IEC 60455-3-8:2021 pdf free download Resin based reactive compounds used for electrical insulation – Part 3-8: Specifications for individual materials – Resins for cable accessories
1 Scope
This part of lEC 60455 gives the requirements for resins for power cable accessories thatconform to this specification and meet established levels of performance. However,theselection of a material by a user for a specific application will be based on the actualrequirements necessary for adequate performance in that application and not on thisspecification alone.
These materials are designed to be used in low and medium voltage cable accessories and assuch, electrical performance is proven as part of the assembly.Examples of this are describedin EN 50393 and lEC 60502-4.
Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies.For undated references，the latest edition of the referenced document(including anyamendments) applies.
IEC 60212，Standard conditions for use prior to and during the testing of solid electricalinsulating materials
IEC 60243-1，Electric strength of insulating materials -Test methods – Part 1:Tests at powerfrequencies
IEC 60455-2:2015，Resin based reactive compounds used for electrical insulation – Part 2:Methods of test
IEC 62631-2-1，Dielectric and resistive properties of solid insulating materials – Part 2-1:Relative permittivity and dissipation factor – Technical Frequencies (0,1 Hz -10 MHz) -ACMethods
IEC 62631-3-1，Dielectric and resistive properties of solid insulating materials – Part 3-1:Determination of resistive properties (DC methods) – Volume resistance and volume resistivity- General method
IEC 62631-3-2，Dielectric and resistive properties of solid insulating materials – Part 3-2:Determination of resistive properties (DC methods) -Surface resistance and surface resistivityISo 179(all parts)，Plastics – Determination of Charpy impact properties
ISo 527(all parts)，Plastics – Determination of tensile properties
ISo 868,Plastics and ebonite – Determination of indentation hardness by means of a durometer(Shore hardness)
ISO 1183-1，Plastics – Methods for determining the density of non-cellular plastics – Part 1:lmmersion method,liquid pycnometer method and titration method
ISO 2137,Petroleum products and lubricants – Determination of cone penetration of lubricatinggreases and petrolatum
ISO 2555,Plastics — Resins in the liquid state or as emulsions or dispersions —Determinationof apparent viscosity using a single cylinder type rotational viscometer method
ISo 4895,Plastics -Liquid epoxy resins – Determination of tendency to crystallize
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISo and lEC maintain terminological databases for use in standardization at the followingaddresses:
lEC Electropedia: available at http://www.electropedia.org/
. Iso Online browsing platform: available at http://www.iso.org/obp3.1
tendency to crystallization
measurement of the ability of epoxy based resin not to change from a liquid to a solid state ata certain temperature close to water freezing point for a fixed time
3.2
type test
test made on materials or components of a cable accessory in order to demonstrate satisfactoryperformance characteristics to meet the intended application
4Designation
Resins for cable accessories are classified in categories according to their application asfollows (see Table 1):
IEC 60455-3-8:2021 pdf free download
