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On ebay - RCD circuit breaker caravan camper boat 240 volt mains



 
 
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  #1 (permalink)  
Old August 8th 05, 12:37 PM posted to uk.rec.caravanning
Mathew J. Newton
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains


Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit breaker
(no more blown fuses).


An 80mA trip level is insufficient protection against electrocution.

Mathew

Ads
  #2 (permalink)  
Old August 9th 05, 07:43 AM posted to uk.rec.caravanning
John
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can

be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit

breaker
(no more blown fuses).


An 80mA trip level is insufficient protection against electrocution.

Mathew


Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?
  #3 (permalink)  
Old August 9th 05, 07:43 AM posted to uk.rec.caravanning
John
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can

be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit

breaker
(no more blown fuses).


An 80mA trip level is insufficient protection against electrocution.

Mathew


Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?
  #4 (permalink)  
Old August 9th 05, 09:26 AM posted to uk.rec.caravanning
Mathew J. Newton
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

Triker wrote:
"Mathew J. Newton" wrote in message
oups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can

be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit

breaker
(no more blown fuses).


An 80mA trip level is insufficient protection against electrocution.

Mathew


Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


Not nit-picking, just pointing out that your RCD is of no use as
protection against electrocution - something the inclusion of an RCD
provides, the rating of which should be 30mA (or less but then nuisance
trips are more likely).

Mathew

  #5 (permalink)  
Old August 9th 05, 09:26 AM posted to uk.rec.caravanning
Mathew J. Newton
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

Triker wrote:
"Mathew J. Newton" wrote in message
oups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can

be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit

breaker
(no more blown fuses).


An 80mA trip level is insufficient protection against electrocution.

Mathew


Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


Not nit-picking, just pointing out that your RCD is of no use as
protection against electrocution - something the inclusion of an RCD
provides, the rating of which should be 30mA (or less but then nuisance
trips are more likely).

Mathew

  #6 (permalink)  
Old August 9th 05, 10:02 AM posted to uk.rec.caravanning
Mathew J. Newton
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

John wrote:
On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can

be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit

breaker
(no more blown fuses).

An 80mA trip level is insufficient protection against electrocution.

Mathew


Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?


Correct principle, but wrong figures. In this case, the RCD will trip
(usually within 30ms) if the outgoing and incoming differ by 80mA.

Now, 80mA @ 240v will almost certainly kill you, even for as short a
period of 30ms. 30mA, on the other hand, will almost certainly NOT
hence why it is used as a means of protecting human life.

Mathew


However, 240v at greater than 30mA will almost certainly kill you. 240v
at less than 30mA

  #7 (permalink)  
Old August 9th 05, 10:02 AM posted to uk.rec.caravanning
Mathew J. Newton
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

John wrote:
On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can

be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit

breaker
(no more blown fuses).

An 80mA trip level is insufficient protection against electrocution.

Mathew


Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?


Correct principle, but wrong figures. In this case, the RCD will trip
(usually within 30ms) if the outgoing and incoming differ by 80mA.

Now, 80mA @ 240v will almost certainly kill you, even for as short a
period of 30ms. 30mA, on the other hand, will almost certainly NOT
hence why it is used as a means of protecting human life.

Mathew


However, 240v at greater than 30mA will almost certainly kill you. 240v
at less than 30mA

  #8 (permalink)  
Old August 9th 05, 10:59 AM posted to uk.rec.caravanning
John
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

On 9 Aug 2005 03:02:25 -0700, "Mathew J. Newton"
wrote:

John wrote:
On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can
be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit
breaker
(no more blown fuses).

An 80mA trip level is insufficient protection against electrocution.

Mathew

Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?


Correct principle, but wrong figures. In this case, the RCD will trip
(usually within 30ms) if the outgoing and incoming differ by 80mA.

Now, 80mA @ 240v will almost certainly kill you, even for as short a
period of 30ms. 30mA, on the other hand, will almost certainly NOT
hence why it is used as a means of protecting human life.

Mathew


Not quite sure what you are going on about but a 30mA RCD, (or even
100mA) is a relatively small figure when compared to the current that
may flow in an earth fault without such protection (hundred of amps).
Neither would kill you in the time given if they are working
correctly, just not possible which is why they are so great.

Worth noting for those unsure an RCD is NO GOOD for 12/24 volts and no
substitute for bad wiring.

RCD's don't need an earth either as it monitors live and neutral to
detect an imbalance in the live and neutral currents. A current
overload, however large, cannot be detected.
  #9 (permalink)  
Old August 9th 05, 10:59 AM posted to uk.rec.caravanning
John
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

On 9 Aug 2005 03:02:25 -0700, "Mathew J. Newton"
wrote:

John wrote:
On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can
be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit
breaker
(no more blown fuses).

An 80mA trip level is insufficient protection against electrocution.

Mathew

Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?


Correct principle, but wrong figures. In this case, the RCD will trip
(usually within 30ms) if the outgoing and incoming differ by 80mA.

Now, 80mA @ 240v will almost certainly kill you, even for as short a
period of 30ms. 30mA, on the other hand, will almost certainly NOT
hence why it is used as a means of protecting human life.

Mathew


Not quite sure what you are going on about but a 30mA RCD, (or even
100mA) is a relatively small figure when compared to the current that
may flow in an earth fault without such protection (hundred of amps).
Neither would kill you in the time given if they are working
correctly, just not possible which is why they are so great.

Worth noting for those unsure an RCD is NO GOOD for 12/24 volts and no
substitute for bad wiring.

RCD's don't need an earth either as it monitors live and neutral to
detect an imbalance in the live and neutral currents. A current
overload, however large, cannot be detected.
  #10 (permalink)  
Old August 9th 05, 11:29 AM posted to uk.rec.caravanning
Mathew J. Newton
external usenet poster
 
Posts: 29
Default On ebay - RCD circuit breaker caravan camper boat 240 volt mains

John wrote:
On 9 Aug 2005 03:02:25 -0700, "Mathew J. Newton"
wrote:

John wrote:
On Mon, 8 Aug 2005 22:36:03 +0100, "Triker"
wrote:


"Mathew J. Newton" wrote in message
roups.com...

Triker wrote:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7991718456

De-Luxe Mobile Mains Consumer Unit

RCD protection, can be used for caravan, boat or home.

Three outlet sockets. clip on the back for attachment to a pole, or can
be
screwed to a wall.

25A x 80mA. Earth leakage circuit breaker. 10 amp miniature circuit
breaker
(no more blown fuses).

An 80mA trip level is insufficient protection against electrocution.

Mathew

Well maybe it's suposed to 30. So whats your problem, or do you nit pick on
everything.


I don't think the mA matters as I understand it trips whenever the
amount "going" differs from the amount "returning" by approximately 5
milliamps.

And that's how it works?


Correct principle, but wrong figures. In this case, the RCD will trip
(usually within 30ms) if the outgoing and incoming differ by 80mA.

Now, 80mA @ 240v will almost certainly kill you, even for as short a
period of 30ms. 30mA, on the other hand, will almost certainly NOT
hence why it is used as a means of protecting human life.

Mathew


Not quite sure what you are going on about but a 30mA RCD, (or even
100mA) is a relatively small figure when compared to the current that
may flow in an earth fault without such protection (hundred of amps).
Neither would kill you in the time given if they are working
correctly, just not possible which is why they are so great.


You clearly do not know what you're talking about. You're right in
saying that 100mA is considerably less than what might otherwise flow,
but it is *not* low enough to avoid electrocution, cardiac arrest etc.
Do you really think you would draw *100's* of Amps if you came into
contact with the mains? Exactly how low a resistance do you think your
body would have when touching a live conductor? (Hint: Use ohms law for
a rough approximation as to how low a resistance you'd need to draw
even 100 amps).

But don't take my word for it, check out the shock curves at
http://www.memonline.com/rcd3.html.

As you can see, the use of a 30mA RCD will mean that any earth fault
(such as you touching the phase) will result in you remaining in Zones
1, 2 and 5 - all 'safe' (i.e. not going to kill you at least). There is
also a slight risk that you may fall within Zone 3 if you're unlucky
enough to be drawing a constistent current of slight-under 30mA.

However, the use of an 80mA (not explicitly shown but you can calculate
its position) means that a condition within Zone 3 and 4 are likely -
both can easily result in electrocution or other severe consequences.

Hope that clarifies,

Mathew

 



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