On Fri, 11 Jul 2014 11:47:07 -0700 (PDT), jamesgang
I was thinking 3/4" was adequate for a "raceway" (or as someone else
called it, a bushing) which would allow romex to be freely pulled
through, yet both protect it and prevent fire and smoke from a damaged
cable from being circulated through the "plenum" - or air handling
On Sat, 12 Jul 2014 00:18:05 +0000 (UTC), Doug Miller
Not necessarily obvious as I have drilled 12 feet through 16" on
center joists in a blind space and came out virtually dead center of
the last joist, with no access other than the first joist, where I had
totally open access, and the last joist where I had a 10" square hole
in the floor... It took 4 3 foot sections of 1/2" Sched 40 water pipe
and 3 pipe couplings to do it, using a 1 1/4", iirc, forstner bit.
On Saturday, July 12, 2014 12:21:28 AM UTC-4, philo wrote:
Except of course that reason makes no sense. You could use Romex that goes
through the center of joists even easier as a means to hang clothes, etc.,
yet running it that way is permitted. And no matter what you do with a ru
nning board, unless you cover the cable, or somehow make it inaccessible, i
nstead of doing it like 99% of the running boards out there, it's still not
going to be very hard to get one of the thin wire coat hangers around the
Yes, but I might as well just do what the code says.
Anyway, I have the first run of Romex up there and will do a second run
While I was up on the ladder near the ceiling...the cat had to see what
I was doing and somehow got up on the main beam just below the floor
just to check out what I was doing...and to clear out quite a few cobwebs!
On Saturday, July 12, 2014 11:15:14 AM UTC-4, philo wrote:
a running board, unless you cover the cable, or somehow make it inaccessibl
e, instead of doing it like 99% of the running boards out there, it's still
not going to be very hard to get one of the thin wire coat hangers around
I agree, a running board is an easy solution. I'm just saying that
the alleged reason for the code, doesn't make much sense, because you
can very easily hang stuff off of Romex that goes through joist holes
Codes often overlook common sense.
I am a member of an organization where at their previous location was
required to make the bathroom fully handicap equipped.
No problem with that except it was on the second floor accessible by
stairs only. No elevator was required.
On Fri, 11 Jul 2014 23:25:26 -0400, email@example.com wrote:
FYI on fill
Table 1 Percent of Cross Section of Conduit and Tubing for Conductors
(2) Table 1 applies only to complete conduit or tubing systems and
is not intended to apply to sections of conduit or tubing used to
protect exposed wiring from physical damage.
On Sat, 12 Jul 2014 00:18:00 -0400, firstname.lastname@example.org wrote:
My experience has been in commercial - where just about anything can
be considered a "plenum" so I use nothing but plenum rated cable. It's
a bit more expensive, but I only have to carry one kind of cable that
Speeking of which - has anyone heard / can anyone give a reference to
support- data cable can not be run through steel conduit or terminated
in steel junction boxes???
I had some Home Despot electrical supply droid telling me that
earlier this week. He claimed the signal would be reduced too much by
the power being dissipated "forming a feild around the wires that
would be short circuited by the steel box/conduit" or some similar
explanation. Said it had to be terminated in plastic box and run
through plastic conduit if it could not be simply run down the wall
space and terminated in a "drywall ring" with the data plate screwed
to it. Being he had earlier insisted I needed minuinum Cat 5, and
preferably cat6 cable to extend a Nortel Norstar phone (the whole
system was wired on initial install with single unsheilded twisted
pair Belden cable) and insisted I needed a licenced electrician to
install phone and data cabling, I called "bullshit" on this latest
information - but there are some smarter guys than me on this list so
I figured I'd ask.
Any truth to this guy's proclamation?
On Saturday, July 12, 2014 1:14:36 AM UTC-4, email@example.com wrote:
I'm sure what you choose to carry for convenience on a truck for commercial
work in Canada will be of special relevance to a guy in the USA running
Romex in his home basement. And when my first post cited the relevant code
section. Good grief.
On Sat, 12 Jul 2014 01:14:36 -0400, firstname.lastname@example.org wrote:
Not true at all.
In a previous life I was a BICSI certified data installer and 3/4" EMT
was the gold standard for running data cable.
The idea that a metal raceway is bad is ludicrous.
If you are talking about a single line POTS phone, you can run it on
bell wire, as the telcos did for decades.
He is simply confused because they sell that orange, unlisted "data"
style of ENT. It is basically the same price as regular "smurf tube"
but it is an inferior product.
You can barely trust the guys at Home Depot to know which aisle the
drywall screws are on and certainly can not be trusted on any code or
As for the license, that may be true if you are selling the service of
running low voltage wire but it can be a "limited" license, not a
regular electrical contractor's license. YMMV by state. (in the US)
On Sat, 12 Jul 2014 01:55:44 -0400, email@example.com wrote:
You have confirmed for me what I thought. The guy is a Bulshit
artist. In my 26 years in the computer and networking business I had
never heard his theory, and had successfully uses EMT and metal
junction boxes in MANY applications.
The phone system in question is not POTS. It is a fully digital
private exchange system - but still only requires single pair as it
was multichanel digital multiplex.
Our current system requires cat5 - runs on 100mb ethernet (VOIP
system) and MANY of our phone and gigabit ethernet circuits are pulled
through 1/2" and 3/4" emt and terminated in steel electrical boxes.
As for data cabling, here in Ontario licencing is not (yet) required
for voice/data/signal wiring under 48 volts. The idiot claimed
licencing was required because "ring voltage" was over 42 volts
(digital systems have no "ring voltage")
Thanks again for the (in)sanity check!!
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