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Hi Folks: I bought a new subpanel for the electrician to install in my shop. Asked the local electrical supply store for a Square D panel, main lug and didn't think twice about it. I left it at the shop for the electrician to install. My plan was to take most of the circuits out of the top of...

Hi Folks: I am running a 220 circuit to my compressor. I thought I read it was okay to use one of the legs to run an associated 110 circuit for the auto drain but couldn't find a post. Am I correct or all washed up? If okay, what size wire do I use for the 20 amp outlet? 12 gauge or the same...

Hi folks: I have three of these used switches in good shape. They were originally installed to shut off power to subpanels. My question is whether I could use one as a disconnect switch for a 7.5 hp 220v single phase air compressor. Pictures attached. Thanks for any input. Daniel

Hi Folks: I am installing Sylvania strip 2a led lights (4 foot and 8 foot) in my shop. I am using luminary cable and Lutron Powpak dimmer/controllers. I am using small junction boxes attached to the light fixture to splice the low voltage wires separately outside of the fixture. My question is...

Hi Folks: I am using luminary cable to wire my led lights with lutron Powpaks. It looks like standard MC cable connectors won't work (extra wires won't fit through restricted opening). What is everyone using in this case? Special connectors? NM cable connectors? Thanks for any suggestions, Daniel

Hi Folks: I have a 100 amp subpanel in a block wall room with open ceiling and steel joists. Getting ready to run some circuits. I think I will use MC cable up in the joists for ease and convenience (running to lights, garage opener, etc). Wondering about short emt runs out of top of subpanel to...

Hi Folks: I would like to seal a horizontal seam along a block wall where it meets a brick apron. Moisture is seeping in this crack and causing some damage inside. The original sealant is mostly gone. What suggestions does this experienced crowd offer? Presumably some sort of caulk or other...

Hi folks: Getting ready to lay out a few lighting circuits. 96 watt dimmable LED lights (I can provide more info if needed). In one bay, there will be three lights. A roughly 40 foot straight run from the subpanel along the wall with three 10 foot legs (one to each light). I was assuming I would...

Hi - I purchased an older (about 80 years old) two story building a few months ago. It is rectangular, two story with flat roof and has steel joists. I want to install an exhaust fan in a downstairs shower room and need to run the vent pipe through an exterior wall. I was looking for a spot to...

Hi folks: I recently bought a decades old commercial building to use as shop space. The ceiling is open and the construction includes steel joists. The existing subpanels are pushmatic fed by three wire SER cable threaded through the joists. The main service panel was upgraded to a Square D 200...

Hi folks: I just bought an old commercial building to use as shop space. Essentially two garage bays, concrete floor, cinder block walls, side by side. One has a ceiling mounted vented natural gas heater. The other space has a wall mount ventless natural gas heater. Will the vented heater...

Hi guys: An electrician ran a 50 amp 220 circuit for my welder (Hobart 230) ending with a 6-50 three wire plug. I decided to run a second similar circuit to run my Dynasty 210 so I can have them both plugged in at the time. I opened the surface mount metal 4 x 4 x 2 box of the original...

Hi guys: I am building a weight lifting power rack similar to this one (http://www.fitnessdestination.com/power_racks/df4500.php). I am using 2 x 2 and 2 x 3 inch 1/8" thick tubing. Any time if have welded a frame using tubing, I have reinforced corners with mitered sections of the same...

Hi guys: We are thinking about build a weight lifting rack similar to this one: (http://www.roguefitness.com/rogue-r-3-power-rack). I have 2 x 3" steel tubing, 1/8" wall. Our plan is to drill 1 1/8" holes across the narrow/2" face (through both narrow sides). Spacing would be two inches on...

Guys - I currently have one 220v outlet (from 200 amp box in shop) on a single circuit. I use it for my welder and belt grinder, but am tired of plugging and unplugging when I change in the middle of project. Any advice for adding a small group of 220 outlets? Neat, safe and work efficient. Run...

I have an Ingersoll-Rand T30 air compressor in my shop. I bought it used a few years ago and have had no problems. Recently, it gets up to around 175 psi and rather than shutting off, the motor keeps running and it starts venting air from the fitting just behind the pressure switch. This is...

I have been casually watching local ads for a used TIG welder to use for hobby projects in my shop. The following listing showed up. Any input as to whether this is something I should even consider? HOBART Cyber-Tig welder, 100 Series, 300A, 230/460 Volt, single phase, W. Lincoln feeder, no...

I have a new 200 amp service panel in my shop. I am using 3/4" emt to run power throughout the shop. Question - can I run more than one circuit out of the box through one knockout hole, divided into separate conduit runs outside the box. E.g. six wires (two each of black, white, green) from two...

I am using four bulb (4') T5 HO light fixtures from Lithonia (IBZ454) in my shop. 16 fixtures arranged in 8 pairs. I was planning on switching them in pairs to avoid turning them all on at once If I don't need a lot of light. Prepping for some garage time over the holidays, I opened the back of...

I am going to run metal conduit (currently using 3/4" EMT, but could go larger for this if needed) to hook up my air compressor using 6 gauge THHN 240v. I want to run 120v to the compressor automatic drain using 12 gauge THHN. Can I run both circuits in the same conduit? I have found charts...