Electrical Advice

5357 - College Design Calculations Discussion Thread5357 - College Design Calculations Electrical Advice

Hi all,

According to my calculations (CCT9) - I am getting a 50A breaker on the sockets in the changing rooms leaving me with a 10mm cable to install. The reason why is because I’m calculating the sockets at full load.

Cable length 13.4m
Design current of 40.70A
Ambient temperature of 40c
Ref method B
90 degree PVC conduit

Is this viable or do I need to rethink my design...

 

NAPIT renewal cost Discussion ThreadNAPIT renewal cost Electrical Advice

Just had ours through, wow £650 for the year, basic as well, no 3rd party or EICR's. Everyone wants a piece of our hard work nowadays.

NAPIT renewal cost for the original thread on Electricians Forums

 

110v consumer unit Discussion Thread110v consumer unit Electrical Advice

Hi, not experienced this before but i have a workshop where the 110v consumer unit (old wylex 3036 board 4way)
Do the board is fed from a 16amp sp mcb from a t0&n board. Then goes into. Standalone transformer wall mounted 3.5kva then into the cu and then to 4x 110v socket outlet.

Ive managed to source a (protek 110v double pole rcd) so i was going to arrange the new consumer unit in this order
2 pole 100amp...

 

Bitzer NES20Y-40P Compressor Part winding start starting issues Discussion ThreadBitzer NES20Y-40P Compressor Part winding start starting issues Electrical Advice

Hello I have been asked to assist in fault finding on the above refrigeration compressor the unit is wired as a part winding 20 HP 3 phase 415 volt 32 amp run current with an approximate starting current of 98 amps.
This is supplied from a 31KVA Stanford Genset.
The 50 amp “Schneider NSX100B with a TM 50 D overcurrent trip...

 

American Electrical Advice Forum Discussion ThreadAmerican Electrical Advice Forum Electrical Advice

I've created this forum category titled American Electrical Advice Forum for those that visit the forum from America and wish to seek electrical advice from fellow Americans.

Please create a new thread in the American Electrical Advice Forum if you have a question you'd like answering. Anything electrical can go in this forum. 🙂

Create a new thread here...

 

Stuttering short circuit in a single circuit (several sockets)? How to identify short circuit? Discussion ThreadStuttering short circuit in a single circuit (several sockets)? How to identify short circuit? Electrical Advice

Hello.

There is a persistent short circuit on a circuit (a fuse switch).
All plugs have been unplugged.
All sockets are free.

I have continuous beeping continuity and “30 Ohm” resistance on several sockets.
I also have 30 ohms on one outlet, but a stuttering...

 

Rewiring a 5-Bedroom House with Powerwall 3 Integration Discussion ThreadRewiring a 5-Bedroom House with Powerwall 3 Integration Electrical Advice

Hi everyone,
I’m working on a full rewire for a 5-bedroom house with a loft, first floor, and ground floor, along with an attached garage. Renovation is currently underway, and i’ve been instructed to install two consumer units (CUs):

First CU in the loft to serve the loft and first floor.
Second CU for the ground floor, garden, and...

 

Underfloor Heating on 32 amps ring Discussion ThreadUnderfloor Heating on 32 amps ring Electrical Advice

We had our kitchen done a few years ago with underfloor heating. When the kitchen was done, a new CU was fitted and everything’s been OK so I didn’t really check anything. The breakers weren’t labelled which ----ed me off at the time so I labelled them all but forgot to check which circuit the floor was on. I just took a look and the floor is on the kitchen ring on a 32 amp...

 

Deta 20a mcb Discussion ThreadDeta 20a mcb Electrical Advice

Help!
Does anyone have a deta 20a mcb 6 or 10k. I’ve got a faulty 20a mcb that I’d like to replace so I don’t have to do anything more involved to split a ring main with open neutral end to end continuity.
It’s an old er version where the switch is black and the busbar splits around the bottom terminal screw.
I’m willing to if to pay if some one does.
Thanks

Deta 20a mcb for the original thread on Electricians...

 

EIC with no building regulations compliance certificate Discussion ThreadEIC with no building regulations compliance certificate Electrical Advice

May seem like a pretty silly question, but can you issue a EIC without a building regulations compliance certifcate as long as the work is non-notifiable. I am finding recently that during EICR remedial's I am having too many alterations to fit on a multiple minor works certificate so I am having to issue a EIC. I don't want to also pay...

 

Best solution to minors works certs for over 100 circuits only altered with a 2m cable from an isoltor to a plug? Discussion ThreadBest solution to minors works certs for over 100 circuits only altered with a 2m cable from an isoltor to a plug? Electrical Advice

I have a situation where we have altered nearly 100 new circuits purely by adding a cable from the supplied isolator to a 3p+n plug to supply pumps. Each isolator is on its own circuit from the local DB and we need to issue...

 

Getting in to the trade? Discussion ThreadGetting in to the trade? Electrical Advice

Hi all!
I'm looking for some advice about retraining and getting into the trade, particularly from people who are in a similar situation or thoes who have been there and done it. I have seen that a local colege has a EAL Level 3 installation inspection, testing, certification evening course as well as other companies offering part P and 18th edition courses. would these be a good place to start...

 

EICRs - BEST PRACTISE Discussion ThreadEICRs - BEST PRACTISE Electrical Advice

Hi there, I feel this is a bit of a daft question but, we've received a batch of EICRs that are due in June. Apart from one landlord that asked for the test to be as close to the expiry as possible, no-one else has said anything.

I've been helping my "nephew" for the last few years so I suppose the expiry dates are popping up now. What's best practise? Is a month too close?

EICRs - BEST PRACTISE for...

 

Two way switch only working upstairs light Discussion ThreadTwo way switch only working upstairs light Electrical Advice

Hi, my Dad has a two way switch which has a light in the hallway and a light on the landing, the other night I heard a dull bell sound and all the lights went off. The rcd tripped and now the light in the hallway is not working, upstairs switch and downstairs switch won't turn on the hallway light. The light on the landing works with both switches the upstairs and...

 

New Member here Discussion ThreadNew Member here Electrical Advice

Hello all, I am a RedSeal and master electrician with a small electrical and lighting company. Hoping to both help other and gain some more knowledge with this forum

New Member here for the original thread on Electricians Forums

 

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