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No. The 2011 version of the National Electrical Code made this very clear. National Electrical Code 2011 Chapter 7 Special Conditions Article 760 Fire Alarm Systems 760.41 NPLFA Circuit Power Source …

National Electrical Code 2014 Chapter 2 Wiring and Protection Article 210 Branch Circuits 210.70 Lighting Outlets Required. (A) Dwelling Units. (1) Habitable Rooms. …

For a 100 ampere circuit, the conductors will likely be required to be 3 AWG copper or 1 AWG aluminum. However, if you care about power quality, you're going to want to increase the size of the conduc …

In the US, a 30 ampere circuit would use 10 AWG conductors. 10 AWG is 5.261 mm². However, if you're going 90 meters (295 feet), you might have to compensate for voltage drop. You might go up to 8 AWG …

And could be confusing for anybody working on the wiring, which could lead to a potentially dangerous situation. … Always use caution when working with wiring, especially live wiring. Set the meter to measure voltage. …

There should be no problem running 3 ceiling fans on a single 15 ampere circuit, though it will depend on what else is on the circuit. Say a 52" fan is 90-100 watts (at high speed), plus three 60 wat …

There's no problem using larger conductors in a circuit, other than it might be confusing to anybody that comes along later. You'd also be wasting money, if you're buying the larger cable.

National Electrical Code 2014 Chapter 3 Wiring Methods Article 314 Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings, and Handhole Enclosures 314.16 Number of Conductors …

Your plan sounds about right, but you'll likely run into trouble fitting all the wires in the connectors. Wire connectors have a limit to the number of wires they can connect, so you'll have to be aw …

No. If you're sure it's the grounded (neutral), and there's enough slack, go ahead and use it. Just make sure you turn off the power, before cutting the wire.

If the feed only has two wires (not including ground), it's possible that it's only 120 volts (hot, neutral, ground) or 240 volts (hot, hot, ground). If there's only a single pole breaker, then it's p …

According to the National Electrical Code. You can only run communications circuits in conduit with electric power conductors, if they are separated by a permanent and listed barrier (800.133(A)(1)(d) …

The best bet is to install an inlet where you're transitioning from cord to fixed wiring. You don't want to run flexible cords through walls/ceilings, so you'll want to find a way to avoid that. … So you'll end up with something as follows: Surge protector -> male end plug -> cord -> female end -> inlet -> fixed wiring -> receptacle where projector can plug in. …

Yes. The white wire is simply there in case the device also required 120 volts. as it sounds like the device is straight 240 volts, the white wire is not needed. Cap it using a twist-on wire connecto …

Sure. Pull four appropriately sized conductors from the main panel, to the new shop panel. Install a properly sized double pole breaker in the main panel, and connect the four conductors properly …