IEC 60502-4:2005

Specifies the test requirements for type testing of accessories for power cables with rated voltages from 3,6/6 (7,2) kV up to 18/30 (36) kV, complying with IEC 60502-2.Accessories for special applications, such as aerial cables, submarine or ship cables or hazardous situations (explosive environments, fire resistant cables or seismic conditions), are not included.Formerly, approvals of products now covered by this IEC standard have been achieved on the basis of national standards and specifications and/or the demonstration of satisfactory service performance. The publication of this IEC standard does not invalidate existing approvals. However, products approved according to these earlier standards or specifications cannot claim approval to this IEC standard unless specifically tested to it.It is not necessary to repeat these tests, once successfully completed, unless changes are made in the materials, design or manufacturing process which might affect the performance characteristics.Test methods are included in IEC 61442.Significant technical changes with respect to the previous edition are as follows:a) the scope clarifies the validation of former product approvals;b) definitions have been given for tracking, erosion and metallic housing, and substantial damage has been more detailed;c) the range of approval has been revised; d) test sequences have been simplified by removing initial heating cycles;e) additional information has been provided for testing separable connectors with a metallic housing; f) an examination has been added to all test sequences for information only.