Modern Lightning Conductors; An Illustrated Supplement to the Report of the Lightning Research Committee of 1905, with Notes as to the Methods of Protection & Specifications

Modern Lightning Conductors; An Illustrated Supplement to the Report of the Lightning Research Committee of 1905, with Notes as to the Methods of Protection & Specifications

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 edition. Excerpt: ...authorities both in Austria and Hungary have had all magazines of explosives protected in this manner. "Special care is taken, in setting up these cage conductors, to avoid the sharp curves arising from a sudden change in the direction of the earth, conductors, so as to reduce as far as possible the self-induction of the earth connection. "Importance is likewise attached to good earths, but experience shows that if the cage arrangement is well carried out and the number of cage wires not too scanty, even without a very good earth connection the conductor still works satisfactorily. "At present both the cage and the Franklin collecting point system are in use with us; but of late years, especially for agricultural objects, the cage system is coming more and more in vogue, and probably in a short time all the new conductors will be of this kind." BELGIUM. The Hotel de Ville at Brussels has been often quoted as the most perfectly and elaborately protected building in the world; however, it was struck in 1888 and set on fire, not because the conductors failed to carry off the stroke which fell on the building, but owing to the neglect or oversight of leaving a horizontal bar of metal totally unconnected with anything. This bar according to Sir Oliver Lodge did not even receive a side flash, yet the induced surgings set up on it were so violent as to ignite some gas and cause a small fire. The Melsen system, which is largely adopted in Belgium, consists of a network of metal rods connected together at the top and furnished with an aigrette or bundle of eight 4 mm. copper rods spread out like a feather, so that the terminal points project so little above the horizontal conductor which runs along the roof that they can hardly be seen...show more

Product details

  • Paperback | 44 pages
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236549767
  • 9781236549761