McGraw-Hill encyclopedia of engineering

McGraw-Hill encyclopedia of engineering

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Wiring devices encompass the wide range of types and sizes of convenience receptacles, wall switches, cord plugs, and ... on 15- and 20-A branch circuits must be of the grounding type for compliance with the National Electrical Code.

Title:McGraw-Hill encyclopedia of engineering
Author:McGraw-Hill, inc
Publisher:McGraw-Hill Companies - 1993


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