IEC 62561-4 pdf download – Lightning protection system components (LPSC) – Part 4: Requirements for conductor fasteners

IEC 62561-4 pdf download – Lightning protection system components (LPSC) – Part 4: Requirements for conductor fasteners
1 Scope
This Part 4 of lEC 62561 deals with the requirements and tests for metallic and non-metallicconductor fasteners that are used in conjunction with the air termination, down conductor andearth termination system.
This standard does not cover the fixing of conductor fasteners to the fabric/membrane/gravelroofing of structures due to the vast number and types used in modern day construction.
LPsc may also be suitable for use in hazardous atmospheres.Regard should then be takenof the extra requirements necessary for the components to be installed in such conditions.
2Normative 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 editionof the referenced document (including any amendments) applies.
lEC 60068-2-52:1996,Environmental testing – Part 2-52: Tests – Test Kb: Salt mist, cyclic(sodium chloride solution)
IEC 60068-2-75:1997,Environmental testing – Part 2:Tests -Test Eh:Hammer testsIEC 62305(all parts),Protection against lightning
IEC 62305-3:2006,Protection against lightning – Part 3: Physical damage to structures andlife hazard1
ISO 4892-2:2006, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon- arc lamps
ISO 4892-3:2006，Plastics – Methods of exposure to laboratory light sources – Part 3:Fluorescent Uv lamps
ISO 4892-4:2004,Plastics – Methods of exposure to laboratory light sources – Part 4: 0pen-flame,carbon-arc lamps
ISo 6988:1985,Metallic and other non-organic coatings – Sulphur dioxide test with generalcondensation of moisture
Iso 6957:1988,Copper alloys – Ammonia test for stress corrosion resistance
3Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
conductor fastener
metallic，non-metallic or composite component designed to retain and support the airtermination，down conductor and earth termination system，installed at intervals along thelength of the conductors
4Classification
Conductor fasteners are classified as follows:a) According to material
– metallic (e.g. hot dip galvanized steel, copper, aluminium, stainless steel);- non-metallic (e.g. PvC. plastics);
– composite (combination of metal and plastic);
b) According to fixing arrangement of the conductor within the conductor fastener-with screws;
-without screws (e.g. clips, springs);
c) According to conductor clamping arrangement
– conductor fasteners that are designed to clamp the conductor;
– conductor fasteners that are designed to clamp but allow axial movement of the conductor.
5 Requirements
5.1General
The conductor fastener shall carry out its function of clamping the conductor in an acceptableand safe manner when subjected to mechanical influences，lightning discharge stress andenvironmental influences.
Conductor fasteners shall comply with the tests given in Clause 6. The material of theconductor fastener shall be compatible with the conductor it is fastening and the surfacematerial onto which it is mounted.
NOTE 1 Certain extreme environmental conditions make the choice of non-metallic conductor fastenersunsuitable.Specific recommendations should be provided by manufacturers as to their suitability in varyingenvironments.
NOTE 2 Conductor fasteners should be so designed and constructed that safe handling is ensured, that retentionand support for the conductor is provided, and that in normal use their performance is reliable and without dangerto persons and the surrounding.
5.2 Environmental requirements5.2.1corrosion resistance
Metallic or composite conductor fasteners shall withstand corrosion effects.
Compliance is checked following the manufacturer’s declaration for the classification of theconductor fastener in accordance with Clause 4 and by test specified in 6.3.2 and 6.3.4.
5.2.2uv resistance
Non-metallic and composite conductor fasteners shall withstand UV effects.