A small multifamily dwelling service change uses some innovative construction techniques, some of which could be used in industrial applications.In addition to some unusual design requirements covered in the last issue, the service change involved...
Effective selection, application, operation, and maintenance of modern motors require a strong working knowledge of rotating-machine basics as well as an in-depth awareness of the latest technical developments.Modern motor application designs have...
Here are key data that you need to properly select, install, and maintain hazardous-area motors.Hazardous areas motors are those motors designed with specific characteristics so that they'll operate safely in a definitive hazardous environment. In...
Effective selection and application of modern gensets require a strong knowledge of generator basics as well as an in-depth awareness of fuel sources and NEC requirements.Engine-generator sets now have countless applications, often with multiple...
A small multifamily dwelling service change reveals interesting Code applications.One of the best features of the electrical trade is that every day, problems need to be solved that aren't quite the same as the ones we solved yesterday. Changing...
Selecting and applying wiring devices.Receptacles, switches, plates, and cord connector bodies are available in a wide range of sizes, ratings, and styles with specific features and characteristics to meet most design/application requirements...
The new Art. 695 makes it effectively impossible to install electric fire pumps in the majority of large-sized campus and industrial occupancies.One of the principal objectives of the Code is the prevention of fire due to electrical causes. In the...
Analysis of Design E motor characteristics reveals surprising properties that may have a significant impact on your choice of "energy-efficient" motors.In response to demands for increased energy efficiency, NEMA has issued specifications for a...
Premium-efficiency motors replace old, poorly rewound standard motors, resulting in noteworthy savings while operating on a single shift.Contrary to popular belief, two premium-efficiency (PE) motors are reducing electric operating costs by...
These application tips and suggestions will help extend motor life in these hostile environments.If you have a motor application that involves operation in a wet or damp environment, you should know the proper choice of motor enclosure, the...
