Safety bananas

A

Andre Majorel

Guest
Could someone point me to a document explaining how safety
banana sockets work ? Probably supidity on my part but when I
look at models such as these

http://www.rapidonline.com/netalogue/photos/M078197W01.jpg

I have trouble understanding how they could possibly work with
normal, non-safety banana plugs.

Thanks in advance.

--
André Majorel http://www.teaser.fr/~amajorel/
J'ai des droits. Les autres ont des devoirs.
 
In article <slrnj5isc4.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...
Could someone point me to a document explaining how safety
banana sockets work ? Probably supidity on my part but when I
look at models such as these

http://www.rapidonline.com/netalogue/photos/M078197W01.jpg

I have trouble understanding how they could possibly work with
normal, non-safety banana plugs.

Thanks in advance.


I got a page not found error, but I assume you mean safety plugs like
Click to expand...
those found on newer DMMs???
I looked at mine and there is no reason a non-safety type wouldn't touch
the internal conductor of the jack. In fact I tried it out and it
worked fine. Maybe *I* am missing something here, but they look and act
backwards compatible.

Jim
 
On 2011-08-29, WangoTango <Asgard24@mindspring.com> wrote:
In article <slrnj5isc4.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...
Could someone point me to a document explaining how safety
banana sockets work ? Probably supidity on my part but when I
look at models such as these

http://www.rapidonline.com/netalogue/photos/M078197W01.jpg

I have trouble understanding how they could possibly work with
normal, non-safety banana plugs.

I got a page not found error, but I assume you mean safety plugs like
those found on newer DMMs???
Click to expand...
Sorry, Rapid's web site is being worked on. Here's another one :

http://uk.farnell.com/productimages/farnell/standard/1011404-40.jpg

I looked at mine and there is no reason a non-safety type wouldn't touch
the internal conductor of the jack. In fact I tried it out and it
worked fine. Maybe *I* am missing something here, but they look and act
backwards compatible.
Click to expand...
Seems the female contact is buried deep inside a plastic tube of
inner diameter 4 mm. It looks to me like the plastic body of a
non-safety plug would bump into the tube before the pin is fully
inserted in the female contact.

--
André Majorel http://www.teaser.fr/~amajorel/
J'ai des droits. Les autres ont des devoirs.
 
In article <slrnj5p0a7.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...
On 2011-08-29, WangoTango <Asgard24@mindspring.com> wrote:
In article <slrnj5isc4.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...
Could someone point me to a document explaining how safety
banana sockets work ? Probably supidity on my part but when I
look at models such as these

http://www.rapidonline.com/netalogue/photos/M078197W01.jpg

I have trouble understanding how they could possibly work with
normal, non-safety banana plugs.

I got a page not found error, but I assume you mean safety plugs like
those found on newer DMMs???

Sorry, Rapid's web site is being worked on. Here's another one :

http://uk.farnell.com/productimages/farnell/standard/1011404-40.jpg
That's what I thought.
Click to expand...

I looked at mine and there is no reason a non-safety type wouldn't touch
the internal conductor of the jack. In fact I tried it out and it
worked fine. Maybe *I* am missing something here, but they look and act
backwards compatible.

Seems the female contact is buried deep inside a plastic tube of
inner diameter 4 mm. It looks to me like the plastic body of a
non-safety plug would bump into the tube before the pin is fully
inserted in the female contact.
Click to expand...
Yes, *some* of the plugs do not make full contact, but they do make
contact. A lot of replacement plugs actually have a little extra depth
to make up the difference.

These guys would NOT make full contact :
http://www.radioshack.com/product/index.jsp?productId=2103479

These guys would :
http://www.radioshack.com/product/index.jsp?productId=2103797

I finally found something Rat Shack is still good for ;)
Their pictures.
 
On 2011-08-30, WangoTango <Asgard24@mindspring.com> wrote:
In article <slrnj5p0a7.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...

Seems the female contact is buried deep inside a plastic tube of
inner diameter 4 mm. It looks to me like the plastic body of a
non-safety plug would bump into the tube before the pin is fully
inserted in the female contact.

Yes, *some* of the plugs do not make full contact, but they do make
contact. A lot of replacement plugs actually have a little extra depth
to make up the difference.

These guys would NOT make full contact :
http://www.radioshack.com/product/index.jsp?productId=2103479

These guys would :
http://www.radioshack.com/product/index.jsp?productId=2103797
Click to expand...
Ah, the female contact must not be buried that deep, then. Means
I can put safety sockets on my stuff and still use my old
non-safety leads if I have to. Thanks !

--
André Majorel http://www.teaser.fr/~amajorel/
J'ai des droits. Les autres ont des devoirs.
 
In article <slrnj5scf5.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...
On 2011-08-30, WangoTango <Asgard24@mindspring.com> wrote:
In article <slrnj5p0a7.d27.cheney@atc5.vermine.org>,
cheney@halliburton.com says...

Seems the female contact is buried deep inside a plastic tube of
inner diameter 4 mm. It looks to me like the plastic body of a
non-safety plug would bump into the tube before the pin is fully
inserted in the female contact.

Yes, *some* of the plugs do not make full contact, but they do make
contact. A lot of replacement plugs actually have a little extra depth
to make up the difference.

These guys would NOT make full contact :
http://www.radioshack.com/product/index.jsp?productId=2103479

These guys would :
http://www.radioshack.com/product/index.jsp?productId=2103797

Ah, the female contact must not be buried that deep, then. Means
I can put safety sockets on my stuff and still use my old
non-safety leads if I have to. Thanks !
Click to expand...
I measured one of the females, and it is right at 5mm to the conductive
barrel. That would make the center of the males still make a good
amount of contact, and truly full contact on RS# 2103797 (above link).
 
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