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redsonlee · Jan 19, 2013, 07:08 PM

The same cables.

donf · Jan 19, 2013, 09:23 PM

Are you sure about the AWG of the conductors? #14 AWG conductors carry an current up to 15 amps. What is the number of this Belden cable

According to the 2008 edition of the NEC, chapter 9, you can put 11 ea. #14 AWG conductors in a Trade Size 1 emt. Which means one cable will cause a violation of the code.

This figure varies depending on the type of insulation. So we need to know the "TYPE" of conductors that are in the cable.

For example, are the conductors THHN or THWN?

stanfortyman · Jan 20, 2013, 06:12 AM

If they are typical Belden cables you can put a total of none in with any amount of #14 THHN.

donf · Jan 20, 2013, 08:41 AM

Stan,

The only Belden cables I ever installed were plenum rated, 22 AWG conductors. There were 24 conductors per cable. They were for an IBM dictating system. I never used conduit for them.

I thought the Belden cable the poster was referencing has 13, #14 AWG conductors inside the sheath. Your interpretation has the #14 AWG conductors in the conduit already.

I used the THHN / THWN types as part of my example it did not come from the OP. The OP did nor give the type of any conductors.

donf · Jan 20, 2013, 09:17 AM

Stan,

I did a search at Belden.com and found cable P/N 27091A. This cable has 13 conductors, all #14 AWG. According to the Belden "Conduit Fill Calculator". "One (1) cable will take 53% of trade size 1 EMT conduit.

No information is given about adjustment, corrections or type.

The calculator has these disclaimers:

The runs must be less than 100 ft.
No bends

donf · Jan 20, 2013, 12:35 PM

Hey guys I just figured out Belden's error.

They are treating the cable with thirteen #14 AWG conductors as one conductor and taking 53% fill instead of using the "Over Two Conductors" and a conductor fill of 40%

tkrussell · Jan 21, 2013, 05:54 AM

"Belden" cables imply low votlage, which cannot, under most situations, be in same raceway as power wiring.

This is what Stan is referring to.

donf · Jan 22, 2013, 07:03 AM

TK,

That's why I asked the OP if he was sure of the AWG of the wires inside the cable. I also checked Belden's site and found a cable with thirteen #14 AWG conductors. To me this suggests a higher than normal size conductor for low voltage.

I'll dig some more, only because I'm curious now if there is a voltage limitation on this cable that would make it a low voltage cable.

donf · Jan 22, 2013, 07:29 AM

OK -The Belden cable, "P/N 27091A" is an industrial "Tray Cable". Listed as 600 Volts or less.

It is not to be used in a residential environment. So now I'm curious whether that's the cable the OP has, although we'll probably never know.

stanfortyman · Jan 22, 2013, 11:49 AM

redsonlee, are you still alive?

redsonlee · Jan 22, 2013, 10:32 PM

Sorry I wasn't clear on my question about the belden cable. What I should have said is 6 belden cables 2 wire # 22 gauge and 12 # 14 thhn wires plus one # 16 ground in one inch emt conduit. Is this possible?

6 belden cables
12 #14 wires
1 # 16 ground

HOPE THIS IS CLEARER
REDSONLEE

tkrussell · Jan 23, 2013, 03:27 AM

What is the purpose of the Belden cables? And what is the thhn for?

stanfortyman · Jan 23, 2013, 05:01 AM

If the #14's are being used for line voltage (120/240/277/480) then it is no good.
Also, the #16 ground is no good for line voltage, it would need to be #14. I'll say that the EMT would be your actual ground, but in that case the #16 is superfluous.

redsonlee · Jan 23, 2013, 11:29 AM

# 14 wire is for control power 120 volt
Belden is for low voltage signal wire for level controllers and valves

stanfortyman · Jan 23, 2013, 02:45 PM

Then you cannot mix them in the same conduit.