Canadian Electrical Industry News Week

Sept 12, 2019

EIN eaton UL 400Determining SCCR for Industrial Control Panels and Industrial Machinery

A short-circuit current rating (SCCR) for equipment is required by NEC® 409.110(4) and 670.3(A). SCCR represents the maximum amount of current that the assembly can safely withstand under short-circuit conditions. Additionally, the following general statement related to SCCR is included in NEC 110.10:

“The overcurrent protective devices, the total impedance, the equipment short-circuit current ratings, and other characteristics of the circuit to be protected shall be selected and coordinated to permit the circuit protective devices used to clear a fault to do so without extensive damage to the electrical equipment of the circuit.”

Understanding how the SCCR of an industrial control panel is determined and what the markings on the product signify will help ensure that the industrial control panel is adequate for the available fault current at the point of installation.

Join UL and Eaton's Bussmann division experts for a live webinar on October 30th at 10am CST as they delve further into determining SCCR for industrial control panels as per the 3rd edition of UL 508A. 

Go HERE to register

Common Misapplications of Components in Industrial Control Panels

Each component in an industrial control panel must be properly applied for safe and reliable operation. The application requirements for each component are often quite complex and unique to the component, resulting in erroneous interpretation, leading to improper use of the component. We will review some of the most common misapplications of components within the panel.

Join UL and Eaton's Bussmann division experts for a live webinar on November 20th at 2:30pm CST as they delve further into how to avoid common misapplications in industrial control panels.

Go HERE to register

Short-Circuit Current Rating Versus Arc Flash

How does arc flash relate to SCCR? 

Equipment SCCR represents the maximum amount of short-circuit (fault) current that the assembly can safely withstand under short-circuit conditions.  When the industrial control panel or industrial machinery does not have an adequate SCCR for the available short-circuit (fault) current an electrical hazard exists.

Want to learn more? Join UL and Eaton's Bussmann division experts for a live webinar on December 3rd at 10am CST as they delve further into how arc flash is different from SCCR.
 
Go HERE to register

Electrician Forum Brought to you by Schneider Electric

As industry experts you know the products you use everyday better than anyone and should have input on what information you receive about products and what could improve them.

Therefore, we want your insight on the biggest challenges or issues you face when installing loadcentres, breakers (CAFI, GFI's…) and other surge protection devices. We ask that you do not provide product specific details but rather your general issues and concerns or any questions that have come to mind while working with these product types. Provide us with your valued expert insight into the issues you have faced so manufacturers can better inform you about the installation and use of these products. Lets generate some discussion that will help guide the Industry.

Make your comments  HERE

 

SoneparSonepar Canada has announced the launch of new mobile applications for Gescan Vallen, Sesco and Lumen.

The mobile apps were officially released as of June of this year and features barcode scanning, access to pricing, product availability, store locator and much more – 24 hours a day, 7 days a week.

The new mobile app is changing the way customers can interact with the Operating Companies within Sonepar Canada. The barcode scanning functionality is a popular feature amongst customers allowing them to scan an item easily and add it to their cart.

 

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Fredericton Transmission LineNB Power recenly announced it will seek approval to build a new transmission line in the Fredericton area, which will improve the reliability of the power grid in the region for approximately 25, 000 customers.

The new proposed 15-kilometre transmission line will run from the Rainsford Substation, in Fredericton, to the Mactaquac Terminal.

“NB Power strives to offer its customer a reliable power grid that meets or exceeds all utility standards,” said NB Power’s President and CEO, Gaëtan Thomas. “This will increase transmission reliability for customers in the Fredericton region with fewer interruptions that can be restored within minutes rather than hours or days.”

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Emergency Lighting PrinciplesBy Kevin Smee, Vice President Sales at AimLite

Most of us take light for granted. It has become so ubiquitous and cheap to use that we don’t really stop to think about emergencies. Thankfully most buildings are required by law since 1974 to be equipped with emergency lighting that automatically activates during power failures to facilitate our exit.

Emergency lighting is only one component of a building’s life safety systems, but perhaps one of the most important. 

 

 

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ArcflashBy Tony Oruga

Network crews were working in an electrical room tasked to install an 800 A disconnect for a temporary service on the network secondary. The 3-spot network was energized at 480 V on the secondary (34.5 kV on the primary) and all three network protectors were closed and serving load. Each network protector installed was a 3000 A, 480 V Eaton CM52 unit equipped with an Arcflash Reduction Maintenance SystemE (ARMS). Prior to performing their work, crews enabled the ARMS function on all three units in the spot. This put all three network protectors in a “hair-trigger” mode, ready to clear any current condition that exceeded 2.5x the nameplate rating.

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