EN 50618-2014 光伏系统用电缆

Introduction

This standard specifies cables for use in Photovoltaic (PV) Systems, in particular for installation at the DirectCurrent (d.c.) side. These cables are suitable for permanent outdoor use for many years under variabledemanding climate conditions. Relatively stringent requirements are set for these products in line with theexpected harsh usage conditions

During the writing of this standard the joint work of TC 64 (Electrical installations and protection againstelectric shock) and TC 82 (Solar Photovoltaic Energy Systems) on the design and installation of PV systemshas been taken into account.

Scope

This European Standard applies to low smoke halogen-free, flexible, single-core power cables with crosslinked insulation and sheath. in particular for use at the direct current (d.c.) side of photovoltaic systems, witha nominal d.c. voltage of 1,5 kV between conductors and between conductor and earth.

The cables are suitable to be used with Class ll equipment.

The cables are designed to operate at a normal maximum conductor temperature of 90 °C, but for a maximumof 20 000 hours a max. conductor temperature of 120 'C at a max. ambient temperature of 90 'C is permitted.

NOTE The expected period of use under normal usage conditions as specified in this standard is at least 25 years

2Normative references

The following documents, in whole or in part, are normatively referenced in this document and areindispensable for its application. For dated references, only the edition cited applies. For undated referencesthe latest edition of the referenced document (including any amendments) applies.

EN 50289-4-17, Communicaion cables - Specifications for test methods - Part 4-17: Test methods for Uvresistance evaluation ofthe sheath of electrical and optical fibre cable

EN 50395:2005, Electrical test methods for low voltage energy cables

EN 50396:2005, Non electrical test methods for low voltage energy cables

EN 50525-1:2011,Electric cables - Low voltage energy cables of rated volages up to and including4501750 V(U√U)-Part 1: General requirements

EN 50565-1:2014,Electric cables-Guide to use for cables with a rated voltage not exceeding4501750 V(UyU)- Part 1: General guidance

EN 60068-2-78, Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state (lEC 60068-278)

EN 60216-1, Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures andevaluation oftest results (lEC 60216-1)

EN 60216-2, Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermalendurance properties of electrical insulating materials - Choice oftest criteria (lEC 60216-2)

EN 60228:2005,Conductors ofinsulated cables (EC 60228:2004)

EN 60332-1-2:2004, Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for verticalfame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed flame (/EC 60332-1.2:2004)

EN 60811-401, Electric and optical fibre cables - Test methods for non-metalic materials - Part 401Miscellaneous tests-Thermal ageing methods- Ageing in an air oven (lEC 60811-401)

EN 60811-403, Electric and optical fibre cables - Test methods for non-metallic materials - Part 403Miscellaneous tests- Ozone resistance test on cross-linked compounds (lEC 60811-403)