Article 760 Fire Alarm Systems

This article was posted 01/19/2010 and is most likely outdated.

Topic - NEC
Subject - Article 760 Fire Alarm Systems

January 19, 2010
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Article 760 – Fire Alarm Systems

We at Mike Holt Enterprises try to provide as much as we can to the industry at no charge. For this reason we’ve created a free Fire Alarm Systems booklet.

The material in this booklet was extracted from Mike's Understanding the 2008 NEC, Volume 2 textbook.

Click here or on the image to download the pdf file. Please note that the file is 1.85MB and may take a few minutes to download depending on your internet connection speed. If you encounter a problem opening this file, be sure you have the latest version of Adobe Acrobat installed on your system (click here).

To purchase your copy of Mike Holt’s Illustrated Guide to Understanding the National Electrical Code Volume 2, 2008 Edition, please click here or call our office at 888.NEC.CODE(632.2633) for more information.

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Comments

Greeting, I have faced one problem with voltage drop calculation in feeder. In NEC-2008 it is not clear the voltage drop for feeder. NEC states that " voltage drop for branch is should not exceed 3% and the total voltage drop for branch plus feeder is 5%". In large distribution projects, I am really confused because the voltage drop for branch can never exceed of 2% for dwelling unit and now for feeder can I take 3% which makes the total 5%. It has really great impact on cable sizing for large distribution as well as economics. So, Can any body help me in this issue.

Hameedullah Ekhlas

Reply from: Mike Holt
Questions not related to the Newsletter should be posted on the Questions Forum at www.MikeHolt.com. I suggest the Engineering Section.

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