This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of resin-impregnated glass fiber non-weft lashing tapes for electrical use. JB/T 6236.3-1992 Technical conditions for resin-impregnated glass fiber non-weft lashing tapes for electrical use JB/T6236.3-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Technical Conditions for Resin-impregnated Glass Fiber Laying Tapes for Electrical Use
Subject Content and Scope of Application
JB/T6236.3-92
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of resin-impregnated glass fiber lapping tapes for electrical use (hereinafter referred to as lapping tapes). This standard applies to semi-cured lapping tapes made of alkali-free glass fiber yarns impregnated with thermosetting resin after merging. 2
Cited standards
Special definitions and general requirements
Electrical resin-impregnated glass fiber non-weft lashing tape JB/T6236.1
Test methods for electrical resin-impregnated glass fiber non-weft lashing tape
JB/T6236.2
3 Product classification
Products are classified according to their composition. See Table 1 for product classification and models. Table 1
2841-W
2842-W
2843-W
2844-W
Technical requirements
Unsaturated polyester resin impregnated glass fiber non-weft binding tapePhenolic-epoxy resin impregnated glass fiber non-weft binding tapeEpoxy resin impregnated glass fiber non-weft binding tapeModified polyester resin impregnated glass fiber mesh non-weft binding tapeModified ester resin impregnated high-strength glass fiber mesh non-weft binding tapeEpoxy resin impregnated glass fiber mesh non-weft binding tapeEpoxy resin impregnated high-strength glass fiber mesh non-weft binding tapePolyamine-imide (bismaleimide) resin impregnated glass fiber non-weft binding tapeDiphenyl ether resin impregnated glass fiber non-weft binding tape4.1 Appearance
It shall comply with the provisions of Article 5.1 of JB/T6236.1. The mesh non-weft binding tape shall be mesh-shaped when it is pulled horizontally. 4.2 Connectors
Conform to the provisions of Article 5.2 of JB/T6236.1.
4.3 Dimensions
Conform to the provisions of Article 5.3 of JB/T6236.1.
4.4 Performance requirements
Approved by the Ministry of Machinery and Electronics Industry on June 16, 1992 and implemented on January 1, 1993
JB-T6236.392
101006
20100010*8
201X00
10TX00S
01X00801006
Conform to the provisions of Table 2.
5 Test methods
5.1 Appearance
Evaluate by observation and direct feeling of hands. 5.2Thickness
According to the provisions of Chapter 5 of JB/T6236.2
5.3Width
According to the provisions of Chapter 4 of JB/T6236.2. JB/T6236.3—92
5.4Length
According to the provisions of Chapter 6 of JB/T6236.2. The net mass and quantitative data of the non-weft belt shall be provided by the manufacturer. 5.5Volatile content
According to the provisions of Chapter 7 of JB/T6236.2. The drying temperature shall comply with the provisions of Table 3. Table 3
Drying temperature
5.6Resin content
105±2
According to the provisions of Chapter 7 of JB/T6236.2. Soluble resin content
2841-W
2842—W
155±2
According to the provisions of Chapter 8 of JB/T6236.2. The solvent and baking temperature are shown in Table 4. Table 4
Baking temperature
Curing
105±2
2841-W
2842—W
2843-W
Toluene, ethanol (3:2)
155±2
According to the provisions of Chapter 9 of JB/T6236.2. The test temperature is shown in Table 5. Table 5
Test temperature
135±2
Tensile strength before curing
130±2bzxz.net
Perform in accordance with the provisions of Chapter 10 of JB/T6236.2. 2841-
155±2
2844—W
2844-W
200±2
Cresol:xylene (7:3)
200±2
2843-W
2844-W
200±2
105±2
105±2
180±2
5.10 Normal tensile strength of ring specimen
The test is carried out in accordance with the provisions of Chapter 13 of JB/T6236.2. The tying tension for 0.30mm thick non-weft belt ring is 1000N, and the tying tension for other thickness specifications of non-weft belt ring is 500N. Curing conditions are shown in Table 6.47
5.11 Hot tensile strength of annular specimen
JB/T6236.3—92
2841-W
2843—W
2842-W
2844-W
Perform according to the provisions of Chapter 13 of JB/T6236.2. Test temperature is shown in Table 7. Table 7
Test temperature
130±2
Elongation at break of annular specimen
Perform according to the provisions of Chapter 13 of JB/T6236.2. 5.13 Tensile elastic modulus of annular specimen
Perform according to the provisions of Chapter 14 of JB/T6236.2. 5.14 Long-term heat resistance
According to the provisions of Chapter 16 of JB/T6236.2. 6 Inspection rules
155±2
2843-W
180±2
6.1 The same raw materials and processes, the weftless belts produced continuously for 24 hours are batches. Each batch of weftless belts must be inspected before delivery. The factory inspection items are 4.1, 4.2, 4.3 and 4.4 of Table 2 of this standard, 1, 2, 3, 4. For 2842-W and 2844-W products, 5 in Table 2 must be added.
6.2 Sampling method, 1% of each batch of products is randomly selected as a test sample. 6.3 Type inspection items are factory inspection items and items 6 and 7 in Table 2. For 2841-W and 2843-W products, item 5 in Table 2 shall be added.
6.4 Product identification and assessment inspection items are all items in Chapter 4. 6.5 Other items shall comply with the provisions of Chapter 6 of JB/T6236.1. Marking, packaging, transportation and storage
The storage period of 2831 products is one month below 0℃. Other items shall comply with the provisions of Chapter 7 of JB/T6236.1. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Insulating Materials. This standard is under the jurisdiction of the Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Electric Fiberglass Factory. The main drafters of this standard are Wang Yunyu, Sheng Yongqi and Ye Changru. 48
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