|
The Clubs Virtual Pub For general chat, so come on in and pull up a chair. |
|
Thread Tools | Display Modes |
28-02-2020, 15:05 | #1 |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
Electricians advice sought - or competent person.
As some of you know our house was completely rewired after the house fire with some changes to the ring mains layout - Kitchen is completely separate to rest of house for instance. I have had some issues on the ground floor when using my BT Mini Connectors that use Ethernet over Mains protocols.
I have a sneaky feeling that it could be the case that perhaps some of the wiring to the house 13 amp sockets might not be 100% - this would explain why a BT Mini Connector works better in one side of a double socket than the other - it could be the brand of socket perhaps? Short of checking the tightness of the screws in every single wall socket is there an easier way to check it out ? Is there an inexpensive testing tool that I could use? |
28-02-2020, 15:54 | #2 |
Senior Member
Join Date: Dec 2012
Location: clacton on sea essex
Vehicle: nissan terrano 2 2.7 tdi
Posts: 1,637
|
they do a mains plug into socket tester plug with lights to show good or errers
|
28-02-2020, 16:40 | #3 |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
|
28-02-2020, 17:02 | #4 | |
Senior Member
Join Date: Sep 2010
Location: Mid-Wales
Vehicle: Maverick 2.7 - Patrol 4.2
Posts: 5,645
|
Mains socket tester
Quote:
|
|
28-02-2020, 18:14 | #5 |
Senior Member
Join Date: Sep 2004
Location: UK
Posts: 12,965
|
Sounds like they have separated into several ring mains. Old way of doing it was upstairs and downstairs separated. Do the sockets have a brand on them such as MK. I’ve had problems in the past with cheap sockets bought from a well known DIY Store. Personally I prefer MK but other brands are available. I have seen cheap double sockets with USB chargers combined with earths not connected properly so basically despite an earth cable connected the plugs had no connection to earth, I’d of expected this to trip a circuit but I’m told not always the case.
|
28-02-2020, 20:00 | #6 |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
Mains socket tester
|
28-02-2020, 20:05 | #7 |
Off road maniac
Join Date: Dec 2009
Location: Bexhill on Sea
Vehicle: Y60 Patrol Me, 3 ltr Mrs
Posts: 17,428
|
As Fez says a double socket is fed with LNE but is the socket is switched then one side could have a bad switch, as for checking polarity a plug in socket tester is the best way forward, it will tell you instantly if LNE are correct, as for insufficiently tightened terminal screws the only way is remove the socket and check, Rick
__________________
Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare. |
28-02-2020, 21:45 | #8 | |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
Interesting Rick
Quote:
I will check the brand used - I too am a fan of the likes of MK & Crabtree. If loss of Broadband speeds persists I will check all the downstairs & upstairs wall sockets. I am pretty sure I have upgraded the hard wired Ethernet Cables from Cat 5e to Cat 6 for nothing but not thankfully at great cest as I have done it all myself. |
|
28-02-2020, 22:32 | #9 |
Senior Member
Join Date: Jan 2011
Location: southwest gloucester
Vehicle: Nissan Terrano 2.7 2003
Posts: 615
|
LAP MS6860D Socket Tester (91596) on screwfix is £9.99 toolstation also do one a bit cheaper
|
28-02-2020, 23:45 | #10 |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
That looks a simple bit of kit to test poor earth & reversed wiring.
|
29-02-2020, 18:16 | #11 |
Senior Member
Join Date: Nov 2009
Location: Norfolk, Poringland NR14
Vehicle: Terrano 3.0 SVE 2002
Posts: 1,549
|
The instrument you need to test the integrity of the wiring and connections is a loop tester. This works by passing a very short duration load (~20A) on the circuit under test and measures the "loop impedance".
A quick scout on ebay shows plenty for sale. This is the model I have: https://www.ebay.co.uk/itm/Robin-PSC...wAAOSwXMZeWOwj Live to Neutral testing will be fine, but you will have to defeat the RCD to test L to E or spend more money on a RCD friendly loop tester, they work in a similar way but use multiple shorter duration pulses that the RCD does not "see". Results are the same from either. The electrician that did the new work on your property should have carried out a test such as this and the results recorded on the paperwork submitted to yourself. He could choose to do a loop test with the aforementioned tester or an "R1+R2" test shown here: https://www.youtube.com/watch?v=xQgDd2mysu0
__________________
Remember what the dormouse said: Feed your head.... |
01-03-2020, 01:30 | #12 | |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
Thanks for the reply & detail.
Quote:
Unfortunately when the electrical work was carried out the first guy who I had a lot of confidence in was taken ill so all the upstairs wiring was done with regular checks with me visiting the site. When it came to wiring the downstairs & the consumer unit a second electrician was involved. I was not consulted about any of the downstairs wiring I just found it done when I visited the site at the weekend. As a result some sockets were missed - a lot of stuff was not quite as I wanted it but the walls had been plastered - in the end I did a bit of a deal to accept the electrical work that was done in exchange for not being charged for some extra kitchen work. Within a couple of months of moving back home we had fuses tripping - after a couple of visits this was resolved. As a result of this I took out some wiring insurance for 12 months as I had lost confidence in the wiring. To be fair it has not faulted again so I have not bothered with further cover. It might be a good start if I just checked a couple of sockets myself & if they are okay I might just change one of the questionable double sockets. Its a cheap fix - as has been said it might be just one double socket with a iffy switch. It might be worth me just getting a professional in to check the ring mains properly and pay the cost for peace of mind. I have no idea what order of magnitude that would be. I have lived in this house since 1984 and did a lot of the extra socket wiring myself including moving & replacing the consumer unit so I knew my wiring very well. The re-wire is a complete unknown to me in so many ways. We even lost the split load consumer unit in the process but we have many more RCB fuses. |
|
01-03-2020, 07:39 | #13 |
Senior Member
Join Date: Nov 2009
Location: Norfolk, Poringland NR14
Vehicle: Terrano 3.0 SVE 2002
Posts: 1,549
|
The relevant paperwork is the Electrical Installation Certificate (EIC), within this there will be a section headed "Schedule of test results for the installation" this is a record of the test results for ALL circuits supplied from the C.U. This testing and documentation is mandatory for the work to be compliant with building regulations and BS7671.
Not having the "split load" CU is not a bad thing, as it sounds as though the electrician has used an RCBO for each circuit so a fault will only affect that individual circuit. An RCBO is a combined MCB+RCD in one breaker so is capable of tripping on either overload or earth leakage. Some RCBO's have an indicator that shows what caused the breaker to trip, over-current or leakage.
__________________
Remember what the dormouse said: Feed your head.... |
01-03-2020, 20:10 | #14 | |
Senior Member
Join Date: Aug 2008
Location: Derby
Vehicle: Freelander & Jeep GC 3.0
Posts: 4,416
|
Quote:
To be fair the old split load consumer unit was effectively circumvented as when the fire in the roof space started it affected the upstairs loft circuits first so the lighting failed almost immediately then the circuits tripped due to the shower supply tripping. So much for lighting in the event of a fire! Good job we were downstairs. |
|
|
|