Calculated Demand and Underground Ampacities
by Robert Edwards
Without state-of-the-art HVAC technology, it is doubtful the unique RainForest at the Cleveland Metroparks Zoo complex could exist; and it continues to benefit from equipment improvements, such as advanced motor and drive design.
PV Wiring: Continuous Currents through Curious Cables 
by John Wiles
When inspectors see a PV power system for the first time, they will usually be faced with a type of wiring method not normally seen in residential or commercial electrical systems. That wiring method is the use of single-conductor exposed cables to connect the individual PV modules together in the PV array and is permitted by NEC 690.31.
Illegal Multi-Family Dwelling
by Bart Archibald
This article describes the sequential events that led to the discovery of an illegal occupancy, the code process that occurred and resulted in the abatement of numerous violations, the collaboration and hard work of the Stratford Building Department, Fire Department and Fire Marshals in the likely prevention of a tragedy, and the satisfaction of a job well-done.
To Build Wealth, Look at Both Sides of Balance Sheet
by Jesse Abercrombie
To achieve your financial goals, you need to be a diligent saver and investor. But you need to do more than just build your assets; you also must do a good job of managing your debts. If you let your debts get out of control, they will eventually erode your savings and investments—and when that happens, the road to financial success can get pretty bumpy.
Isolated Power Systems in Health Care Facilities
by Michael J. Johnston
Isolated power systems were primarily utilized as a protection technique to minimize the possibilities of explosions and fires in flammable anesthetizing locations in health care facilities. Isolated power systems are still utilized, but more as an optional protection technique or as required in wet procedure locations as defined in Article 517 because interruption of power by ground-fault circuit interrupters cannot be tolerated.
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