[Trade Journal]
Publication: The Journal of Electricity, Power and Gas
San Francisco, CA, United States
vol. 28, no. 11, p. 247, col. 1
A SEA WEED INSULATOR
In connection with the recentt endeavors to use the kelps of the Pacific Coast as a source for potash it is of interest to note that an insulating material made from ordinary seaweed has been produced by an English chemist, Mr. John S. Campbell. Recent tests carried out at the Westminster Electrical Testing Laboratores are said to have proved it to possess all the ordinary merits of an insulator besides having an unusually high resistance. Immersed in water the test showed a resistance of 30,000,000 megohm-centimeters. Samples 1 mm thick withstood from 9000 volts to 16,000 volts alternating current before being punctured.
