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| Re: [GMCnet] Power distribution using circuit breakers [message #97336 is a reply to message #97282] |
Thu, 26 August 2010 15:17   |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Shrink wrapped an inline diode once, and a fusible link too. The diode
didn't like it at all and promptly melted it off. It was on an electrical
fan controller if I recall. Size the circuit breaker to the amp draw of the
normal warm circuit load plus a 10 percent overkill.
Jim Hupy
Salem, Or
78 Royale 403
On Thu, Aug 26, 2010 at 8:04 AM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:
> > Love those circuit breakers and used these boots to protect them.
> >
> >
> >
> http://order.waytekwire.com/products2/M50/140/50/200/1/Circuit%20Breaker%20Boots/Circuit%20Breaker%20Accessories/Circuit%20Protection/
> > *http://tinyurl.com/368gal6
> >
> >
> yep, liked those also, ( a little pricey) but got one with my electric
> wiper
> kit ;>)
>
> I will put these covers on a slide also, if that is ok
> gene
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Power distribution using circuit breakers [message #97339 is a reply to message #97276] |
Thu, 26 August 2010 15:29 |
zhagrieb
Messages: 676
Registered: August 2009
Location: Portland Oregon
Karma: 0
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Senior Member |
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A negative of these self resetting breakers not to be overlooked is that they'll continue to reset themselves after they cool. Not so good if the problem is a short! Can lead to burned wires and fire. Better a fuse that's not hidden or a breaker that must be manually reset.
Glenn Giere, Portland OR, K7GAG
'73 "Moby the Motorhome" 26'
[Updated on: Thu, 26 August 2010 15:30] Report message to a moderator |
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| Re: [GMCnet] Power distribution using circuit breakers [message #97432 is a reply to message #97276] |
Fri, 27 August 2010 07:05 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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I am not fond of these and that is because they often masquerade as and intermittent, and the actual situation will often be mis-reported and the actual cause can be difficult to locate. They also tend to be slow and so tolerant of an over-current conditions for too long. Yes, fuses can be expensive, but they work. If you have a situation like a macerator that is likely to be a problem, use a resetable breaker.
Finding intermittents is one of my favorite things - NOT.
In the work that I do on other people's boats there are two common issues that really get to me.
Number one is hidden inline fuses. The circuit goes dead, but everything you can find is good there just isn't any DC at the other end. They end up all kinds of places because some people are too hurried/lazy/cheap to buy enough wire. These can be close to that because the owners frequently do not understand the function.
Second is conductors that change description mid-run. So, the red the is connected at one end is orange/yellow/green at the other.
Most of my clients have boats that are over thirty years old - there is not documentation available and there is a long list of PO issues.
Thank you for listening
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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