breaker tripping ONLY WHEN grid tie solar system active Electrical Advice

I had solar installed professionally 3 years ago. The home is 10 years old and has 3 AFCI breakers for bedrooms. One AFCI circuit was hardly used. A new mini fridge was plugged into the rarely used circuit. The mini fridge (60 watt) now causes the AFCI breaker to intermittently trip. I moved the mini fridge to the other 2 AFCI...

 

Thermostat wiring Discussion ThreadThermostat wiring Electrical Advice

I want to update my daughter's thermostats in her condo. She purchased 2 Honeywell Smart Wi-Fi compatible units. The old one downstairs has just two wires (RH and W1 O/B while the upstairs has 4 wires; a red attached to RC, a white attached to W, a blue attached to Y and a green attached to G. There is no C obviously downstairs. I was told to get a C adapter but that means running wires to a nearby outlet which...

 

Advice for registering for napit or neicc Discussion ThreadAdvice for registering for napit or neicc Electrical Advice

Hey all,
I’m looking for some advice regarding my qualifications and registration. Here’s where I’m at:
• Level 2 Diploma in Electrical Installations (Buildings and Structures) – 600/5498/0
• Level 3 Diploma in Electrical Installations (Buildings and Structures) (2365-03) – 600/5499/2
• Level 3 Award in the Requirements for Electrical Installations BS 7671:2018 –...

 

Mature level 3 re-trainee seeks improver/mate full-time, part-time or adhoc work Discussion ThreadMature level 3 re-trainee seeks improver/mate full-time, part-time or adhoc work Electrical Advice

Recently, I've successfully completed all C&G 2357 level 3 knowledge units, having re-trained from the software industry. I'm now looking for experience with commercial and domestic work to get a foothold in the industry and complete the NVQ portfolio.

At present, I currently hold the...

 

ECS white card EWA, am I excempt or not with C&G 2365 03? Discussion ThreadECS white card EWA, am I excempt or not with C&G 2365 03? Electrical Advice

Hello, with my C&G 2365 at level 3 passed (Aug 2023) am I exempt from taking the ECS health and safety course (50 multiple choice questions in 30 min, fee £55.80) as I have this qualification and have already been formally assessed on construction site health and safety? According to the ECS website I am exempt, however at this point...

 

Wiring in Tenerife Discussion ThreadWiring in Tenerife Electrical Advice

Hi has anyone on here got any knowledge of the wiring system in Tenerife is it anything like the UK or is it like opening a bag of worms ?
The reason I ask is I have a cousin there who wants a few things looked at and it’s giving me a free holiday. But am I going to find things straight forward or spend more time testing it than site seeing ?
Any advise from any in the know would be great thanks in advance and...

 

Tri Rated CCC Discussion ThreadTri Rated CCC Electrical Advice

Hello

Can anyone tell me the correct table in the regs for 70mm single core tri rated cables please?

Tri Rated CCC for the original thread on Electricians Forums

 

Pat testing - low insulation reading Discussion ThreadPat testing - low insulation reading Electrical Advice

Hi all, recently pat tested abit of equipment, it contains 24v power supplies, a frequency inverter, relays and a motor, its on a 13amp plug so requires pat test, however we get a low LN to E reading unless we disconnect the inverter. Reading is 0.9Mohms, is this normal or should you still requires the minimum 1Mohm resistance to earth. Thanks

Pat testing - low insulation...

 

Grade A Fire Detection Advice/Installer Required Discussion ThreadGrade A Fire Detection Advice/Installer Required Electrical Advice

In my 3 storey house I need to fit a grade A LD2 alarm system. Mains connected grade D currently exists in the correct locations but I guess because they are not fed by FP cable I will need to rewire to the new detectors I'll need to purchase, which I am capable of doing.

What I can't do is connect it all up to the control panel and the control panel...

 

Wireless Project Discussion ThreadWireless Project Electrical Advice

I need help with a project. It evolves replacing existing standard toggles with "smart" toggles with dimmers. Resulting in four new wireless wall toggles.

I need the new wireless toggles above to match with a single toggle that controls a "smart" stand-a-lone plug-in module.

I hope the attached drawing will help.

Wireless Project for the...

 

Light Supplied from Wall Socket Discussion ThreadLight Supplied from Wall Socket Electrical Advice

Hi
I want to power a pendant light from a 13A socket. There is a convenient wooden beam above the dining table to run the cable along, then it can drop down the wall to a wall socket. Am I correct in my understanding that I am not allowed to fix the cable to the beam with cable fasteners but could, for example put hooks on the beam so the cable can be supported in a way which makes it...

 

Utility pole put up 1m away from 132 KV line conductors ! Discussion ThreadUtility pole put up 1m away from 132 KV line conductors ! Electrical Advice

Look up before erecting any kind of pole! Someone in Burnley North West England though it would a good idea to put a pole, suspect wireless communications 1m away from some 132KV overhead cables. 'One wrong move could have resulted in a death’ say Electricity North West -...

 

Testing posting 2nd go Discussion ThreadTesting posting 2nd go Electrical Advice

Testing posting 2nd go

Testing posting 2nd go for the original thread on Electricians Forums

 

Testing posting 2nd go Discussion ThreadTesting posting 2nd go Electrical Advice

Testing posting 2nd go

Testing posting 2nd go for the original thread on Electricians Forums

 

Testing posting 2nd go Discussion ThreadTesting posting 2nd go Electrical Advice

Testing posting 2nd go

Testing posting 2nd go for the original thread on Electricians Forums

 

Testing posting 2nd go Discussion ThreadTesting posting 2nd go Electrical Advice

Testing posting 2nd go

Testing posting 2nd go for the original thread on Electricians Forums