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IAEI Magazine | Author: Lanny McMahill
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Lanny McMahill

Lanny McMahill was international president of IAEI in 2004. He is a member of IAEI Central Arizona Chapter where he has served a chairperson, executive board member, education program director and IAEI Southwestern Section representative. He represents IAEI as a principal member of CMP-1, and is a member of UL Electrical Council, U.S. National Committee of the IEC, IBEW, Arizona Electric League and Phoenix Metro Tech Vocational Advisory Board.


Electrical Plan Review – Is It Worth the Time and Effort?

At one time or another most electrical plan reviewers have probably asked the question, "Is it worth the time and effort?” Electrical plan review reminds me of a television commercial years ago about cleaning and polishing the silverware—it’s tedious and time consuming! Naturally, no one enjoys doing repetitive and tiresome tasks, as they tend to wear on one’s mind and mood. Everyone, however, enjoys doing exciting and stimulating tasks, as they tend to invigorate one’s mind and mood. Although electrical plan review tasks may be tedious and time consuming, they can also be interesting and enjoyable if approached from the right angle. Sometimes finding the right angle is simply a matter of making a few minor adjustments in how we do things.

It’s time to pass the gavel!

A final correspondence is a bittersweet event. My term as international president will officially end in November. Along with the gavel, I will be passing the presidential duties and responsibilities on to Gaylen Rogers. Gaylen will do a fine job of leading and representing the IAEI!

Focus on the Code

Breakers not listed on panelboard data sheet

First, it is understandable that for older panelboards it is difficult to find new or replacement circuit breakers. Typically, the panelboard may be obsolete, the manufacturer may be out of business or perhaps purchased by another manufacturer. In addition, electrical equipment design and manufacturing technologies change. As a result, the equipment is not produced or there is little demand for such equipment.

Exhaust Fans on Pitched Roofs

As you have noted, there is nothing in the National Electrical Code to preclude the installation of an exhaust fan on a roof — this is regardless of the roof being flat or pitched. Realistically, installing an exhaust fan on a roof is no different than if it were installed up high in an exterior building wall or down low in an underground vault.

Does equipment need a second UL listing once it has been incorporated into final product?

First, the National Electrical Code defines approved as "acceptable to the authority having jurisdiction (AHJ).” Therefore, electrical products, equipment and installation approvals are the responsibility of the AHJ. See NEC Article 100 definition of approved and NEC 10.2 for approval requirements.

When is an electrical vault required?

It is difficult to give a concrete response to "When is an electrical vault required,” as the use of a vault could be a design consideration or a mandatory Code requirement. There are conditions and other criteria that must be considered.