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July/August 2001

Photo 1. Good thing there isn't a real fire!

The Electrical Inspector and Fire Alarm Systems

[ 0 ] By  |  July 15, 2001  |  IAEI July-August 2001

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 became the main topic. My captain made a statement that has stuck with me ever since: “Fire codes have been written with the blood of peoples lives!” These ten simple words [...]

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

[ 0 ] By  |  July 15, 2001  |  IAEI July-August 2001

In Canada, the Canadian Electrical Code and, in the United States, the National Electrical Code both deal extensively with grounding and bonding issues and for the same reasons—to minimize the possibilities of electrical fires and shocks. But in many instances, each code tackles the same issue in a different way, regarding use of terminology, materials [...]

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Photo 1. Concrete-encased rebar

Concrete-encased Electrodes and the Grounding Electrode System

[ 0 ] By  |  July 15, 2001  |  IAEI July-August 2001

Most buildings or structures employ a structural design that includes a concrete footing or foundation, which connects the structure to the earth. For the building to be structurally sound and stable, a substantial foundation must be established to bring the structure out of the ground. Footings and foundations are typically constructed using concrete and reinforcing [...]

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Figure 1. Figure 8.6.1.2 from UL 1598 shows where a typical protector appears electrically in an HID luminaire

Thermal Protection in Recessed Luminaires

[ 0 ] By  |  July 15, 2001  |  IAEI July-August 2001

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 the process for getting it there is involved.

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Photo 1. During UL 598 luminary tests, temperatures are measured by means of  thermocouples and suitable indicating devices.

Installation Clearance Requirements for Recessed Luminaries

[ 0 ] By  |  July 15, 2001  |  IAEI July-August 2001

National Electrical Code Article 410 Parts M and N provide special provisions for luminaires (lighting fixtures) installed within recessed cavities in walls or ceilings. Most of these code requirements focus on protecting combustible building materials from temperature greater than 90°C (194°F). To align with the Code, nationally recognized luminaire product standards have been developed that [...]

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Figure 1. Current density test probe

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

[ 0 ] By  |  July 15, 2001  |  

Section 68 of the Canadian Electrical Code, Part I, applies to electrical installations and electrical equipment in or adjacent to pools. In this section of the code, a pool is deemed to include: 1. permanently installed and storable swimming pools; 2. hydromassage bathtubs; 3. spas and hot tubs; 4. wading pools; 5. baptismal pools; and [...]

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NEC vs. NESC: Understanding the World of Code

[ 0 ] By  |  July 15, 2001  |  IAEI July-August 2001

Rob and I have been friends for many years even though we were brought up on different sides of the tracks. By different sides of the tracks I mean Rob is a National Electrical Code (NEC) inspector and I am a National Electrical Safety Code (NESC) inspector. Up until the time we met, I didn’t [...]

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Bi-national Standards for Luminaires Now in Effect


Question: Lighting fixtures What has happened to the UL 1570 series of standards covering lighting fixtures?

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