How to Install an Electric Sub Panel and Tie-In to Adjacent Main Panel from Start to Finish

🔴 Siemens Load Center P2020B1100CU - http://amzn.to/2r7vRVb

Please use these quick jump points to skip ahead.
2:26 Mounting of panel
3:40 Mounting of romex connectors to secure 2-0 wire
4:51 Installation of Wire
7:03 Landing of wire in Sub-Panel
10:57 Installation of 100Amp double pole breaker in main panel to receive 2-0 wire that feeds sub-panel
13:10 Cleanup of main panel wiring
14:57 Replacement of 20Amp standard breaker with combination AFCI/GFCI breaker
16:29 Testing of the breakers within panel after cleanup of wiring
17:40 Preparation of landing 2-0 wire in main panel
19:17 Application of anti-oxidation compound to aluminum wiring and landing wiring to ground and neutral bus bars.
23:47 Application of anti-oxidation compound to aluminum wiring and landing wiring to breaker

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Parts List Used:
Siemens 2-pole 100Amp standard breaker Q2100P
14 feet 2-0 gauge 4-Wire
4x8 Sheet of 7/16" thick OSB (oriented strand board)
Anti-Oxidation Compound - http://amzn.to/2qHx45A
Wire nuts (if connecting wires within panel)
Siemens PL Series 100Amp Load Center P2020B1100CU - http://amzn.to/2r7vRVb
Siemens AFCI/GFCI Dual Function 20 Amp Breaker Q120DFP - http://amzn.to/2pN0zOx

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Please consult a licensed electrician before you attempt any of this on your own if you do not have detailed knowledge of electricity. An improper installation could result in ineffective GFI protection, shock, electrocution or fire. Please follow all safety precautions when working with electricity. If you are not comfortable performing this work then please hire or consult a licensed electrician. This is not something that you can take an approach where you'll just wing it. A slight misstep could result in shock or electrocution. But don't consider the only hazard the electricity. Your work area could be equally as dangerous. Observe all reasonable safety precautions from every level from standing on a ladder to installing the panel to landing the wires. Even improperly handling a knife or wire cutters could result in injury.

Installation of the sub panel requires two adjacent (top/bottom or side/side depending upon your panel configuration) breakers to be free for a 2 pole breaker to be installed which will be used to feed the sub-panel. If you do not have two adjacent slots free but you do have two slots free it may be possible to move breakers around to meet the requirement.

Please note that 4 wire is required to connect a sub-panel to a main panel. The 4 wire consists of 2 hots (one for each phase), a neutral and an earth ground wire. You'll see in my video that I connect the earth ground wire to the ground bar within the sub panel and I connect to the neutral to the neutral bar within the sub panel. This means that the neutral and the ground bars are floating from one another to avoid ground loops. If you are using aluminum wire please be sure to properly coat the bare aluminum with anti-oxidation compound. If you fail to do this then this could become a hot-spot over time and could potentially cause a fire.

Please ensure proper electrical bonding by torquing all setscrews and lugs down to the proper torque. Proper electrical bonding helps to ensure good flow of electricity with negligible resistance impeding the flow.

Please follow your local and stand ordinances and electric and building codes when installing a sub panel. Consult the latest National Electric Code guidebook and read the relevant sections. The NEC book is contains a standard for wiring in residential, commercial and industrial applications. Follow the appropriate section and take all codes seriously. These were created for safe operation and maintenance of your electrical distribution system.

This demonstrations shows half-way through that it would be nearly impossible to tie-in the sub-panel with the bundle of wires that occupied the right half of the panel. It was necessary to short all wires and reroute them for better layout to avoid any obstructions to the 2-0 wire that needed to be landed in a 2 pole 100 Amp breaker. Skip ahead of this section if it does not apply to your panel setup.

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Видео How to Install an Electric Sub Panel and Tie-In to Adjacent Main Panel from Start to Finish канала U Do It