No waterproofing on the f conn and no cable clips?
 

On Feb 13, 1:56*pm, J G Miller wrote:
On Fri, 12 Feb 2010 18:03:50 -0800, explained:

All too often the ties break.

Is this primarily due to degradation from sun light and UV irradiation?

Some of the black ones are advertised as uv proof. I find that all
black ones are OK, but other colours tend to perish. There's always
the risk though that you'll happily work your way through 500 black
ties and start to realise, months later, that in fact they are not uv
proof!

When ties first came on the market (incidentally they were about 20p
each!) I had no idea about the uv problem. I ran a catenery over a
main road and when I went back a year later the CT167 was hanging in
loops and threatening to catch on the double deckers! Whoops!

Bill

No waterproofing on the f conn and no cable clips?
 

On Sat, 13 Feb 2010 07:01:36 -0800, wrote:

I ran a catenery over a main road and when I went back a year later
the CT167 was hanging in loops and threatening to catch on the double
deckers!

Is it correct that you have to get permission from the local municipality
and/or highway authority to run cables above or below public roads?

No waterproofing on the f conn and no cable clips?
 

On Sat, 13 Feb 2010 06:01:23 -0800 (PST), Mike
wrote:

On Feb 13, 1:56*pm, J G Miller wrote:
On Fri, 12 Feb 2010 18:03:50 -0800, explained:

All too often the ties break.

Is this primarily due to degradation from sun light and UV irradiation?

Not much in the way of plastics that can survive the British weather,
but yes sunlight on plastic makes it very brittle over time and prone
to splitting and cracking. Any movement (due to wind and alighting
crows) will definitely cause breakage.

I watched a pigeon take down a neighbour's aerial. Don't know how it
was mounted or how long it had been up, the usual riggers here do a
pretty good job.

I inherited a stacked pair with a distribution amp in the attic. The
downleads weren't up to a digital signal so I had them replaced, the
guy made an excellent job of a long cable run taking it out of the
attic, down the wall and back in again, neatly tacked and with a drip
loop. And he checked where the hole was going to come out, and sealed
it properly

We're on the edge of Tacolneston here, the other side of the town is
currently behind a hill (but LOS to Mendlesham).

Recently there have been not a few Televes monstrosities going up,
they're well mounted but I'm wondering how long before bits start
breaking off, pigeons or not.

No waterproofing on the f conn and no cable clips?
 

In article
..com, Mike scribeth thus
On Feb 13, 1:56*pm, J G Miller wrote:
On Fri, 12 Feb 2010 18:03:50 -0800, explained:

All too often the ties break.

Is this primarily due to degradation from sun light and UV irradiation?

Not much in the way of plastics that can survive the British weather,
but yes sunlight on plastic makes it very brittle over time and prone
to splitting and cracking. Any movement (due to wind and alighting
crows) will definitely cause breakage.

Cable ties have long been used in Pro Two way aerial installations and
are to be found on mast's and towers for other services and I can't say
I've seen any that have snapped. Might be due to them being a far more
robust construction ...
--
Tony Sayer

No waterproofing on the f conn and no cable clips?
 

" wrote in message
...
On Feb 13, 1:56 pm, J G Miller wrote:
On Fri, 12 Feb 2010 18:03:50 -0800, explained:

All too often the ties break.

Is this primarily due to degradation from sun light and UV irradiation?

Some of the black ones are advertised as uv proof. I find that all
black ones are OK, but other colours tend to perish. There's always
the risk though that you'll happily work your way through 500 black
ties and start to realise, months later, that in fact they are not uv
proof!

When ties first came on the market (incidentally they were about 20p
each!) I had no idea about the uv problem. I ran a catenery over a
main road and when I went back a year later the CT167 was hanging in
loops and threatening to catch on the double deckers! Whoops! Over the
wire



The technique used the old Rediffusion wired/cable distribution company used
to be for a chimneys, prosperous bronze lashing wire along with heavy duty
galvanised brackets, or for walls half round brackets held by Rawlbolts,
the catenery was supported by stainless steel wire, with the cable attached
by a copper spiral spring which was pulled and stretched over the cable and
stainless steel wire.
Call me sad if you will, but I still notice the odd catenery which I know
has stood the test of time for the best part of 50 years, despite the
company now being long defunct.

No waterproofing on the f conn and no cable clips?
 

"Ivan" wrote in message
om...


" wrote in message
...
On Feb 13, 1:56 pm, J G Miller wrote:
On Fri, 12 Feb 2010 18:03:50 -0800, explained:

All too often the ties break.

Is this primarily due to degradation from sun light and UV irradiation?

Some of the black ones are advertised as uv proof. I find that all
black ones are OK, but other colours tend to perish. There's always
the risk though that you'll happily work your way through 500 black
ties and start to realise, months later, that in fact they are not uv
proof!

When ties first came on the market (incidentally they were about 20p
each!) I had no idea about the uv problem. I ran a catenery over a
main road and when I went back a year later the CT167 was hanging in
loops and threatening to catch on the double deckers! Whoops! Over the
wire



The technique used the old Rediffusion wired/cable distribution company
used to be for a chimneys, prosperous bronze lashing wire along with heavy
duty galvanised brackets, or for walls half round brackets held by
Rawlbolts, the catenery was supported by stainless steel wire, with the
cable attached by a copper spiral spring which was pulled and stretched
over the cable and stainless steel wire.
Call me sad if you will, but I still notice the odd catenery which I know
has stood the test of time for the best part of 50 years, despite the
company now being long defunct.




Oops, why does one always notice typos immediately after posting, that
should have read.. The technique used by the old Rediffusion wired/cable
distribution company, used
to be for chimneys, Phosphor bronze lashing wire...

No waterproofing on the f conn and no cable clips?
 

On Feb 13, 3:49*pm, J G Miller wrote:
On Sat, 13 Feb 2010 07:01:36 -0800, wrote:
I ran a catenery over a main road and when I went back a year later
the CT167 was hanging in loops and threatening to catch on the double
deckers!

Is it correct that you have to get permission from the local municipality
and/or highway authority to run cables above or below public roads?

Yes, although outfits like BT have wayleaves which allow them to do
pretty well anything they like. Luckily it's hard to tell a BT cable
from any other cable, if you're a council prodnose.

Bill

No waterproofing on the f conn and no cable clips?
 

In article
,
Mike wrote:
On Feb 13, 1:56 pm, J G Miller wrote:
On Fri, 12 Feb 2010 18:03:50 -0800, explained:

All too often the ties break.

Is this primarily due to degradation from sun light and UV irradiation?

Not much in the way of plastics that can survive the British weather,
but yes sunlight on plastic makes it very brittle over time and prone
to splitting and cracking. Any movement (due to wind and alighting
crows) will definitely cause breakage.

Lots of plastic used outside on some UK houses. Guttering and downpipes.
Windows and doors. The black plastic commonly used for guttering does go
brittle quite quickly - but the more expensive grey stuff used for waste
pipes survives well. As does good UPVC found on the better makes of
windows, etc. Longer than the crap softwood used for such things today.

--
*If a parsley farmer is sued, can they garnish his wages?

Dave Plowman London SW
To e-mail, change noise into sound.

No waterproofing on the f conn and no cable clips?
 

In article ,
Brian Gregory [UK] wrote:

I suppose black ties would be better than white ones.

Ah, now I understand those dinner invitations.

-- Richard
--
Please remember to mention me / in tapes you leave behind.

No waterproofing on the f conn and no cable clips?
 

On Sat, 13 Feb 2010 22:49:39 GMT, "Ivan"
wrote:
Oops, why does one always notice typos immediately after posting, that
should have read.. The technique used by the old Rediffusion wired/cable
distribution company, used
to be for chimneys, Phosphor bronze lashing wire...

You forget to correct 'catenery'