About Harboro Rubber Engineering in Rubber      Contents      Introduction      Uses of Rubber      Processing Rubber      Designing With Rubber      Selecting / Specifying Rubber      Quality In Rubber      Rubber Directory      Health & Safety      Measuring Properties          Measuring Properties          Measuring Hardness          Tensile Strength          Elongation          Modulus          Compression Set          Permanent Set (Tensile Set)          Density (Specific Gravity)          Resilience          Chemical Resistance          Fluid Resistance          Weather Resistance          Ozone Resistance          Electrical Properties          Tear Strength          Abrasion Resistance          Electric Strength          Flame Resistance          Low Temperature          Staining          Accelerated Ageing      Glossary of Terms      Request A Copy Contact Information

Electric Strength   Property: Electric Strength Method of Measurement: Electric strength is measured by placing a disc of rubber of known thickness between two electrodes and increasing the voltage gradually or stepwise until electrical breakdown occurs. It is expressed in Volts per unit thickness (e.g. KV per mm or V per 0.001"). ASTM REFERENCE: D149 BS REFERENCE: BS903 Part C2 BS903 Part C4 * technically equivalent ** identical