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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

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BuyFindarrow_forward

Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 3, Problem 14SQ
Textbook Problem
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What type of motor starter enclosure (include NEMA number and class) is recommended for an installation requiring safe electrical operation around an outside, inflammable paint–filling pump?

To determine

Write the type of motor starter enclosure recommended for an installation, where safe electrical operation is required around an inflammable paint-filling pump.

Explanation of Solution

Discussion:

NEMA 7, Class 1 motor starter enclosures are used in hazardous locations. The hazardous locations are places where the atmosphere contains alcohol, acetone, petroleum, gasoline, naphtha, or lacquer solvent vapors.

The NEMA 7, Class 1 motor starter enclosures are heavy machines, which contain gray iron castings...

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