Line and low volt in same conduit. Its OK now?

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Running signal and AC power in the same conduit will do wonders for the EMI/RFI situation! Any noise problems anywhere in the room and the A/V installer will blame this outlet wiring and he may be right. Normally it's hard to get AC power and signal to cross-talk (in part do to randomness and twist of the different wire pairs). But this is just to close and too orderly.
 
Simtra

Simtra

I have been using Simtra cable for more than 2 years now, mainly in computer classrooms. The installation is very simple and the savings are about 30% in labor and material. If you want to see how it works, go to youtube and type simtra cable.
 
How Simtra Cable works

How Simtra Cable works

I am a "PE" Engineer that specifies this cable. I have been using this cable in schools, office buildings, marinas, seaquarium, bridges, etc., here in south Florida.

The Simtra Cable is a UL listed and labeled nonmetallic sheathed cable factory assembly of (2), (3), or (4) conductors with a green insulated conductor used for grounding equipment. This Cable has all their conductors twisted to create a round shape cable. These conductors are stranded (19 strands) annealed copper with dual rated moisture heat resistant thermoplastic insulation rated at 600V. Type THHN/THWN with nylon coating for 90 degree C. in dry, 75 degree C. in damp and wet location. The Simtra Cable has a "patented", permanent ferrite-barrier that surrounds all conductors to virtually eliminate electromagnetic waves (field), electrical transients interference and/or disturbances impose on, or emanating from the current carrying conductors.

The ferrite has the following characteristics:

Ferrites are oxides and ceramic material (electrical insulator)
Immune to fire, humidity, and chemicals
Non-Conducting
No need for ground
Can be formed into a variety of different geometric shapes
Ferrites become ceramic when expose to high temperatures
Ferrites has the quality of absorbing explosion such as short circuit
The Simtra Cable will not induce electrical current (eddy current) and does not produce hysteresis heating to the surrounding metal enclosure (conduit or armored), creating a cool ambient inside the enclosure. The Simtra Cable includes an orange nonmetallic moisture-resistant, flame retardant "PVC" jacket that is 20 mils minimum thick and is listed as being resistant to the spread of fire (UL-1685-2000) and is rated for 600V for continuous operating temperatures of 90 degree C. and may be in conduit, nonmetallic cable or metal armored. The Simtra Cable conductors are surrounded by 20 mils of minimum ferrite material, plus 20 mils minimum of the outside orange pvc jacket; therefore between the power conductors and Data/Voice/Video cables, there will be around "40 mils" of minimum separation.
 
Simtra Cable

Simtra Cable

Russ,
The Simtra Cable has there conductors surrounded by 20 mils minimum of ferrite material (patented), plus 20 mils minimum of flame retardant "PVC" orange jacket. Therefore, between the power conductors and Data/Voice/Video/Low voltage control cables, there will be around "40 mils" of minimum permanent barrier.
The Simtra Cable comply with 725-136-B and also with 725.136.I(1). the Simtra is a non-metallic sheathed cable and 725-136.I(2), the Simtra has a continuous and firmly fixed noncunductor ferrite tube (the ferrite is oxides and ceramic material, electrical insulator), that is flexible and requires no grounding.
 
These particular power conductors happen to be 14 AWG THHN. The outer jacket is actually orange and under the jacket is a ploymeric barrier that absorbs the EMI from the THHN conductors. SIMTRA cables are currently available in gauge sizes up to 2 AWG and up to 50 conductors with a variety of color codes for both power, control and HVAC applications.
 
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