[HCARC] Good Question Example

[Harvey N. Vordenbaum]

In my location I have an outside brick wall on the outside of my east side without windows. This was a two car garage that was enclosed in 1994 after we moved in. There was no insulation in the outside walls until the enclosure. My operating position is next to that wall. 
So I was able to access that wall from the eave overhang on the outside and run cables down the inside of the wall.
On the inside wall I made a cut out and mounted an aluminum panel about 18 in. W. by 21 in. H. (thanks to Dale and his band saw)
All the cables come thru the panel and connect to surge arrestors on the panel which has a ground wire to a stake in the ground outside.
Short jumper coaxes go the radios and amplifier which can be disconnected from the arrestors in case of threatening weather storms.
I had one lightning strike before the panel was installed which did quite a bit of damage in the rest of the house. Several minor units were damaged in the radio position. One fiber glass enclosed 2 M/70 CM antenna on the top of the tower was shattered and I was finding bits of white fiber glass around that side of the  house for quite a while.
Hv

-----Original Message-----
From: hcarc-bounces at mailman.qth.net [mailto:hcarc-bounces at mailman.qth.net] On Behalf Of Gary Johnson
Sent: Monday, February 18, 2019 8:28 AM
To: hcarc at mailman.qth.net
Subject: [HCARC] Good Question Example

This is from Tower Talk, but a good example of questions for the Relector nonetheless.  I guarantee someone in a club of over 110 members is asking this very question.  I am doing this very thing with bringing electrical and coax into my Mobile Comms trailer.

”Does anyone have any references to good examples or best practices for
setting up a flexible, maintainable system for cable entry into
(residential) buildings at or close to ground level?

Thanks es 73,


How many cables?
Do you want to be able to disconnect at entry?

How big a hole in the wall do you want?

A good way is to mount a suitable large electrical enclosure into the 
wall with an aluminum back plate. Door to the outside You ground the 
back plate and install bulkhead connectors on it.

Then, you drill holes in the bottom of the box (outside the wall) to 
route the cables through, perhaps with some grommets/foam/etc to keep 
crud out.  You can open the door to get access to the connectors.

But this is big/expensive - if you don't mind exposing the connectors to 
the elements, then setting an aluminum panel into the wall, with 
appropriate caulking/weather sealing works.”

73,

Gary J
NA3VY



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