RCD Tripping -any suggestions

[winston1]

It is said, shaver outlets are only rated for Intermittent use, whereas Toothbrush ones are rated for continuous use

I don't really believe this. I have never seen a shaver socket marked as intermittent use only. I have used several shaver sockets for charging toothbrushes, MK, Chilton, Wallsall, Homebase Chinese import and have never had them overheat.

The only thing to be aware of is the poor regulation. On zero or low load (such as when charging) the output voltage is around 275v, but this applies to both shaver marked and ones marked with toothbrushes. I always advice using the 110v outlet (140v on low load) for toothbrush/shaver charging if they are rated 100 to 250v to reduce stress.

 

[winston1]

A shaver socket may become warm when used for a long shave ( 15 minutes perhaps ) but could become hot when used to supply power to a charger for a long period of time ( over night perhaps )

Shaver sockets are rated at 20 watts. A shaver takes typically 10 to 20 watts. A charger takes typically 1 watt. Can't see why it should overheat with a 5% continuous load.

 

[bernardgreen]

I always advice using the 110v outlet (140v on low load) for toothbrush/shaver charging if they are rated 100 to 250v to reduce stress.

Winston, are you 100% sure that using the 110 V outlet will reduce stress ? ( I thought you said USA was 120 v )

 

[RF Lighting]

I don't really believe this. I have never seen a shaver socket marked as intermittent use only.

Not like you to post wrong information @winston1

 

[SUNRAY]

I don't really believe this. I have never seen a shaver socket marked as intermittent use only. I have used several shaver sockets for charging toothbrushes, MK, Chilton, Wallsall, Homebase Chinese import and have never had them overheat.

The only thing to be aware of is the poor regulation. On zero or low load (such as when charging) the output voltage is around 275v, but this applies to both shaver marked and ones marked with toothbrushes. I always advice using the 110v outlet (140v on low load) for toothbrush/shaver charging if they are rated 100 to 250v to reduce stress.

WRONG YET AGAIN. I thought you always tell the truth and check things before you post your drivel.

 

[winston1]

Winston, are you 100% sure that using the 110 V outlet will reduce stress ? ( I thought you said USA was 120 v )

It will reduce stress on the charger or whatever is plugged in. Around 140v is less than around 275v.

Indeed the USA is 120v. What has that got to do with a UK shaver socket that has a 110v outlet?

 

[winston1]

WRONG YET AGAIN. I thought you always tell the truth and check things before you post your drivel.

I do not post drivel.

What is wrong about my statement which said:

I have never seen a shaver socket marked as intermittent use only. I have used several shaver sockets for charging toothbrushes, MK, Chilton, Wallsall, Homebase Chinese import and have never had them overheat.

I standby that. I have never seen a Deta nor its instructions so my statement is correct.

 

[winston1]

View attachment 218995

Not like you to post wrong information @winston1

That technical spec is crap and cannot be trusted.

e.g.Current rating 20VA. What is that supposed to mean? Current is measured in amps or mA. VA is an apparent power rating.

e.g. Not suitable for continuous use. Needs more explanation. Surely using it for 8 hours overnight out of 24 hours is not continuous.

e.g. Not suitable for loads of 20VA. Yet above it said current (perhaps meaning load) rating 20VA.

 

[bernardgreen]

I started to explain to Winston why his advice

I always advice using the 110v outlet (140v on low load) for toothbrush/shaver charging if they are rated 100 to 250v to reduce stress.

was wrong due to the increased heating effect of the increased current in one half of the secondary winding . But then realised it was a lost cause and deleted the explanation.

 

[winston1]

I started to explain to Winston why his advice



was wrong due to the increased heating effect of the increased current in one half of the secondary winding . But then realised it was a lost cause and deleted the explanation.

But it (shaver socket) is designed to have the full load on one half of the secondary winding.

 

[ETAF]

Found the ISSUE - E-N fault on the cable - full short circuit almost 0 ohms
its a small length of cable goes from a JB into the stud wall , down side of cupboard into a small plastic architrave pull switch.
The LEDS are double insulated, so NO earth - so thats the bit of cable, maybe <2 meters - so Earth not doing anything as all plastic
Reconnected everything up and left the earth Outside the BOX.
Its a full short - almost zero ohms - checked and pulled back the outer insulation incase it was where he cut back the outer insulation but did not see or measure anything , checked all the loft to where it disappears into the ceiling/stud wall- maybe a screw has gone through the cable when they put the plywood over the stud wall and the cable was in a hole in the stud and they happen to nick it

No idea why it suddenly happened after almost 2 years.

I have a full cert with all the measurements - so it was all insulation tested and signed off

Anyway once again , thanks for all the support and advice.

not planning on changing the shaver adapter , as mentioned guest can recharge in the bedrooms.

 

[SUNRAY]

Found the ISSUE - E-N fault on the cable - full short circuit almost 0 ohms
its a small length of cable goes from a JB into the stud wall , down side of cupboard into a small plastic architrave pull switch.
The LEDS are double insulated, so NO earth - so thats the bit of cable, maybe <2 meters - so Earth not doing anything as all plastic
Reconnected everything up and left the earth Outside the BOX.
Its a full short - almost zero ohms - checked and pulled back the outer insulation incase it was where he cut back the outer insulation but did not see or measure anything , checked all the loft to where it disappears into the ceiling/stud wall- maybe a screw has gone through the cable when they put the plywood over the stud wall and the cable was in a hole in the stud and they happen to nick it

No idea why it suddenly happened after almost 2 years.

I have a full cert with all the measurements - so it was all insulation tested and signed off

Anyway once again , thanks for all the support and advice.

not planning on changing the shaver adapter , as mentioned guest can recharge in the bedrooms.

Thanks for letting us know the outcome.

 

[SUNRAY]

I do not post drivel.

What is wrong about my statement which said:

I have never seen a shaver socket marked as intermittent use only. I have used several shaver sockets for charging toothbrushes, MK, Chilton, Wallsall, Homebase Chinese import and have never had them overheat.

I standby that. I have never seen a Deta nor its instructions so my statement is correct.

Oh I see... So you have only looked at the front of the device... and yet again failed to do any investigating before making a factually incorrect statement based on nothing.

I STAND BY MY COMMENT THE INFORMATION YOU STATED WAS YET AGAIN WRONG.

 

[SUNRAY]

I started to explain to Winston why his advice



was wrong due to the increased heating effect of the increased current in one half of the secondary winding . But then realised it was a lost cause and deleted the explanation.

I was going to do something similar and expain how SMPS's actually consume more power on lower voltages but then I remembered he isn't interested in factual information.

 

[winston1]

Oh I see... So you have only looked at the front of the device... and yet again failed to do any investigating before making a factually incorrect statement based on nothing.

I STAND BY MY COMMENT THE INFORMATION YOU STATED WAS YET AGAIN WRONG.

Rubbish. I state again:

I have never seen a shaver socket marked as intermittent use only.

I never said there were not any, I said I have never seen any.

PLEASE APOLOGISE FOR SAYING I WAS WRONG.