30 to 15 amp connector
I want a cost effective means of connecting a regular household-type
extension cord to a 30 amp pedestal connection (like when I use my electric
pressure washer on the dock). I know Hubbel (?) makes one, but it's pricey.
See attached - is this the same connection (it's for an RV)? Thanks, Jim
_http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=65943&?utm
source=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232
(http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=65943&?utm_s
ource=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232)
I think RVs use a different connector than boats.
In any case, despite the description, from the picture I think that
adaptor goes the wrong way for what you want - I assume that it is
shown plugged into the power inlet on an RV, so it will be 30 amp
female to 15 amp male - to allow you to plug the RV into a standard
household outlet. You need 30 amp male to 15 amp female.
Thursday, September 10, 2009, 11:29:48 AM, JHWardJr wrote:
Jac> I want a cost effective means of connecting a regular household-type
Jac> extension cord to a 30 amp pedestal connection (like when I use my electric
Jac> pressure washer on the dock). I know Hubbel (?) makes one, but it's pricey.
Jac> See attached - is this the same connection (it's for an RV)? Thanks, Jim
Jac>
Jac> _http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=65943&?utm
Jac> source=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232
Jac> (http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=65943&?utm_s
Jac> ource=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232)
--
Peter Bennett, VE7CEI Vancouver, B.C., Canada
Ennos 31 "Honeycomb"
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
I looked further, and found a 30 amp RV cable (item #66122-2VGA,
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=66122
) where you can see the RV "crowfoot" male connector - definitely not
the same as the marine connector!
Thursday, September 10, 2009, 12:48:42 PM, Peter wrote:
PB> I think RVs use a different connector than boats.
PB> In any case, despite the description, from the picture I think that
PB> adaptor goes the wrong way for what you want - I assume that it is
PB> shown plugged into the power inlet on an RV, so it will be 30 amp
PB> female to 15 amp male - to allow you to plug the RV into a standard
PB> household outlet. You need 30 amp male to 15 amp female.
PB> Thursday, September 10, 2009, 11:29:48 AM, JHWardJr wrote:
Jac>> I want a cost effective means of connecting a regular household-type
Jac>> extension cord to a 30 amp pedestal connection (like when I use my electric
Jac>> pressure washer on the dock). I know Hubbel (?) makes one, but it's pricey.
Jac>> See attached - is this the same connection (it's for an RV)? Thanks, Jim
Jac>>
Jac>> _http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=65943&?utm
Jac>> source=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232
Jac>> (http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=65943&?utm_s
Jac>> ource=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232)
--
Peter Bennett, VE7CEI Vancouver, B.C., Canada
Ennos 31 "Honeycomb"
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
" I want a cost effective means of connecting a regular household-type
extension cord to a 30 amp pedestal connection"
http://www.amazon.com/Conntek-Locking-Adapter-L5-30P-20R30126/dp/B001H9TSEW
Rip Tyler
m/v Severn Exposure
Pearson True North 38
Weems Creek, Annapolis, MD
What is being asked for is inherently unsafe.
The whole concept of over current protection is to limit the current to a
value less than what the wire can stand up to. Therfore a 15 A ampacity
cord plugged into a 30 amp outlet is NOT SAFE. It will not be UL approved
and if a fire results your insurance company will laugh and walk away.
The chinese will sell you anything regardless of how unsafe it might be.
Note! they also sell fire works.
Buyer beware!
Arild
----- Original Message -----
From: "Rip Tyler" riptyler@verizon.net
" I want a cost effective means of connecting a regular household-type
extension cord to a 30 amp pedestal connection"
http://www.amazon.com/Conntek-Locking-Adapter-L5-30P-20R30126/dp/B001H9TSEW
Rip Tyler
2elnav@netbistro.com writes:
What is being asked for is inherently unsafe.
Right on. That's exactly what I thought when I saw it.
You have two choices if you want to do this right:
Choice 1, the really good choice, it to go to Home Despot and buy a small
Square D breaker panel, some 10-3 flexible cable, a twist-lock connector,
some 15 amp breakers and a few duplex outlets. Bolt it all to a plywood
subpanel, wire it up with the #10 to the input of the breaker panel and the
duplex outlets fed through the 15 amp breakers and you have an instant source
of power on the dock.
Choice 2 is a bit cheekier, but it's what I did. Go to Home Despot and buy
the best power bar they have. Make sure it has a 15 amp breaker on the input.
Now snip the plug from the power bar and replace it with a 30A twist-lock
plug. Plug that into the dock and you have breaker-protected outlets. This is
slightly less safe, since you do still have a #16 cable being fed by a 30A
circuit, but in practice the 15A breaker in the power bar will protect you.
Scott Welch
Chief Evangelist, Open Text Social Media Group
www.opentext.com
905 762 6101
"Things turn out best for people who make the best of the way things turn
out." - John Wooden
Thursday, September 10, 2009, 4:55:25 PM, 2elnav wrote:
2nc> What is being asked for is inherently unsafe.
2nc> The whole concept of over current protection is to limit the current to a
2nc> value less than what the wire can stand up to. Therfore a 15 A ampacity
2nc> cord plugged into a 30 amp outlet is NOT SAFE. It will not be UL approved
2nc> and if a fire results your insurance company will laugh and walk away.
2nc> The chinese will sell you anything regardless of how unsafe it might be.
2nc> Note! they also sell fire works.
2nc> Buyer beware!
2nc> Arild
While I agree that the requested adaptor is illegal, immoral, and
probably fattening, it can be useful on occasion. The user must, of
course, be aware that he should not draw more than 15 amps through it.
--
Peter Bennett, VE7CEI Vancouver, B.C., Canada
Ennos 31 "Honeycomb"
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
Do not fail to use a GFI
Greg and Susan Han
Allegria -- Krogen Whaleback #16
On Thu, Sep 10, 2009 at 2:29 PM, JHWardJr@aol.com wrote:
I want a cost effective means of connecting a regular household-type
extension cord to a 30 amp pedestal connection (like when I use my electric
pressure washer on the dock). I know Hubbel (?) makes one, but it's
pricey.
See attached - is this the same connection (it's for an RV)? Thanks, Jim
source=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232
ource=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232)
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Do not fail to use a GFI Outlet
The 30 a circuit is not GFI protected
Greg and Susan Han
Allegria -- Krogen Whaleback #16
On Thu, Sep 10, 2009 at 2:29 PM, JHWardJr@aol.com wrote:
I want a cost effective means of connecting a regular household-type
extension cord to a 30 amp pedestal connection (like when I use my electric
pressure washer on the dock). I know Hubbel (?) makes one, but it's
pricey.
See attached - is this the same connection (it's for an RV)? Thanks, Jim
source=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232
ource=internet_email&utm_medium=email&utm_campaign=3709B&r=5793_153232)
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
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email address, etc) go to:
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Trawlers & Trawlering and T&T are trademarks of Water World
Productions. Unauthorized use is prohibited.
These things are used all the time around here. Divers use them to plug
their compressors in dockside. The boat waxers use them to plug in their
buffers / polishers. I use mine (home-made from marine parts) to plug in my
shop fan and a couple of times a year, guitar amplifiers and PA systems.
Keith
How come it takes so little time for a child who is afraid of the dark to
become a teenager who wants to stay out all night?
-----Original Message-----
While I agree that the requested adaptor is illegal, immoral, and probably
fattening, it can be useful on occasion. The user must, of course, be aware
that he should not draw more than 15 amps through it.
Ah, Ha! Just as Arild said, inherently unsafe and probably fattening.
Ron
-----Original Message-----
From: Keith
I use mine (home-made from marine parts) to plug in my
shop fan and a couple of times a year, guitar amplifiers and PA systems
No good mariner would be without one of these little adapters. I have a
Marinco 81A. I have used it exactly as suggested, to run a power tool on
the docks. I have also found it invaluable in diagnosing a shore power
problem. Just this summer we pulled into an assigned transient slip and
daisy chained power cords to a horrible looking shore power outlet and came
up empty. The guy on the radio at the marina did not want to walk down the
dock and insisted that their power was good. The only way I could get him
to move his butt and flip a breaker that I did not have access to was to
plug in a drill directly to the 30 amp outlet and show him his power was
dead.
Do we know that it is unsafe to run 30 amps through a 14 awg wire? Uniform
building code says it is not acceptable. That is a very conservative
standard for construction of buildings. I have a hunch that it is safe for
a short term temporary connection. Anyone willing to run the test?
My little 81A says "CAUTION Amperage drawn thru this adapter should be
limited to the lowest rated end" It also has the UL emblem. It does not
say "Drawing 30 amps is a misdemeanor and will void all insurance policies"
<g>
The bottom line is use common sense. These things are very handy.
Eric Thoman
Abyssinia
----- Original Message -----
From: "Kim Boyce & Eric Thoman" kimeric@gocarefully.com
Do we know that it is unsafe to run 30 amps through a 14 awg wire?
Uniform
building code says it is not acceptable. That is a very conservative
standard for construction of buildings. I have a hunch that it is safe
for
a short term temporary connection. Anyone willing to run the test?
The bottom line is use common sense. These things are very handy.
REPLY
okay here is the deal. The majority of #14 Ga extension cords are rated
good for 15Aand will have PVC insulation rated for 75C or maybe 85C at
most.
In theory this insulation will carry 20A for a short while. But the wire
will get hot. In fact it will get so hot the PVC softens. It will not
burst into flame. (yet)
BUT unless the cord is run exactly in a straight line you will develop
problems where it bends.
The softened plastic isulation will deform under stress at the bend and
the wire inside will push out to the side. If the insulation allows the
wire to move far enough it will exit the insulation. The other wires will
also shift. Tests have demonstrated that this usually results in a short
circuit, sometimes with an arc that could cause fires.
Its one thing to tap-off for one power tool right there on the dock and run
a tool that inherently limited to less than 15 amps. It is quite another to
plug in a boat system or other large load using a #14 Ga extension cord.
This was the implication of the original post.
Electrical codes have developed because so many people demonstrate a lack of
common sense. But I suppose in the land of the free everyone should be
allowed to place themsleves at risk. Just don't involve somebody else.
Arild
2elnav@netbistro.com writes:
Electrical codes have developed because so many people demonstrate a lack of
common sense. But I suppose in the land of the free everyone should be
allowed to place themsleves at risk. Just don't involve somebody else.
Yes, it's a good thing that there have never been any fires at docks caused
by overloaded electrical connections. Such a fire might endanger not only
your own boat but every other boat on the dock. But I guess that's pretty
unlikely. After all, these electrical codes are just stupid rules dreamed up
by pencil-necked bureaucrats with nothing better to do.
Scott