Re: Running a wire through cold air return

Yes it’s legal. NO junction boxes in the ducts. Cold air return only. Go to Home Depot and grab yourself the Ontario Electrical Code simplified.

What is the difference between plenum and riser cable?

Many customers ask, “What is the difference between plenum rated cable & riser rated cables.” Plenum rated cables are used in plenum areas meant for use in commercial and residential spaces. Riser rated cables run between floors through cable risers or in elevator shafts in non-plenum areas.

Secondly, can you run Ethernet cable through air duct?

The problem with running cables through ducts has NOTHING to do with the longevity of the cable. A cable that is run through areas where forced air flow is supposed to occur (heating, cooling or return ducts, and some raised floors and drop ceilings) MUST BY LAW (in the US) be ‘Plenum Rated’.

Can you run electrical wire next to plumbing?

Absolutely. This is NOT an issue. You can also run wires close to the pipes that are involved. Just make sure you use some 10mil tape wrapped around the plumbing pipes where the wires either touch, or are in close proximity.

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What is plenum rated cable?

Plenum rated cable has a special insulation that has smoke and low flame characteristics. It is mandated to be installed in any “air handling” space. For instance, most large office buildings use the ceiling to return air to the AC unit.

Can Ethernet cables cause fire?

So no, your ethernet cable will not spontaneously combust if it is used properly. In an open space, Plenum-rated plastic shielding is used as a fire retardant on the cable. However, that is to protect the *spread* of a fire which would typically start elsewhere.

Can electrical wires touch ductwork?

It can’t touch hot air ducts. Cold air ducts it can touch. The reason it cannot touch hot air ducts is because the heat derates the current carrying capacity of the conductor.

Does Romex get hot?

Modern Romex (NM-B, the “B” being important) is rated to 90 degrees C, or 194 degrees F.

Is plenum cable shielded?

Plenum rated cables can help prevent the spread of fires, but keep in mind that a Plenum rated cable will have no data transmission speed benefit over a non-plenum rated cable. This cable is shielded for use in heavy electronic environments.

What is the difference between plenum and non plenum cable?

Plenum cables are run in that space (the plenum) to minimize the hazard from burning cables in a fire. Non-plenum, often called riser cables are less expensive and are used in spaces that do not intermingle with normal air circulation: attics, closed walls, conduit, etc.

How do I wire an Ethernet cable?

  1. Step 1: Strip the cable jacket about 1.5 inch down from the end.
  2. Step 2: Spread the four pairs of twisted wire apart.
  3. Step 3: Untwist the wire pairs and neatly align them in the T568B orientation.
  4. Step 4: Cut the wires as straight as possible, about 0.5 inch above the end of the jacket.
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How do I run Ethernet from downstairs to upstairs?

How to Run an Ethernet Cable From the Basement to Upstairs

  1. Measure the distance between the devices that will use the Ethernet cable.
  2. Locate an access point between floors.
  3. Drill through the floor using a ¾-inch drill bit.
  4. Mount the Ethernet cable.
  5. Thread the cable through the hole.
  6. Mount the cable to the basement walls.

Regarding this, can you run coaxial cable through cold air return?

Running RG6 wire through cold air return. Generally no, you may not run any electrical cable through a duct. For this reason ONLY cable that is rated for use in “plenums” is allowable. I’m pretty sure that they DO make plenum rated RG-6 coax but it will have a higher cost.

Simply so, can you put a light switch in a cold air return?

Switch in Cold Air Return. No. Fifteen characters. You may install wiring in a cold-air return, but you cannot use PVC cable (romex) or PVC boxes.