Electrical Wire Heating Duct

Navigating the requirements in the national electrical code nec for ducts plenums and other air handling spaces can be difficult.

Electrical wire heating duct.

Unless your area works under a strange mechanical code that is simply not true. No utility can run through an hvac duct. Installing electrical wiring around obstacles and hvac ducting. A piece of insulation can be used to keep the wire separated from a nearby heating duct or pipe if necessary.

Hi i ve got a fully finished basement and am thinking about putting canned lighting throughout. Is it ok for plain romex wiring to come in contact with these ducts or even lay on top of them. Harlan madsen an electrical contractor in bloomington minn responds. Many times i install wiring in and on ducts that has to be there motirized dampers duct smoke detectors booster fans.

It is best to plan the path that will be used for installing the electrical wiring to avoid potential obstacles and prevent running out of wire. Most systems use a 14 awg 4 conductor stranded cable also written as. Also known as 4 conductor cable connecting cable is electrical wire that supplies power and carries control information between the indoor unit s and the outdoor unit. Typically connecting cable is run through conduit in accordance to local codes.

Air handling systems have the potential to convey smoke hot gases and flames from one area of a building into another as well as providing air supply for a potential fire. As mentioned in this question the new electrical wiring cannot penetrate the hvac duct. I have metal supply and return hvac ducts in the ceiling and i know i m going to have to get across them occasionally. Electrical wiring methods used in these areas should neither add to the fuel load of a.

Is it okay to fish electrical wiring through the wood framed chases built around hvac ducts and chimneys. We fish romex type nm nonmetallic cable through hvac duct chases all the time without any objections from our electrical inspector as long as there are no sharp edges in the chase that might physically damage. This is going to require running some new electrical cabling. Electrical wire should be kept at least 1 away from radiator piping and heating ducts.