This part specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of resin-impregnated fiber mesh for electrical use. This part is applicable to mesh made by flat twisting alkali-free glass fiber and roving into a fabric with large mesh, impregnated with epoxy resin or modified epoxy resin and then heated and cured. JB/T 10322.3-2002 Resin-impregnated glass fiber mesh for electrical use Part 3: Single material specification Epoxy glass fiber mesh JB/T10322.3-2002 Standard download decompression password: www.bzxz.net

ICS29.035.99
2002-07-16
JB/T10322.3
2002-12-01
JB/T10322 "Resin-impregnated glass fiber mesh for electrical use" is divided into 3 parts: Part 1: Definitions and general requirements:
Part 2: Test methods:
Part 3: Single material specifications
, epoxy glass fiber mesh.
This part is the third part of IBT10322.
This part is proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Technical Committee for Standardization of Insulating Materials (CSBTS/TC51). Drafting units of this part: Shanghai Yaohua Composite Materials Co., Ltd., Guilin Electric Science Research Institute. The main drafters of this part: Xu Zhiwei, Ma Linquan, Yu Longying JB/T10322.3-2002
1 Range
Electrical resin impregnated glass fiber mesh
Part 3: Single material specification
Epoxy glass fiber mesh
JB/T 10322.3-2002
This part specifies the product classification, requirements, test methods, acceptance rules, marking, packaging, transportation and storage of epoxy resin impregnated glass fiber mesh for electrical use (hereinafter referred to as mesh). This part is applicable to mesh made of alkali-free glass fiber and coarse yarn flat twisted into a fabric with large mesh, impregnated with epoxy resin or modified epoxy resin and then heated and cured.
The mesh is mainly used as a filling and reinforcing material for the integral cast insulation layer of the dry-type transformer winding. 2 Normative references
The clauses in the following documents become the clauses of this part through reference in this part of JB10322. All subsequent amendments (excluding errata) or revisions to the dated referenced documents are not applicable to this part. However, customers who have reached an agreement based on this part are encouraged to study whether the latest versions of these documents can be used. For any un-dated referenced documents, the latest version shall apply to this part GBT11026.1-1989 Guidelines for determining the thermal stability of electrical insulating materials - General procedure for formulating aging test methods and evaluating test results
JBT2197--1996 Classification, naming and model compilation methods for electrical insulating materials JB/T10322.1-2002 Resin-impregnated glass fiber mesh for electrical use - Part 1: Definitions and general requirements JB/T10322.2-2002 Resin-impregnated glass fiber mesh for electrical use - Part 2: Test methods 3 Classification of products
3.1 According to the provisions of JB/T2197-1996, the products are divided into 2940 epoxy glass fiber mesh and 2950 epoxy glass fiber mesh. 3.2 Specifications are divided according to thickness and mesh size and are marked as follows: C.OO 1 OX0
Nominal mesh size, unit is nim
Mesh thickness, unit is mm
The following are several typical specifications:
2.40/5×4 220/10×81.90/5×41.60/5×41.20/5×44Technical requirements
4.1 Appearance
Conform to the provisions of Chapter 5 of JB/T10322.I-20024.2 Size
4.2.1 Thickness and deviation
Recommended nominal thickness is 1.20mm, 1.60mm, F.90mm2.20mm, 2.40mm, thickness tolerance is ±10%Other specifications are subject to negotiation between the supply and demand parties,
4.22 Nominal mesh size
JB/T 10322.3—2002
The recommended nominal mesh size is as follows: 10mm×4mm, 10mm×8mm, other specifications are agreed upon by both parties: 4.2.3 Width
The recommended width is 1000mm, the allowable deviation is 10mm, and other specifications are agreed upon by both parties. 4.2.4 Length
According to the thickness of the mesh, the recommended length is as follows: 40ml, 50m, 100m; the allowable deviation is 0.5m, and other specifications are agreed upon by both parties.
4.3 Minimum meridian curvature radius
The minimum meridian curvature radius is shown in Table 1. bZxz.net
Minimum warp radius requirement
Unit: mm
Grid thickness
Less than 1
Greater than or equal to 1, less than 2
Greater than or equal to 2
Composition and deviation
Minimum warp radius
The recommended preferred composition requirements for typical specifications of grids are shown in Table 2. Other specifications are determined by the supply and demand parties. Table 2 Recommended preferred composition requirements for typical specifications of grids Sequence
Composition name
2: Approximate density
3, Fabric yarn
Preparation ratio
4! Resin containing disc
Performance requirements
Performance requirements are shown in Table 3.
Test method
Visual inspection,
5.2 Size
1.60/5×4
1050+100
0.62 ±0.06
1.95/5×4
100±100
0.56±0.06
14--16
Degradation 3 Performance requirements
Surface insulation resistance
Surface breakdown voltage
Water absorption
Bending failure load
Tensile failure load
Temperature index (TI)
The grid width is measured with a steel ruler, and the length is converted from weight and quantity. 5.3
According to Chapter 4 of JB/T10322.2-2002. Minimum radius of curvature in the meridian
According to Chapter 8 of JB/T10322.2-2002. 2
2.20/10X8
1000±t00
0.42±0.04
14 ~16
1500±1
0.62±0.06
1.20/5×4
650±60
0.52±0.05
:1×10
5.5 Quantitative
According to Chapter 5 of JB/T10322.2-2002. 5.6 Approximate density
According to Chapter 7 of JB/T10322.2-2002. 5.7 Resin content
According to Chapter 6 of JB/T10322.2-2002. Water absorption
According to Chapter 9 of JB/T10322.2-2002. 5.9 Bending failure load
According to Chapter 10 of JB/T10322.2-2002. 5.10 Tensile failure load
According to Chapter 10 of JB/T10322.2-2002. 5.11 Surface insulation resistance
According to Chapter 14 of JB/T10322.2-2002 5.12 Surface breakdown voltage
According to Chapter 13 of JB/T10322.2-2002 5.13 Temperature index
According to Chapter 15 of JB/T10322.2-2002 6 Inspection rules
JB/T 10322.3-2002
Continuous production of 500m per batch according to the same raw materials and process. The factory inspection items are the resin content in 4.1, 4.2, 4.4 and the surface breakdown voltage in 4.5 of this part. The type test is all items in Chapter 4 except the temperature index in item 6 of Table 3, and shall comply with the provisions of JB/T10322.1-2002. Type test is conducted once a year: 7 Marking, packaging, transportation and storage
7.1 The following markings must be made on the outer packaging of each roll of mesh: a) Product label number:
b) Product model name and specifications:
Production date:
Manufacturer name:
e) Weight or area.
7.2 The mesh is generally supplied in rolls, with an outer diameter of ≤1000mm. It is packaged with moisture-proof and light-proof isolation paper or plastic woven bags, and then packed into boxes to prevent the product from external mechanical damage. 7.3 The transportation of the mesh should prevent the packaging from moisture, pollution and direct sunlight. Be careful when loading and unloading to avoid damaging the product. 7.4 The mesh should be stored in a dry and ventilated place, and avoid high temperature and direct sunlight. Its storage period is 1 year. If it exceeds 1 year, it should be re-inspected according to the product label. Qualified ones can still be used.
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