[BC] P.O.ed by transmission line damage
Ron Cole
rondcole
Tue Jan 24 11:21:13 CST 2006
I think we had a Danger High Voltage sign on the TX Door.
On the Old Brown RCA it had large windows to look into the transmitter.
Ron Cole
On 1/24/06, SHAFFER, RANDY L <RandyShaffer at clearchannel.com> wrote:
>
> Neal wrote -
> (snip)
> >I recently had an Electrician ( IBEW) come to my site to install a
> >Voltage/current meter
> > and I was on my way to the site. when the station went off the air..
> > the kid defeated the Power interlock switch on the back of the
> >transmitter and opened the back door with the transmitter still on to
> >hook up the CT coils.. He had No idea of the Voltages inside. Thank gd
> >when the transmitter door is opened. there is an RF interlock that
> >shorts the Antenna output. good thing he didnt blowup the transmitter.
> >and the SWR trip shut it down.
> (snip)
>
> I had something like this happen a few years ago.
> We went off the air one afternoon and after a minute popped back on the
> air.
> I called the transmitter to talk to the site engineer to find out what
> happened.
> He said, you won't believe this, but the HVAC service company caused it. I
> said
> how in the world did that happen? This company has worked at our site for
> many
> years.
> Apparently they were servicing the air handler in the main TX room and
> they needed
> a part. The one service guy went out to the truck. The other guy decided
> that he
> wanted to see what was behind the blue metal door with a fan, so he opened
> it. It
> was the main door on the RCA TTU-55. Thankfully, the interlocks turned off
> the HV.
> I'm glad he didn't think the black bar was a limbo stick. As it was, he
> just looked
> inside, and was clueless as to what he had done until the site engineer
> entered the
> room.
>
> Randy Shaffer
> WLYH-TV/WHP-TV
>
>
>
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