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10 10 IEC 63026:2019 IEC 2019 SUBMARINE POWER CABLES WITH EXTRUDED INSULATION AND THEIR ACCESSORIES FOR RATED VOLTAGES FROM 6 kv (U m = 7,2 kv) UP TO 60 kv (U m = 72,5 kv) TEST METHODS AND REQUIREMENTS 1 Scope This document specifies test methods and requirements for power cable systems, cables with extruded insulation and their accessories for fixed submarine installations, for rated voltages from 6 kv (U m = 7,2 kv) up to 60 kv (U m = 72,5 kv). This document includes the electrical tests and the physical tests on materials and components as well as the specific mechanical tests that are applicable to submarine cable systems. The requirements apply to armoured single-core cables and three-core cables in combination with their accessories, terminations and joints for usual conditions of installation and operation, but not to special cables and their accessories, such as submarine cables for dynamic applications (i.e. for direct connection to a floating structure), for which modifications to the standard tests can be necessary or special test conditions be devised. This document is applicable to submarine cables installed in permanently submerged conditions with water depths up to 250 m. NOTE This document does not include accessories having a mechanical function only, such as hang-offs or armour clamps. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60228, Conductors of insulated cables IEC 60229:2007, Electric cables Tests on extruded oversheaths with a special protective function IEC 60230, Impulse tests on cables and their accessories IEC :2006, Electric cables Calculation of the current rating Part 1-1: Current rating equations (100 % load factor) and calculation of losses General IEC :2014, Power cables with extruded insulation and their accessories for rated voltages from 1 kv (U m = 1,2 kv) up to 30 kv (U m = 36 kv) Part 2: Cables for rated voltages from 6 kv (U m = 7,2 kv) up to 30 kv (U m = 36 kv) IEC , Power cables with extruded insulation and their accessories for rated voltages from 1 kv (U m = 1,2 kv) up to 30 kv (U m = 36 kv) Part 4: Test requirements on accessories for cables with rated voltages from 6 kv (U m = 7,2 kv) up to 30 kv (U m = 36 kv) 2b1af7f3a8