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davidh1996

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Hey guys, got one more question. From responses i have seen that for a wireless system people were questioning how the fridge would be powered. 

So my question is, how many of you require the fridge to be powered on the journey to your destination?

Edited by davidh1996

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8 minutes ago, davidh1996 said:

Hey guys, got one more question. From responses i have seen that for a wireless system people were questioning how the fridge would be powered. 

So my question is, how many of you require the fridge to be powered on the journey to your destination?

 

Most if not all of us I recon :-)    And its not just fridge, as said above its also charging.

 

So you have let me down you mean then its not a wireless 12v system then, a bit like QI in the phone world?  :-)  back to the drawing board lol

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4 hours ago, AJGalaxy2012 said:

Because you need power to operate them.

Thats not a problem, there is a big battery in the caravan!

(Charged by solar panels if not connected to the car or on ehu).

Edited by bubble2015

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22 hours ago, bubble2015 said:

My rear view camera connects itself wirelessly - why not the lights as well?

And yes, I'd like a device to confirm the caravan lights were working - one job less for OH before we set off.

 

Why not the fridge, battery charging and ATC as well - that's a lot of amps/power but I'm sure the technology could be specified to cope.

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19 hours ago, Black Grouse said:

 

Why not the fridge, battery charging and ATC as well - that's a lot of amps/power but I'm sure the technology could be specified to cope.

yes exactly, the product isn't actually being made but we have to cover all bases

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How much power could be transmitted wirelessly?  There must be legal limits so that it does not interfere with other wireless users.   A good phone has a 4,000 mAh battery.  If this charges in, say, two hours, that would be two amps.  Wireless charging of phones occurs over distances of millimetres.  I won't answer the survey as I have not owned a caravan for a full year yet.

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On 18/10/2019 at 17:28, davidh1996 said:

Hey guys, got one more question. From responses i have seen that for a wireless system people were questioning how the fridge would be powered. 

So my question is, how many of you require the fridge to be powered on the journey to your destination?

 

Good question.

There are various posts on the forum about how easy it is to keep your fridge cold on the 24 hrs-ish Portsmouth to Sander crossing.

 

21 hours ago, Black Grouse said:

 

Why not the fridge, battery charging and ATC as well - that's a lot of amps/power but I'm sure the technology could be specified to cope.

 

So, as 1st post above, maybe we dont need power to the fridge?

And as said previously, solar panels will keep the battery charged.

ATC needs 15 amps when it activates so thats easily powered by the caravan battery and presumably it uses next to nothing when on standby.

Hmmm.

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13 minutes ago, bubble2015 said:

 

Good question.

There are various posts on the forum about how easy it is to keep your fridge cold on the 24 hrs-ish Portsmouth to Sander crossing.

 

 

So, as 1st post above, maybe we dont need power to the fridge?

And as said previously, solar panels will keep the battery charged.

ATC needs 15 amps when it activates so thats easily powered by the caravan battery and presumably it uses next to nothing when on standby.

Hmmm.

 

Keeping the fridge cold is straightforward - keeping frozen food below the specified temperature is much harder.

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On 18/10/2019 at 17:33, bubble2015 said:

Thats not a problem, there is a big battery in the caravan!

(Charged by solar panels if not connected to the car or on ehu).

Really, ok consider a 10 hr journey in the dark with lights on, see where you end up. Then arrive on site, fridge not cold, no ATC on the way and no power left for movers, great idea that!

On 18/10/2019 at 20:52, Black Grouse said:

 

Why not the fridge, battery charging and ATC as well - that's a lot of amps/power but I'm sure the technology could be specified to cope.

Oh it definitely can, nice big copper coils at the back of the car and front of the caravan, inverter to induce AC into the coils and then convert back to DC in the caravan. There would be high weight penalties, very inefficient coupling of energy to achieve what? Its pretty much a none starter. Now if consideration was given to putting motors in wheels of the caravan, a load cell in coupling and a bigger battery to make use of regen braking and assisting moving off that would have massive potential, but thats for another thread maybe :D

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30 minutes ago, AJGalaxy2012 said:

Really, ok consider a 10 hr journey in the dark with lights on, see where you end up. Then arrive on site, fridge not cold, no ATC on the way and no power left for movers, great idea that!

Oh it definitely can, nice big copper coils at the back of the car and front of the caravan, inverter to induce AC into the coils and then convert back to DC in the caravan. There would be high weight penalties, very inefficient coupling of energy to achieve what? Its pretty much a none starter. Now if consideration was given to putting motors in wheels of the caravan, a load cell in coupling and a bigger battery to make use of regen braking and assisting moving off that would have massive potential, but thats for another thread maybe :D

The sensible option for fridge, battery charging and ATC without a connecting cable would be to use a dynamo or alternator powered from the wheels. Adding a little drag to the wheels might even aid stability!

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8 hours ago, Stevan said:

The sensible option for fridge, battery charging and ATC without a connecting cable would be to use a dynamo or alternator powered from the wheels. Adding a little drag to the wheels might even aid stability!

By fitting the motors into the wheels as I suggested the fridge could easily be powered with the regen braking, the motor mover would be built in, it could remove the load from the car when moving off and assist in braking making full use of the energy, ATC function could easily be part of it too. If the battery needed charging a tiny bit of regen braking could be applied to achieve this.

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On 18/10/2019 at 11:32, davidh1996 said:

thanks for all your responses guys! the product is not something that has been made as of yet. it is market research for a 'potential' product for a business management module. It doesn't matter to us if the product would be a success or failure we just have to get as much information as possible for a pitch and say whether or not the product would be a viable investment or not.

yes this is true, it is a group project and i'm looking into one specific part of it. Other people are doing further research into that sort of thing and we will compile later on

from research from other group members i believe this law has changed in recent years

Good luck with your research. Glad I could help you with it. 

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10 hours ago, AJGalaxy2012 said:

Really, ok consider a 10 hr journey in the dark with lights on, see where you end up. Then arrive on site, fridge not cold, no ATC on the way and no power left for movers, great idea that!

Negative waves man!

If I had to tow the caravan for 10hrs in the dark I wouldnt go!

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On 18/10/2019 at 11:14, Lost in France said:

Albeit 50 years since I read the C&U and lighting regs when I was tasked with finding out if a very specialist trailer the company I worked for at the time built for the Navy was legal on the roads.

 

But I seem to remember that trailer lights had to be powered from the towing vehicle.

 

There was a unit a few years ago with a socket that you plugged in to that supplied the caravan lights so you could unhitch a caravan in the dark and use the mover at the side of the road without cars running into it . Don't know if it is still available but the trailer was on a public highway not powered by the tow vehicle .

 

 

Dave

Edited by CommanderDave

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On 18/10/2019 at 16:28, davidh1996 said:

Hey guys, got one more question. From responses i have seen that for a wireless system people were questioning how the fridge would be powered. 

So my question is, how many of you require the fridge to be powered on the journey to your destination?

 

The fridge can simply run off gas while in transit by just changing the regulator and with LED road position lights so low drain .

 

The other option is a compressor fridge which will be lower drain than a absorbing one . Solar panels will keep the battery charged and 2x200ah lithium batteries is the way forward in touring caravans to break the need for a EHU and make these TOURING caravans again .

Edited by CommanderDave

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11 minutes ago, CommanderDave said:

The fridge can simply run off gas while in transit

Are you for real?????????????????

 

It is so stupid to suggest that .

All gas should be turned off during transit for safety  and it is totally irresponsible to suggest what you have. 

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33 minutes ago, Brecon said:

Are you for real?????????????????

 

It is so stupid to suggest that .

All gas should be turned off during transit for safety  and it is totally irresponsible to suggest what you have. 

Are you not aware that many motor homes are equipped, as standard, with a regulator which incorporates a crash sensor cut out so that gas can be used on the move?  It can also be fitted to caravans.

https://www.truma.com/uk/en/products/truma-caravan-rv-gas-fittings/truma-monocontrol-cs.html

 

Truma also make a dual cylinder auto-changeover regulator with the sensor.

Edited by Legal Eagle

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Our new Swift caravan comes with the dual cylinder auto changeover regulator with crash sensor. It means that we can use gas appliances if we want to whilst towing. Not sure that we will use it much if at all but will wait and see.

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14 minutes ago, Legal Eagle said:

Are you not aware that many motor homes are equipped, as standard, with a regulator which incorporates a crash sensor cut out so that gas can be used on the move?  It can also be fitted to caravans.

https://www.truma.com/uk/en/products/truma-caravan-rv-gas-fittings/truma-monocontrol-cs.html

 

Truma also make a dual cylinder auto-changeover regulator with the sensor.

As a Gas Safe registered engineer and a fully qualified NCC Approved Workshop I am very aware of gas safety regulations and what is safe and what is not.

You may be something to do with legal things but never ever try and tell me what is right or wrong regarding gas safety.

 

Yes there is a system which was designed allow heating to be used in motorhomes, but it was  not designed for  anything else and was never designed for a caravan.

 

A fridge would never work in either vehicle as the flame is so small that it would blow out as soon as the vehicle was moving.

The heater in a motorhome however has a different flue arrangement to stop this , but the fridge does not.

Also the flame in a heater is totally enclosed , the fridge flame is not and there have been several instances of fires in the burner area , and they were on sites, not moving ! 

 

Another point is that with a naked flame one would never be able to stop at a fuel station without first switching it off, and should you travel by sea and left the gas appliance on, you would be liable to be charged with endangering the ship and passengers,,,,get out of that !!!!

 

 

Edited by Brecon
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5 minutes ago, Brecon said:

As a Gas Safe registered engineer and a fully qualified NCC Approved Workshop I am very aware of gas safety regulations and what is safe and what is not.

You may be something to do with legal things but never ever try and tell me what is right or wrong regarding gas safety.

 

Yes there is a system which was designed allow heating to be used in motorhomes, but it was  not designed for  anything else and was never designed for a caravan.

 

A fridge would never work in either vehicle as the flame is so small that it would blow out as soon as the vehicle was moving.

The heater in a motorhome however has a different flue arrangement to stop this , but the fridge does not.

Also the flame in a heater is totally enclosed , the fridge flame is not and there have been several instances of fires in the burner area , and they were on sites, not moving ! 

 

 

 

My fridge has worked on gas in 90 mph gales on a number of occasions .

 

 

Dave

Edited by CommanderDave

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6 minutes ago, pfr said:

Our new Swift caravan comes with the dual cylinder auto changeover regulator with crash sensor. It means that we can use gas appliances if we want to whilst towing. Not sure that we will use it much if at all but will wait and see.

Having that system does not mean that you can use gas appliances whilst moving as no one is allowed to be in the van on tow !

The crash sensor is just that,a crash safety sensor.

2 minutes ago, CommanderDave said:

 

My fridge has worked on gas in 90 mph gales on a number of occasions .

 

 

Dave

So what?

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1 minute ago, Brecon said:

Having that system does not mean that you can use gas appliances whilst moving as no one is allowed to be in the van on tow !

The crash sensor is just that,a crash safety sensor.

Are you saying that I could not run the fridge or heating whilst towing? We obviously would not be in the caravan whilst towing but could we not decide to run the fridge on gas to keep it cool? If you are saying that it is not possible to use any gas appliances whilst towing then of course I will take this up with Swift and Truma.

For the avoidance of doubt here is the link to the system in our caravan. https://www.truma.com/uk/en/products/truma-caravan-rv-gas-fittings/truma-duocontrol-cs.html

It seems very clear that you can operate gas appliances in a caravan or motorhome. If this is not true or illegal then this would be a serious matter.

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4 minutes ago, pfr said:

Are you saying that I could not run the fridge or heating whilst towing? We obviously would not be in the caravan whilst towing but could we not decide to run the fridge on gas to keep it cool? If you are saying that it is not possible to use any gas appliances whilst towing then of course I will take this up with Swift and Truma.

 

It is for caravans and motorhomes to allow the gas appliances to run on gas while on the road .

 

 

Dave

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23 minutes ago, Brecon said:

As a Gas Safe registered engineer and a fully qualified NCC Approved Workshop I am very aware of gas safety regulations and what is safe and what is not.

You may be something to do with legal things but never ever try and tell me what is right or wrong regarding gas safety.

 

Yes there is a system which was designed allow heating to be used in motorhomes, but it was  not designed for  anything else and was never designed for a caravan.

 

A fridge would never work in either vehicle as the flame is so small that it would blow out as soon as the vehicle was moving.

The heater in a motorhome however has a different flue arrangement to stop this , but the fridge does not.

Also the flame in a heater is totally enclosed , the fridge flame is not and there have been several instances of fires in the burner area , and they were on sites, not moving ! 

 

Another point is that with a naked flame one would never be able to stop at a fuel station without first switching it off, and should you travel by sea and left the gas appliance on, you would be liable to be charged with endangering the ship and passengers,,,,get out of that !!!!

 

 

Keep your hair on!😂

I haven't tried to tell you anything about gas safety. Not knowing your connections to the industry, I innocently made reference to a gas safety product which is available.

 

Maybe you should get back into bed then get out of the right side this morning, then apologise for your unwarranted outburst.

What do I need to get out of?? I haven't made any incorrect or inaccurate statements about gas safety or gas use nor have I ranted at you.

Edited by Legal Eagle
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4 minutes ago, pfr said:

Are you saying that I could not run the fridge or heating whilst towing? We obviously would not be in the caravan whilst towing but could we not decide to run the fridge on gas to keep it cool? If you are saying that it is not possible to use any gas appliances whilst towing then of course I will take this up with Swift and Truma.

Swift and Truma would be inclined to cite safety reasons and probably also legal reasons for not using gas to cool the fridge when towing.

The caravan fridge could be powered, when towing, by 12v electrickery supplied through pin 10 of a 13 pin socket.

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