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Bog, hæftet Approved Explosion-Proof Coal-Cutting Equipment (Classic Reprint) af L. C. Ilsley

Approved Explosion-Proof Coal-Cutting Equipment (Classic Reprint)

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Excerpt from Approved Explosion-Proof Coal-Cutting Equipment

Direct-current motors. And alternating-current motors of the slip ring type when running usually give off electric arcs or ¿ashes that will ignite fire damp. Other motors that have no moving electric contacts may be... Læs mere

Excerpt from Approved Explosion-Proof Coal-Cutting Equipment

Direct-current motors. And alternating-current motors of the slip ring type when... Læs mere

Produktdetaljer:

Sprog:
Engelsk
ISBN-13:
9781333935177
Sideantal:
80
Udgivet:
01-10-2016
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Excerpt from Approved Explosion-Proof Coal-Cutting Equipment

Direct-current motors. And alternating-current motors of the slip ring type when running usually give off electric arcs or ¿ashes that will ignite fire damp. Other motors that have no moving electric contacts may become dangerous through accident, deterioration, or neglect. Auxiliary apparatus such as fuses, switches, rheostats, and controllers may arc, ¿ash, or become heated to such a degree that fire damp can be ignited. Such equipment is still more dangerous when worn or out of repair.

In the United States the development of apparatus for use in gaseous mines has been associated largely with coal-cutting equip ment run by electricity. This is undoubtedly due to the use of such equipment at the face of the mine workings, where the chance of igniting fire clamp is necessarily greatest. One American manu facturer built a coal-cutting equipment of the totally inclosed type for use in fire damp atmospheres in 1903. Another built similar equipment with special protective devices in 1906, for export.

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Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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