Dennis Bordeaux – JADE Learning

Making Sense of SEER – and Saving Energy Dollars!

In this blog, Gary explains SEER ratings, including the upcoming 2023 changes, as well as the overall impact of efficiency metrics on the HVACR industry.

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Multimeter Safety

Using a multimeter tool incorrectly can cause severe injury or even death. In this blog we review some common multimeter safety practices!

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How Water Quality Monitoring Protects Us

This article explains what water quality monitoring is, methods used to monitor water quality, and how the data collected is used to make decisions that affect you and the environment.

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Detecting the Weapons of War

Gunshot detection systems cannot prevent a gun from firing, but they can buy vital time to alert authorities and save lives. Read about some of the current technology behind gun detection systems in this latest blog.

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Stand-Alone Systems in the 2020 NEC – Article 710

What Changed in 2020 NEC, Article 710? Read on to learn about code changes and additions related to stand-alone power systems.

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Five Home Security System Improvements

By Mark Landis While JADE Learning offers continuing education classes on the intricacies of alarm systems, there is often opportunity to improve upon these existing systems. These improvements could be by covering some previously missed access points to the home or by adding life safety features to improve not only […]

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Fire Alarm Systems

Fire Alarm Systems By David Herres Fire alarm systems are at least an order of magnitude more challenging to understand than homeowner-type smoke alarms, even if individual smoke alarms within the home are wired together to work in concert. Fire alarm work must not be taken for granted because if […]

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Electrical Safety in the Workplace (2018 NFPA 70E)

The 2018 edition of NFPA 70E, Standard for Electrical Safety in the Workplace has been extensively revised and significant new requirements have been added.
Electricity is the most pervasive energy source present in the workplace and can present an extremely dangerous hazard to those who must work in proximity to energized conductors or energized circuit parts.

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2018 NFPA 70E Update: The Language of Electrical Safety

The 2018 edition of NFPA 70E: Standard for Electrical Safety in the Workplace contains many changes, text has been revised, some requirements have been relocated or deleted, and new material has been added. The common point of all changes is to make the standard easier for both employers and employees to understand and apply in the workplace.

For example, Section 105.3 has been revised to separate the employer and employee responsibilities into separate paragraphs. The changes make it clear that electrical safety in the workplace is the result of a partnership between employer and employee. Both must do their part.

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Feeders Part 1: What is a Feeder?

In order to understand what a feeder is, it is best to start with what a feeder is not. The conductors between the utility service point and the service disconnecting means are service conductors, not feeder conductors. Special service conductor rules apply because these conductors do not have short-circuit or […]

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Electrical Safety Never Takes A Holiday

May is designated as Electrical Safety Month and many organizations and employers take advantage of the focus on electrical safety to emphasize the importance of following safe working practices when working around energized equipment. The month of May is fast passing and the Memorial Day holiday is approaching, but we […]

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Article 90: Simple But Important Changes

When reading a book, how often do we skip past the introduction and start with the chapters that interest us? That happens to those of us that use the NEC as well, but understanding the introduction to the code in Article 90 is key to properly applying the technical requirements […]

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Feeder Conductor Ampacity

Feeders Part 3 Feeder Conductor Ampacity. The conditions of use must be considered when determining the minimum size of a feeder conductor. A continuous load, such as the lighting load in a store building, generates heat in the feeder conductor that must be compensated for. Ambient temperatures above 86oF or more than […]

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Feeders Part 2: Overcurrent Protection

The general rule in 215.3 is that a feeder overcurrent device shall have a rating not less than the noncontinuous load plus 125% of any continuous loads supplied by the feeder. Unless permitted for specific applications, such as motor circuits, the rating of the feeder overcurrent device is selected as […]

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210.23(A)(1)&(2) Permissible Loads, Multiple-Outlet Branch Circuits.

A multiple-outlet branch circuit is a branch circuit that supplies two or more outlets. With the exception of the required small appliance, laundry, and bathroom receptacle circuits in dwelling units, those outlets may be a combination of lighting outlets for luminaires, receptacle outlets for cord and plug connected utilization equipment […]

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Making Sense of SEER – and Saving Energy Dollars!

Most Recent

Multimeter Safety

How Water Quality Monitoring Protects Us

Detecting the Weapons of War

Stand-Alone Systems in the 2020 NEC – Article 710

Recently in

Five Home Security System Improvements

Fire Alarm Systems

Electrical Safety in the Workplace (2018 NFPA 70E)

2018 NFPA 70E Update: The Language of Electrical Safety

Feeders Part 1: What is a Feeder?

Electrical Safety Never Takes A Holiday

Article 90: Simple But Important Changes

Feeder Conductor Ampacity

Feeders Part 2: Overcurrent Protection

210.23(A)(1)&(2) Permissible Loads, Multiple-Outlet Branch Circuits.

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