Leadership

A Fireproof Electric Wire.

Issue 17 and Volume 1893 13.

A Fireproof Electric Wire. A wire is being introduced which possesses such fire resisting qualities that the most extreme fire tests to which it has been subjected have failed to produce any visible effect upon it. At a recent demonstration several sample boards were prepared, each having arranged upon its samples of various well known electrical wires, one sample upon each board being the new wire. All the samples had the same sized conductor and were carefully wired together into a circuit, so as to allow of their being tested in comparison and under the same conditions. These sample boards represented sixteen leading makes of insulated wires, several of them being claimed by their makers to be fireproof. A powerful electric current was then applied and maintained until the conductor was first brought to a red heat, then a white heat and in some cases melted. Under this intense heat…

Subscribe to unlock this content

Subscribe Now