<HTML><HEAD></HEAD>
<BODY dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>This is off topic, but members of the group may be able to help with advice
as many of you have backgrounds in Radio and Television Broadcasting.</DIV>
<DIV> </DIV>
<DIV>A Film and Tape Audio-Visual Archive (where I have previously carried out
quad restoration work using an AVR1 - the connection?) is not permitted to store
Videotape/Safety Film and Nitro-Cellulose (Nitrate) film in the same
building. Except for very small quantities undergoing restoration the bulk
of the Nitrate Film collection had to be stored in disused ammunition bunkers in
an isolated spot in the countryside.</DIV>
<DIV> </DIV>
<DIV>About two years ago this Archive and the Government Archive combined their
Nitrate Film Collections in a brand new purpose built climate controlled secure
vault in a secret location. Very commendable - but I have found the
location and I see there may be a big problem.</DIV>
<DIV> </DIV>
<DIV>About 40 Km from the city centre is an AM Radio Transmission site.
There are five transmitters with a combined output of about 150 KW. They
had two masts one 220 meters high and the other 137 meters. However
recently the 220 meter mast was discovered to have a corrosion problem and was
dropped with explosives. It was this activity that drew my attention to
the site. To my surprise I found the new Nitrate Film vault.
It had been built here over the top of the ground radials for the 220 meter mast
and 0.5 km from the 137 meter mast.</DIV>
<DIV> </DIV>
<DIV>Nitrate Film is extremely flammable....it has almost the same composition
as Nitro-Glycerine a very hot burning explosive (5000 degrees C). Having a
large quantity of this stuff located in a very strong RF electromagnetic field
is asking for trouble. The films are in individual metal containers
stacked 8 high on painted metal shelving. My theory is each stack of 8
cans will be acting as an aerial and there will be a large RF potential
difference between the bottom of the stacks and the shelving. This is an
ignition or detonation source only being suppressed by a thin layer of
paint. Because the transmitters run 24/7 if an arc starts it will not
stop.</DIV>
<DIV> </DIV>
<DIV>I spoke to the local council about the danger. They assured me the
vault has a 4 hour fire rating therefore complied with regulations.</DIV>
<DIV> </DIV>
<DIV>Anyone agree with me this is a very dangerous
situation?</DIV></DIV></DIV></BODY></HTML>