GB/T 29324-2012 Fiber reinforced polymer matrix composite core for overhead electrical conductors
1 Scope
This standard specifies the terms, definitions, specifications, technical requirements, test methods, inspection rules, packaging, marking, transportation, and storage for fiber reinforced polymer matrix composite core for overhead electrical conductors (hereinafter referred to as composite core).
This standard is applicable to fiber reinforced polymer matrix composite strengthening core for overhead electrical conductors.
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.
GB/T 1446-2005 Fiber-reinforced plastics composites - The generals for determination of properties
GB/T 1463-2005 Test methods for density and relative density of fiber reinforced plastics
GB/T 2572-2005 Fiber-reinforced plastics composites - Determination for mean coefficient of linear expansion
GB/T 6995.1-2008 Markings for electric wires and cables - Part 1: General requirements
GB/T 10125-1997 Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 16422.3-1997 Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps
GB/T 22315-2008 Metallic materials - Determination of modulus of elasticity and poissons ratio
GB/T 22567-2008 Electrical insulating materials - Methods of test for the determination of the glass transition temperature
JB/T 8137.2-1999 Delivery drums for wires and cables - Part 2: Wood delivery drums
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 22567-2008 and the following apply.
?
3.1
composite
a new material composed of two or more constituent materials composited through an appropriate preparation process, which not only retains the basic characteristics of the original constituent materials but also possesses superior properties that a single constituent material could not achieve
3.2
fiber reinforced polymer matrix composite core
round rod material composed of one or more fibers composited with resin materials
3.3
diameter
the average of two measurements taken in perpendicular directions on the same circular section
3.4
value f
the difference between the maximum and minimum diameters measured on the same circular section perpendicular to the axis
3.5
grade
composite cores are classified into two grades based on their tensile strengths, namely, Grade 1 and Grade 2
3.6
level
composite cores are classified into two levels based on their long-term allowable operating temperatures, namely, Level A and Level B
3.7
glass transition temperature
Tg
temperature at the midpoint of the temperature range where glass transition occurs
Note: The glass transition may be easily determined by observing the temperatures at which specific electrical, mechanical, thermal or other physical properties change significantly. In addition, the observed temperature may vary significantly due to differences in the properties selected for observation and the technical details of the test (such as, heating rate, test frequency, etc.). Thus, the observed temperature t shall be considered only an approximate value, valid only for specific techniques and test conditions. [GB/T 22567-2008, Definition 2.2]
?
3.8
dynamic mechanical analysis, DMA
a technique for measuring the relationship between a material's storage modulus and/or loss modulus and temperature, frequency, time, or a combination thereof, under vibrational load or deformation
[GB/T 22567-2008, Definition 2.7]
4 Product naming and representation methods
Composite cores are named using model and specification, and the representation method is as follows:
Fiber reinforced polymer matrix composite core for overhead electrical conductors
1 Scope
This standard specifies the terms, definitions, specifications, technical requirements, test methods, inspection rules, packaging, marking, transportation, and storage for fiber reinforced polymer matrix composite core for overhead electrical conductors (hereinafter referred to as composite core).
This standard is applicable to fiber reinforced polymer matrix composite strengthening core for overhead electrical conductors.
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.
GB/T 1446-2005 Fiber-reinforced plastics composites - The generals for determination of properties
GB/T 1463-2005 Test methods for density and relative density of fiber reinforced plastics
GB/T 2572-2005 Fiber-reinforced plastics composites - Determination for mean coefficient of linear expansion
GB/T 6995.1-2008 Markings for electric wires and cables - Part 1: General requirements
GB/T 10125-1997 Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 16422.3-1997 Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps
GB/T 22315-2008 Metallic materials - Determination of modulus of elasticity and poissons ratio
GB/T 22567-2008 Electrical insulating materials - Methods of test for the determination of the glass transition temperature
JB/T 8137.2-1999 Delivery drums for wires and cables - Part 2: Wood delivery drums
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 22567-2008 and the following apply.
?
3.1
composite
a new material composed of two or more constituent materials composited through an appropriate preparation process, which not only retains the basic characteristics of the original constituent materials but also possesses superior properties that a single constituent material could not achieve
3.2
fiber reinforced polymer matrix composite core
round rod material composed of one or more fibers composited with resin materials
3.3
diameter
the average of two measurements taken in perpendicular directions on the same circular section
3.4
value f
the difference between the maximum and minimum diameters measured on the same circular section perpendicular to the axis
3.5
grade
composite cores are classified into two grades based on their tensile strengths, namely, Grade 1 and Grade 2
3.6
level
composite cores are classified into two levels based on their long-term allowable operating temperatures, namely, Level A and Level B
3.7
glass transition temperature
Tg
temperature at the midpoint of the temperature range where glass transition occurs
Note: The glass transition may be easily determined by observing the temperatures at which specific electrical, mechanical, thermal or other physical properties change significantly. In addition, the observed temperature may vary significantly due to differences in the properties selected for observation and the technical details of the test (such as, heating rate, test frequency, etc.). Thus, the observed temperature t shall be considered only an approximate value, valid only for specific techniques and test conditions. [GB/T 22567-2008, Definition 2.2]
?
3.8
dynamic mechanical analysis, DMA
a technique for measuring the relationship between a material's storage modulus and/or loss modulus and temperature, frequency, time, or a combination thereof, under vibrational load or deformation
[GB/T 22567-2008, Definition 2.7]
4 Product naming and representation methods
Composite cores are named using model and specification, and the representation method is as follows:
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product naming and representation methods
5 Specifications
6 Technical requirements
7 Tests
8 Inspection rules
9 Packaging, marking, transportation and storage
10 Acceptance and rejection
Annex A (Normative) Winding test
Annex B (Normative) Torsion test
