IEC 62561-2:2018 pdf download

IEC 62561-2:2018 pdf download.Lightning protection system components (LPSC) – Part 2: Requirements for conductors and earth electrodes
1 Scope
Part 2 of IEC 62561 specifies the requirements and tests for: – metallic conductors (other than “natural” conductors) that form part of the air-termination and down-conductor systems, – metallic earth electrodes that form part of the earth-termination system.
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 60068-2-52:1 996, Environmental testing – Part 2-52: Tests – Test Kb: Salt mist, cyclic (sodium, chloride solution) IEC 62305-3, Protection against lightning – Part 3: Physical damage to structures and life hazard IEC 62305-4, Protection against lightning – Part 4: Electrical and electronic systems within structures IEC 62561 -1 :201 2, Lightning protection system components (LPSC) – Part 1, Requirements for connection components ISO 21 78, Non-magnetic coatings on magnetic substrates – Measurement of coating thickness – Magnetic method ISO 6892-1 , Metallic materials – Tensile testing – Part 1: Method of test at room temperature ISO 6957:1 988, Copper alloys – Ammonia test for stress corrosion resistance ISO 6988:1 985, Metallic and other non-organic coatings – Sulphur dioxide test with general condensation of moisture
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp
3.1 air-termination system part of an external LPS using metallic elements such as rods, mesh conductors or catenary wires intended to intercept lightning flashes 3.2 air-termination rod part of the air-termination system consisting of a metal rod for intercepting and conducting flashes to the down-conductor and earthing system components of the LPS 3.3 air-termination conductor part of the air-termination system consisting of a conductor for intercepting and conducting flashes to the down-conductor and earthing system components of the LPS 3.4 down-conductor part of an external lightning protection system, which is intended to conduct lightning current from the air-termination system to the earth-termination system 3.5 earth-termination system part of an external lightning protection system, which is intended to conduct and disperse lightning current to the earth 3.6 earth electrode part or group of parts of the earth-termination system, which provides direct electrical contact with and disperses the lightning current to the earth EXAMPLES: Earth rod, earth conductor and earth plate. 3.7 earth rod earth electrode consisting of a metal rod driven into the ground 3.8 earth conductor earth electrode consisting of a conductor buried in the ground 3.9 earth plate earth electrode consisting of a metal plate buried in the ground 3.1 0 earth rod coupler part of the earth-termination system that facilitates the coupling of one section of an earth rod to another for the purpose of deep driving 3.1 1 driving head tool used in those applications where it is necessary to drive the earth rod 3.1 2 earth lead-in rod rod installed between the down-conductor/test joint and the earth electrode
4 Requirements
4.1 General Conductors and earth electrodes shall be designed in such a manner that, when they are installed in accordance with the manufacturer’s instructions, their performance shall be reliable, stable and safe to persons and surrounding equipment. The choice of a material depends on its ability to match the particular application requirements such as life cycle of the material, effects from galvanic corrosion and compatibility with other interconnected materials or services. A summary of the requirements are given in Annex C and Annex D and their corresponding tests are given in Annex A, Annex B and the sequence of tests in Annex E (Figure E.1 ), Annex F (Figure F.1 ) and Annex G (Figure G.1 ). 4.2 Documentation The manufacturer or supplier of the conductors and earth electrodes shall provide adequate information in their literature to ensure that the installer of the conductors and earth electrodes can select and install the materials in a suitable and safe manner, in accordance with IEC 62305-3 and IEC 62305-4.