I've heard of alternating current and direct current, but...

A case of PEBKAC (Problem Exists Between Keyboard and Chair)? Tell us about your war stories!
Post Reply
User avatar
PID_Stop
Posts: 475
Joined: Thu Apr 01, 2010 11:58 am
Location: Syracuse, New York
Contact:

I've heard of alternating current and direct current, but...

Post by PID_Stop » Wed Dec 29, 2010 10:45 am

What kind of current is this?

Image

We have several thousand of these installed in our plant now, and I'm getting scared. :shock:

-- Jeff

User avatar
davedybas
Posts: 207
Joined: Wed Dec 19, 2007 8:16 pm
Location: Buffalo Grove, IL
Contact:

Re: I've heard of alternating current and direct current, bu

Post by davedybas » Wed Dec 29, 2010 10:25 pm

I don't know but it sounds a bit lewd !

Baylink
Posts: 438
Joined: Wed Dec 15, 2010 3:21 pm

Re: I've heard of alternating current and direct current, bu

Post by Baylink » Thu Dec 30, 2010 9:06 pm

Just in case you're serious in not knowing... :-)

Those are connectors (presumably; Kings is best known for their Triax connectors), which can carry current, but are not rated to "interrupt" it; this applies to circuit breakers as well; many should not be used as switches (though some people do), as they're not rated to regularly interrupt a working load.

Since Triax cables power the camera, they tend to carry high voltages.

"Interrumping" is a very amusing tpyo, though, I will agree. :-)

User avatar
PID_Stop
Posts: 475
Joined: Thu Apr 01, 2010 11:58 am
Location: Syracuse, New York
Contact:

Re: I've heard of alternating current and direct current, bu

Post by PID_Stop » Mon Jan 03, 2011 11:37 am

Baylink wrote:Just in case you're serious in not knowing... :-)

Those are connectors (presumably; Kings is best known for their Triax connectors), which can carry current, but are not rated to "interrupt" it; this applies to circuit breakers as well; many should not be used as switches (though some people do), as they're not rated to regularly interrupt a working load.

Since Triax cables power the camera, they tend to carry high voltages.

"Interrumping" is a very amusing tpyo, though, I will agree. :-)
Ummmm... yes, I have managed to become fairly familiar with BNC connectors over the course of tens of thousands of cables fabricated over the last 40 years of so. Generally, manufacturing errors take the form of forgetting to put a center pin in the bag, not something quite this prominent or amusing. :)

This particular connector is for Belden 1694A, part of a batch of 2,000 I ordered last fall. Out of curiosity I opened one of the cartons of connectors for Belden 1855 (another 2,000), and they have the same typo... but set in completely different type. I wonder if it has something to do with Kings getting bought out by Winchester...?

Baylink
Posts: 438
Joined: Wed Dec 15, 2010 3:21 pm

Re: I've heard of alternating current and direct current, bu

Post by Baylink » Mon Jan 03, 2011 12:17 pm

Yes... but do you know what BNC stands for, without looking it up? :-)

I suppose it should have occurred to me that Kings did BNCs, too.

User avatar
NECRAT
Site Admin
Posts: 2911
Joined: Sat Nov 17, 2007 9:13 pm
Location: Taunton, MA
Contact:

Re: I've heard of alternating current and direct current, bu

Post by NECRAT » Mon Jan 03, 2011 9:31 pm

Bayonet something something.... I knew it once before.
http://www.necrat.us

"Arguing with an engineer is like mud wrestling with a pig. After a couple of hours, you realize the pig likes it"

User avatar
Deep Thought
Posts: 3132
Joined: Thu Mar 20, 2008 9:23 am
Location: La Grange, IL
Contact:

Re: I've heard of alternating current and direct current, bu

Post by Deep Thought » Mon Jan 03, 2011 10:47 pm

N = Paul Neill
C = Carl Concelman

Neill also came up with the "N" connector, and it is no coincidence that a N male will fit onto a female BNC...

(disclaimer...I knew the answer...but I looked up the correct spelling for "Concelman".)
Mark Mueller • Mueller Broadcast Design • La Grange, IL • http://www.muellerbroadcastdesign.com

Baylink
Posts: 438
Joined: Wed Dec 15, 2010 3:21 pm

Re: I've heard of alternating current and direct current, bu

Post by Baylink » Mon Jan 03, 2011 10:48 pm

Ding ding ding ding...

And you would not believe the number of people (including me, until I flat had my nose rubbed in the citations) who simply refuse to believe it. :-}

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 1 guest