1169∕08—2007 光伏电缆标准

 Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 1 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. 2 Pfg 1169/08.2007 Requirements for cables for use in photovoltaic-systems  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 2 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. Contents Seite Foreword.............................................................................................................................................................3 1 Scope .....................................................................................................................................................3 2 Normative references.............................................................................................................................3 3 Terms and definitions.............................................................................................................................5 4 Halogen-free PV-cable...........................................................................................................................6 4.1 Code designation ...................................................................................................................................6 4.2 Characteristics........................................................................................................................................6 4.3 Construction ...........................................................................................................................................6 4.4 Test ........................................................................................................................................................8 4.5 Guideline for use (informative) ...............................................................................................................8 4.6 Current carrying capacity .......................................................................................................................8 Annex A (normative) Test of mutual influence ................................................................................................15 Annex B (normative) Test of absence of halogen ...........................................................................................16 Annex C (normative) Determination of halogens – Elemental test .................................................................17 Annex D (normative) Test of long term resistance of insulation to D.C. .........................................................19 Annex E (normative) Cold impact test.............................................................................................................20 Annex F (normative) Dynamic penetration test ...............................................................................................21 Annex G (normative) Notch propagation.........................................................................................................23 Figure 1 – Arrangement of marking....................................................................................................................8 Figure F.1 – Arrangement for penetration test .................................................................................................22 Table 1 – Current carrying capacity of PV-cables ..............................................................................................9 Table 2 – Conversion factor for deviating temperatures ....................................................................................9 Table 3 – Tests for halogen free PV-cable.......................................................................................................10 Table 4 – Requirements for halogen free insulation and sheath compounds..................................................13 Table A.1 – Requirements................................................................................................................................15 Table B.1 – Test method, measurement, requirements...................................................................................16 Table B.2 – Test sequence...............................................................................................................................16 Table E.1 – Parameter for cold impact test ......................................................................................................20  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 3 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. Foreword This test specification contents the requirements listed in a manuscript of the working group AK 411.2.3 „Leitungen für PV-Systeme“ of the German committee for standardization (DKE). This manuscript is intended to be published as German pre-standard. Up to the date of publishing of the pre-standard this test-specification of TUV Rheinland will be used for test and assessment of cables for use in PV-systems (PV-cables). 1 Scope 2 PfG 1169/08.2007 applies to flexible single-core cables (cords) for use at the DC-side of photovoltaic- systems with a maximum permissible voltage of DC 1,8 kV (conductor/conductor, non earthed system). The cables are suitable for use in safety class II. It is permitted to connect these cables as multiple-construction. The cables are intended to operate at ambient temperature until 90°C 2 Normative references The following referenced documents are indispensable for the application 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 60364-5-52, Erection of low voltage installations –Part 5: Selection and erection of electrical equipment –Chapter 52: Wiring systems EN 50267-2-1, Common test methods for cables under fire conditions – Tests on gases evolved during combustion of materials from cables – Part 2-1: Procedures – Determination of the amount of halogen acid gas; EN 50267-2-2, Common test methods for cables under fire conditions – Tests on gases evolved during combustion of materials from cables – Part 2-2: Procedures – Determination of degree of acidity of gases for materials by measuring pH and conductivity; EN 50305, Railway applications – Railway rolling stock cables having special fire performance – Test methods EN 50395, Electrical test methods for low voltage energy cables; EN 50396, Electrical test methods for low voltage energy cables; EN 60068-2-78, Environmental testing - Part 2-78: Tests -Test Cab: Damp heat, steady state (IEC 60068- 2-78) EN 60216-1, Electrical insulating materials - Properties of thermal endurance - Part 1: Ageing procedures and evaluation of test results (IEC 60216-1); EN 60216-2, Electrical insulating materials – Thermal endurance properties – Part 2: Determination of thermal endurance properties of electrical insulating materials – Choice of test criteria (IEC 60216-2); EN 60228, Conductor of insulated cables (IEC 60228) Administrator 线条 Administrator 线条 Administrator 线条 Administrator 打字机  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 4 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. EN 60332-1-2, Tests on electric and optical fibre cables under fire conditions – Part 1-2: Test for vertical flame propagation for a single insulated wire or cable – Procedure for 1 kW pre-mixed flame; (IEC 60332-1- 2) EN 60684-2, Flexible insulating sleeving – Part 2: Methods of test (IEC 60684-2) EN 60811-1-1, Insulating and sheathing materials of electric cables – Common test methods Part 1-1: General application – Measurement of thickness and overall dimensions – Test for determining the mechanical properties (IEC 60811-1-1) EN 60811-1-2, Insulating and sheathing materials of electric and optical cables – Common test methods. Part 1-2: General application. Thermal ageing methods (IEC 60811-1-2) EN 60811-1-3, Insulating and sheathing material of electric and optical cables – Common test methods – Part 1-3: General application – Methods for determining the density – Water absorption tests – Shrinkage test (IEC 60811-1-3) EN 60811-1-4, Insulating and sheathing materials of electric and optical cables – Common test methods. Part 1-4: General application. Tests at low temperature. (IEC 60811-1-4) EN 60811-2-1, Insulating and sheathing materials of electric and optical cables – Common test methods – Part 2-1: Methods specific to elastomeric compounds – Ozone resistance, hot set and mineral oil immersion tests (IEC 60811-2-1) EN 60811-3-1, Insulating and sheathing materials of electric cables – Common test methods Part 3-1: Methods specific to PVC compounds – Pressure test at high temperature, test for resistance to cracking (IEC 60811-3-1) HD 22.13, Rubber insulated cables of rated voltages up to and including 450/750 V Part 13: Single and multicore flexible cables, insulated and sheathed with crosslinked polymer and having low emission of smoke and corrosive gases; HD 605, Power cables – Part 605: Additional test methods HD 60364-7-712 Electrical installations of buildings – Part 7-712: Requirements for special installations or locations – Solar photovoltaic (PV) power supply systems (IEC 60364-7-712, modified) Administrator 打字机  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 5 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. 3 Terms and definitions For the purposes of this document, following definitions apply. 3.1 Terms for test procedure 3.1.1 Type test (symbol T) Tests required to be made before supplying a type of cable covered by this standard on a general commercial basis, in order to demonstrate satisfactory performance characteristics to meet the intended application. These tests are of such a nature that, after they have been made, they need not be repeated, unless changes are made in the cable materials or design or manufacturing process which might change the performance characteristics. 3.1.2 sample tests (symbol S) Tests made on samples of completed cable or components taken from a completed cable, at a specified frequency, so as to verify that the finished product meets the specified requirements. 3.1.3 Routine tests (symbol R) Tests made by the manufacturer on each manufactured length of cable to check that each length meets the specified requirements 3.2 Rated voltage The rated voltage of the cable determines the construction and the tests of the cable with regard to the electrical properties. The rated voltage is designated by two values of frequency voltage: U0/U in Volt U0 rated power frequency voltage between conductor and earth (metallic screen of cable or ambient medium); U rated power frequency voltage between two conductors of a multipole cable or of a system of single core cables. The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used. This requirement is applicable for both Uo and U The rated voltage between two conductors in a DC-system shall not exceed the 1,5 time value of rated voltage U of the cable, and the rated voltage between conductor and earth shall not exceed the 1,5 time value of rated voltage Uo of the cable. NOTE The operating voltage of a system may exceed is rated voltage permanent for 20%. A cable may be operated with a voltage which value is 20% higher than rated voltage under condition that the rated voltage is not less than the rated voltage of the system. 3.3 DC side part of a PV installation from a PV cell to the DC terminals of the PV inverter  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 6 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. 3.4 open-circuit voltage under standard test conditions UOC STC voltage under standard test conditions across an unloaded (open) PV module, PV string, PV array, PV generator or on the DC side of the PV inverter 3.5 short-circuit current under standard test conditions ISC TC short-circuit current of a PV module, PV string, PV array or PV generator under standard test conditions 4 Halogen free PV-cable 4.1 Code designation PV1-F 4.2 Characteristics 4.2.1 Rated voltage AC U0/U 0,6/1 kV DC 1,8 kV (conductor-conductor, non earthed system, circuit not under load). If the cable is used in DC-systems the rated voltage between two conductors shall not exceed the 1,5 time value of rated voltage U of the cable. In with single-phase earthed DC-systems this value shall be multiplied with factor 0,5. 4.2.2 Temperature range Ambient temperature: –40 °C to +90 °C Max. temperature at conductor: 120 °C The cables are intended to operate at ambient temperature until 90°C. For this a temperature index of 120°C applies to the insulation and the sheath, bas ed on EN 60216-1 (20.000h, 50% residual elongation). Note The expected period of use is 25 years. The permitted short-circuit-temperature refer to a period of 5s is 200°C. 4.3 Construction 4.3.1 Conductor Number of conductors: 1 The conductor shall be class 5, according to EN 60228. The single wires must be tinned. Preferred diameters: 2,5, 4, 6, 10, 16 mm2 4.3.2 Separation layer A separation layer of a suitable halogen free material may be applied around the conductor. Administrator 线条 Administrator 线条 Administrator 铅笔 Administrator 打字机 额定电压 Administrator 打字机 Administrator 打字机 交流：0.6/1 kv Administrator 打字机 Administrator 打字机 直流：1.8kv Administrator 打字机 Administrator 打字机 环境温度： Administrator 打字机 导体工作温度 Administrator 打字机 Administrator 打字机 Administrator 打字机 Administrator 打字机 Administrator 打字机 Administrator 打字机 绝缘、护套温度指数120℃ Administrator 打字机 Administrator 打字机 Administrator 打字机 Administrator 打字机 Administrator 打字机 Administrator 打字机 使用寿命25年 Administrator 打字机 Administrator 打字机 5秒钟的短路温度是200℃ Administrator 打字机 导体 Administrator 打字机 Administrator 打字机 导体是EN60228中的第5类导体,而且必须是镀锡的 Administrator 打字机 Administrator 打字机 导体直径 Administrator 打字机 Administrator 打字机 隔离层 Administrator 打字机  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 7 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. 4.3.3 Insulation The insulation shall be a suitable halogen free material applied around the conductor. The insulation shall be extruded and shall consist of one or several adjacent adherent layers. It shall be solid and homogeneous, it must be possible to remove it without damage to the insulation itself, to the conductor and to the tin coating. The insulation shall be smooth, consistently applied and largely circular. Compliance shall be checked by inspection and by manual test. The wall thickness of insulation is specified by the manufacturer, but it must not fall short of the minimum value of 0,5mm. 4.3.4 Separation layer A separation layer of a suitable halogen free material may be applied around the insulation. 4.3.5 Sheath The core must be covered by a sheath. The sheath around the core must be of a suitable halogen free material. The sheath shall be extruded and shall consist of one or several adjacent adherent layers. The sheath shall be smooth and consistently applied. The wall thickness of sheath is specified by the manufacturer, but it must not fall short of the minimum value of 0,5mm. 4.3.6 Outer diameter The average value of the outer diameter shall be within the limits specified by the manufacturer. 4.3.7 Multiple construction Each single-core cable in a multiple construction shall pass the requirements of this document. Each additional component in a multiple construction shall pass the requirements of this document. 4.3.8 Marking 4.3.8.1 General The cable shall be marked as follows: a) Trademark; b) Code designation; c) Rated diameter. Marking may be by printing or by reproduction in relief on or in the sheath. 4.3.8.2 Trademark Cables shall be provided with an indication of the manufacturer, which consist of a consecutively marking with company name or company sign or with (if trademarked) an identification number. 4.3.8.3 Code designation Cables shall be provided with an code designation according to 4.1 applied consecutively on sheath. Administrator 打字机 绝缘 Administrator 打字机 Administrator 打字机 Administrator 打字机 无卤 Administrator 打字机 Administrator 打字机 护套 Administrator 打字机 Administrator 打字机 无卤 Administrator 打字机  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 8 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. 4.3.8.4 Arrangement of marking Each marking is considered as consecutive if the spacing between the end of a marking and the begin of the following identical marking does not exceed following value: – 550mm, for marking on sheath or outer jacket. Following figure shows an example of marking on sheath. Figure 1 – Arrangement of marking 4.3.8.5 Durability Printed markings shall be durable. Compliance with this requirement shall be checked by the test given in 5.1 of EN 50396. 4.3.8.6 Legibility Each marking shall be legible. 4.4 Test Compliance with the requirements of 4.3 shall be checked by visual inspection and tests according to table 3. 4.5 Guideline for use (informative) Cables according to this standard are intended for use in PV-systems according to EN 60364-7-712. 4.6 Current carrying capacity Ambient temperature: 60°C Max. temperature at conductor: 120 °C Administrator 打字机 Administrator 打字机 Administrator 打字机 载流容量 Administrator 打字机 Administrator 打字机 环境温度 Administrator 打字机 Administrator 打字机 导体最高温度 Administrator 打字机 Administrator 打字机  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 9 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. Table 1 – Current carrying capacity of PV-cables Kind of installation Rated diameter Single cable free in air Single cable on surfaces To cables adjacent on surfaces mm2 A A A 1,5 30 29 24 2,5 41 39 33 4 55 52 44 6 70 67 57 10 98 93 79 16 132 125 107 25 176 167 142 35 218 207 176 Table 2 – Conversion factor for deviating temperatures Ambient temperature Conversion factor °C Up to 60 1,00 70 0,91 80 0,82 90 0,71 100 0,58 110 0,41 Reduction factor for accumulation according to IEC 60364-5-52, Table B.52-17 Administrator 打字机  Jede Art der Vervielfältigung, auch auszugsweise, nur mit Genehmigung Seite 10 von 23 der TÜV Rheinland Product Safety GmbH, Köln, gestattet. Table 3 – Tests for halogen free PV-cable 1 2 3 4 5 Test method described in Ref. No. Test Requirements Category of test standard clause 1 Electrical tests 1.1 Resistance of conductors T,S EN 50395 5 1.2 Voltage test on completed cable with AC or DC T,S EN 50395 6 – AC-test-voltage kV – DC- test-voltage kV Length of sample m Duration of test min Temperature of the water °C 6,5 15 20 5 20 ± 5 1.3 Absence of faults at complete cable – AC-test-voltage kV 10 R EN 50395 10 1.4 Surface resistance of sheath – Minimum value Ω 109 T EN 50395 11 1.5 Insulation at complete cable Length of sample m Duration of test h Temperature of the water °C – Minimum value at 20 °C Ω ⋅ cm – Minimum value at 90 °C Ω ⋅ cm 5 2 20± 5 1014 1011 T EN 50395 8 1.6 Long term resistance of insulation to d.c. T Annex D 2 Constructional and dimensional tests 2.1 Check