Electrical engineering theory and practice

Electrical engineering theory and practice

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a comprehensive, practical and authoritative treatise for those engaged in the electrical industry Philip Kemp ... In house lighting installations these two-way switches find their chief use when a means has to be provided for switching the same lamp on or off ... The left-hand two-way switch in this diagram replaces the original single-way switch and both the red feed and the switch-wire are connected to it.

Title:Electrical engineering theory and practice
Author:Philip Kemp
Publisher: - 1951


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