q2 week 7 lesson

q2 week 7 lesson

by EMILIO BONAOBRA

q2 week 7 lesson

Electrical Conduit Installation Tips for Homeowners & DIY Repairs

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

​Step 1: Anchor Boxes

Anchor metal boxes to the wall with screws. For exposed wiring use handy boxes, which have rounded edges and metal covers. An offset fitting allows the conduit to run tight up against the wall.

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

Step 2: Measure Conduit

Once the boxes are installed, measure the conduit for cutting. The surest method is to hold a piece in place and mark it, rather than using a tape measure. Remember that the conduit slides about an inch into each fitting.

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

​Step 3: Cut Conduit

Cut the conduit to fit with a hacksaw. Do not use a tubing cutter, which creates sharp edges inside the conduit that could damage wire insulation. Remove the burrs inside and out with a conduit-reaming attachment on a screwdriver.

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

Step 4: Slide in Conduit

​Slide the conduit all the way into a fitting and tighten the setscrew. Test to make sure the connection is tight. (If you are not installing a ground wire, these connections are critical for grounding.)

Make sure the wires have ample room inside the conduit to slide through easily. Codes have detailed rules regarding conduit size, but generally 1/2-inch conduit is large enough for five or fewer wires; 3/4-inch conduit is used for more than five wires. When in doubt or if you might run more wire in the future, buy the larger size—it doesn't cost much more.

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

Step 5: Anchor Conduit

​Anchor the conduit with a one-or two-hole strap at least every 6 feet and within 2 feet of each box. The larger the conduit, the closer the straps need to be. Check with local codes. Screws should be driven into joists or studs, not just drywall.

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

Bonus: How to Install a Pulling Elbow

​With every turn it gets harder for the wires to slide through a conduit. If the conduit makes more than three turns before entering a box, install a pulling elbow. Never make a splice here; just use it as an access point when pulling wires.

​Electrical Conduit Installation Tips for Homeowners & DIY Repairs

Advantages of using metallic conduit.

 

Most Resilient and Sustainable

Long-lasting and highly recyclable, steel conduit and EMT demonstrate the greatest resiliency and are the most sustainable raceway options.

Most Flexible and Affordable

As buildings change and expand over time, other wiring solutions have to be removed and reinstalled — but steel conduit and EMT can be reused again and again. It might cost more upfront, but steel conduit and tubing deliver significant savings over time. The cost comparison in the following graphic shows the proof.

​Thank you for listening and participating...

​THat's All for lesson number 7. Be ready for a quiz that will b posted @ google classroom