[PDF] Permissible Explosion Proof Electric Motors For Mine Conditions And Requirements For Test And Approval Classic Reprint eBook

Author : H. H. Clark
Publisher : Forgotten Books
Page : 22 pages
File Size : 31,11 MB
Release : 2018-02-09
Category : Technology & Engineering
ISBN : 9780656158256

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Excerpt from Permissible Explosion-Proof Electric Motors for Mine: Conditions and Requirements for Test and Approval The Bureau of Mines has applied the term explosion proof to motors constructed so as to prevent the ignition of gas surrounding the motor by any sparks, flashes, or explosions of gas or of gas and coal dust that may occur within the motor casing. About the Publisher 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.

Author : H. H. Clark
Publisher : Forgotten Books
Page : 64 pages
File Size : 20,33 MB
Release : 2016-10-08
Category : Technology & Engineering
ISBN : 9781333884086

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Excerpt from An Investigation of Explosion-Proof Motors For the sake of simplicity, in this report the means used to cool incandescent gases are termed protective devices whether they consist of valves, layers of gauze, or metal plates. About the Publisher 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.

Author : L. C. Ilsley
Publisher : Forgotten Books
Page : 30 pages
File Size : 48,69 MB
Release : 2018-02-10
Category : Technology & Engineering
ISBN : 9780484185202

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Excerpt from Operation and Maintenance of Electrical Equipment Approved for Permissibility by the Bureau of Mines Briefly, a permissible schedule of the Bureau of Mines establishes certain minimum standards for safety; it gives details of test methods adopted to determine whether these standards have been met, and a list of charges for such tests. Any manufacturer has the privilege of submitting his product for test in accordance with the conditions outlined in the schedules. His action is wholly voluntary, for the Federal Government has no jurisdiction as to what equipment shall be used in mines, this authority being left to the various States. When the product of a manufacturer has met the schedule requirements, he is permit ted to advertise this fact and to attach an approval plate with the bureau's seal to each machine he makes that is identical in every way with the equipment tested, inspected, and approved by the bureau. About the Publisher 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.