0079 Adding external disconnect
Electric Pro Academy - Real skills to make real money.
Synopsis:
Disclaimer: This video is for entertainment purposes only and should not be attempted by homeowners, DIYers, or other electricians without utility permission. Doing so may result in fines in many jurisdictions.
There are 2 main reasons or advantages to having an external electrical disconnect: 1) According to the National Electrical Code (NEC), the main electrical panel of the home should be in close proximity to the entrance of the electrical utility service; however, if this is not possible, a main disconnect needs to be installed in a readily accessible place near the utility service. 2) An external disconnect enables the homeowner to cut off power to the main panel lugs, which would otherwise remain energized and dangerous even if the main breaker was turned off inside the panel. This can give greater peace of mind for future panel servicing.
In this video, Joel will safely install an external electrical disconnect in a historic home’s operational electrical system, due to a code violation identified by a modern inspector long after the installation. Within the technical instruction are recommendations and points of professionalism employed daily by Jefferson Electric masters, journeymen, & apprentices.
If the instruction in this video is unclear or skew to what you are searching for, feel free to comment below for additional assistance. Got a question or ideas for a future video? Leave a comment below and submit your idea here: https://forms.clickup.com/f/23xa9-70/MU8E4HBGPNY3NXVQA3
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Products We’d Recommend:
*EPRO endorses pro-level tools & materials, and receives a small commission for purchases through our links from Amazon & other affiliate programs. We’d be happy to recommend more cost-effective products for DIYers and low-frequency users if you engage with us in the comment section!
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National Electrical Code (NEC) referenced in this video:
Free Access Here: https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=70
[] Readily-Accessible Disconnecting Means [NEC 230.70(A)(1)]
[] Grounding Conductor Sizing [NEC Table 250.66]
Outline:
0:00 - Inspection Prep & Permits
1:46 - Reason For Disconnect Installation
2:58 - Disconnecting Power
6:37 - Disconnecting Fasteners
7:52 - Prepping New Disconnect Hardware
12:38 - Mounting New Disconnect
17:50 - Terminating Wire In New Disconnect
27:12 - Terminating Wire Between Disconnect & Meter Base
38:16 - Reinstalling Meter
39:44 - Grounding Considerations & Closing Disconnect
42:04 - Separating Grounds & Neutrals In Panel (“Secondary Means of Disconnect”)
Connect With Us:
Electric Pro Academy is a multimedia team dedicated to training and instructing DIYers and professional electricians for the growth and dignity of the craft nationwide.
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Jefferson Electric installs and services residential, commercial, solar, and Tesla systems in Indianapolis, IN.
https://www.jeffersonelectricllc.com/
https://www.facebook.com/JeffersonElectric
https://www.linkedin.com/company/jefferson-electric-llc/
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