Service
- 1st Century service in a 19th Century landmark Featuring Michigan Industrial Controls, Port Huron, Michigan, readers learn how Thomas Edison's boyhood town has become a home to solid-state electronics service. Technicians at MIC have been servicing uninterruptible power supply systems since 1986. The company offers a range of services, from minor repairs to complete new system design and turnkey start ups. This editorial feature will be of special interest to EA readers who work with repairs or upgrading of a-c and d-c electronic drive systems in industrial machinery By Richard L. Nailen,
P.E., EA Engineering Editor
Associations,
Conventions &
Trade Shows - Service increasingly mechanical and on-site
The August EA includes our post EASA show report from the Nashville convention, which stressed non conventional, emerging sources of revenue and ways to improve customer service and profitability. Our extensive coverage includes exhibit floor photos, first-hand seminar reports, comments from attendees, and special insights from Engineering Editor Richard L. Nailen.
Insulation - Choosing the right insulation test : Why the type of test employed depends on the use to which the insulation will be put. Maintenance electricians, troubleshooters, engineers, or service center personnel who need to diagnose the insulation condition of large rotating machines will learn much from this technical article. Evaluating the integrity of a motor or generator insulation system requires several different tests. The effects of moisture or chemical contamination; the quality of an impregnation process; and the presence of air voids within the insulation wall must all be accounted for. Whereas insulation resistance testing alone is sufficient for many windings, testing the power factor of insulation is useful at the higher voltages when voids may be the principal defect rather than moisture or contamination.
(Read an online summary)
Safety and Health - Welders require protection from head to toe: Every job needs complete protective equipment.
By Richard B. Elsberry, EA Contributing Editor
EA reader at ease Lust for Life: Glen Brown, general manager at Shenandoah Apparatus Service in Newnan, Georgia, loves to dance.
By Joseph S. Hoff, EA Special Features Editor
New Books Recently published books, reviewed by our editors. In this issue -
Rating of Electric Power Cables in Unfavorable Thermal Environment, by G. J. Anders, John Wiley & Sons, Inc. In this book, Dr. Anders gives electrical system engineers some tools to forestall overheating of transmission and distribution circuits at 100 to 400 kV. Reviewed by RLN.
Deaths - Frederrick McBroom, co-founder of the Service Electric Co in Indianapolis which became the current family-owned McBroom Electric Co.

Advertising for the March Electrical Apparatus closes February 15. Classified ads close February 20. (Space is sometimes available after the closing date - call 312-321-9440.)