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Sunday, May 28, 2017

Monthly Archives: July 2001

The Electrical Inspector and Fire Alarm Systems

Sitting around the morning coffee table waiting for shift change, a group of us discussed the previous night’s calls and the recurring false alarms...

Grounding and Bonding CEC/NEC – How Different Are They?

In Canada, the Canadian Electrical Code and, in the United States, the National Electrical Code both deal extensively with grounding and bonding issues and...

Concrete-encased Electrodes and the Grounding Electrode System

Most buildings or structures employ a structural design that includes a concrete footing or foundation, which connects the structure to the earth. For the...

Thermal Protection in Recessed Luminaires

Although not much thought is ever given to the little thermal protector that exists in today’s recessed lighting, it plays a big role and...

Installation Clearance Requirements for Recessed Luminaries

National Electrical Code Article 410 Parts M and N provide special provisions for luminaires (lighting fixtures) installed within recessed cavities in walls or ceilings....

Ask CSA: Shock Hazard Test Probe for Submersible Luminaires for Use in a Pool

Section 68 of the Canadian Electrical Code, Part I, applies to electrical installations and electrical equipment in or adjacent to pools. In this section...

NEC vs. NESC: Understanding the World of Code

Rob and I have been friends for many years even though we were brought up on different sides of the tracks. By different sides...

Bi-national Standards for Luminaires Now in Effect

Question: Lighting fixtures What has happened to the UL 1570 series of standards covering lighting fixtures?   Answer A new, bi-national standard that combines safety requirements for both...
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