Full PDF Catalogs
<< Previous Page
to open this page in a new window.
Next Page >>
ELECTRICAL CHARACTERISTICS Conductive Hose Non-Conductive Hose Conductive hose constructions are those that are capable Non-conductive hose constructions are those that resist of conducting an electrical current. the flow of electrical current. Static wires and conductive rubber components are used in In some specific applications, especially around high voltage hose to prevent static electricity build-up and a discharge as electrical lines, it is imperative for safety that the hose be a spark. Electrical engineers differ in opinion on the effects of non-conductive. Unless the hose is designed particularly to static electricity and the means of dissipating it. In handling be non-conductive and is so branded, one dare not conclude gasoline and other petroleum-based liquids, recognized that it is non-conductive. Many black rubber compounds are national associations and companies have conflicting inherently and inadvertently conductive. Non-conductive hose opinions on the need for conductive hoses. is usually made to a qualifying standard that requires it to be tested to verify the desired electrical properties. The hose is Until a consensus is reached among all associations, labora- usually non-black in color and clearly branded to indicate it is tories and users, and a standard practice is established, it is designed for non-conductive applications. essential that the user determine the need for static bonded hose based on (a) the intended use of the hose, (b) instruc- UNLESS A HOSE IS DESCRIBED SPECIFICALLY AND tions from the company's Safety Division, (c) the insurer, and CLEARLY BRANDED TO BE CONDUCTING OR (d) the laws of the States in which the hose will be used. NON-CONDUCTING, IT MUST BE ASSUMED THAT THE ELECTRICAL PROPERTIES ARE UNCONTROLLED. Some types of hose include a body reinforcing wire. This wire can be used for electrical continuity provided that proper contact is made between it and the hose coupling. In non- wire reinforced hose, a static wire can be included in the hose body. Reprinted from The Rubber Manufacturers Association, Inc. Hose Handbook, © IP-2, Seventh Edition, 2003 86