Method of test for resistance to fire of larger unprotected power and control cables for use in emergency circuits Ingestion-build-258901 ISO/IEC 4335 and ISO/IEC 7809)

ISO/IEC 4335 and ISO/IEC 7809)

buried and aerial cables are applicable to cables covered by this standard

• Laboratory methods

The standard covers steps and stairs outside buildings

Dielectric strength requirements for HF surgical accessories have been revised

Method of test for resistance to fire of larger unprotected power and control cables for use in emergency circuits Ingestion-build-258901 ISO/IEC 4335 and ISO/IEC 7809)1 Scope This European Standard specifies a test method for cables designed to have intrinsic resistance to fire and intended for use as emergency circuits. The standard is applicable to power and control cables for emergency circuits of rated voltage not exceeding 0,6 1 kV. The test method is intended for cables with an overall diameter exceeding 20 mm. Cables of smaller diameter shall be tested in accordance with EN 50200. The test method is based on