Some standard content:
ICS 85. 060
Classification number: Y31
Reference number: 15740-2005
Light Industry Standard of the People's Republic of China
QB/T2688-2005
Q8303-1990
Insulating boardbzxz.net
Issued on March 19, 2005
National Development and Reform Commission of the People's Republic of China Implemented on September 1, 2005
Revision of the standard to QT3503-1999 electrical insulation effect QB/T2658-20C5
This standard is not equivalent to the modification degree of IEC60641-3:192 Industrial board and curtain board - Part 3: Specification for individual materials 3.
According to 1F0413:1992, the following changes are made:
For thick (i.e. B type) board, only B.0.1, B.2.E, B.3.1 requirements are adopted, and B.2.3, B.3.3, B.4.[, B.4.3, B.5.1, B.6.1 and B.7.1 requirements are adopted: For thin (i.e. P type) paperboard, only P.2.1, P4.1, P.4.J, P.6.1 requirements are adopted, and H4.2 and 1.7.1 requirements are not adopted. Compared with FQB/T3503-1999, the main changes of this standard are as follows: the name of the standard has been changed; the second chapter "Pastoral and Pastoral Data" has been added; the product classification has been changed; B.0.[, P.4.1 and P4.3 varieties have been added, or the I type catalog has been deleted; the provisions of nuclear classification D and G internal production have been added: 3.1, 3.2); the technical indicators of .0.1, P4.1 and 4.3 varieties have been added to the requirements; The technical indicators of three types of 1 type 5U5, 10/M (small and medium size) and I (/100 [large size) were cancelled. The filling and filling requirements of B.2.1, B3., P.2.1 and 1P.6.1 were completed. The color reduction regulations of the products were added (4.5; the standard gas conditions for the paper rescue test and the test before the test were added to the test force method (5.2). The sample was removed and modified (Section 6). The two sets of equipment were installed and repaired (7 .2)
This standard was proposed by China National Light Industry Association. This standard is sponsored by China Paper Standardization Center: 1. The drafting unit of this standard: Xichuan Jusong Paper Co., Ltd. The main contributors of this standard: Shangzhongjun,
The previous versions of the standards replaced by this standard are: QB342-1973, ZBY31003-1987, QH/T35113-1999. This standard will be implemented from the date of implementation of China National Light Industry Association. The industry standard QB/T33-[99] pure paper. Standard of China
Insulating paperboard
QR/T2688-2005
This standard defines the classification, requirements, test methods, batch samples and source identification, packaging, transportation, storage, This standard applies to the insulation paper items of motors, electric circuits, instruments, switch transformers and other insulation equipment and their components. ? Normative references
The clauses in the following documents are put as the clauses of this standard through the reference of this standard. The referenced documents are the referenced documents of the period, and all subsequent amendments (excluding the content of the auxiliary error) or revisions are not applicable to this standard. However, it is recommended to use the latest versions of these documents for research based on this standard. For any document that is not applicable, the latest version is applicable to this standard, GBT450 Collection of low-yield paper long test specimens (GD/T450-2)2, eqVISU186. 19) GB/T451.1 Determination of size and deflection of paper and paperboard GB/T451.2 Determination of the weight of paper and paperboard (GB/T4512-2002, ISO536:1995) GB/T451.3 Determination of the strength of paper and paperboard (GB/T451.3-2002, ISO534:188) GB/T453 Determination of the extreme resistance of paper and paperboard to non-standard load (constant rate of charge method; (GB/T453-2002, ISO534:188) 9241:1992) GB/T462 Determination of moisture content of new paperboard GB/T462-2003, 1SO2R7:198:MOD) GB/T742
Determination of residual matter (branch) flash (900C) (GB/T742-2003:1SO2144:1997MO)
GB/1408. Test method for moisture content of solid absolute material T frequency test powder (D/T14 08.1-1999:VIFC60243-[:1988)
GHT1545.2 Paper. Determination of pH of water extract of paper pulp (GB/T1545.2-20031SO658X:191,MOD) GB/T2828.1: Counting sampling test procedure Part 1: Acceptance quality limit (AQL\Test case sampling period GB/T2828.1-2003.ISO 28591:1999,T)GHT7976 Determination of conductivity of paper and paper water bath (GB/T7976-1987, ne4[SO554:1976) GB/T1342 Gas packaging and marking of paper sheets
GB10739 Paper, standard atmospheric conditions for external use and experiment of paper packaging samples (GB/10730-2002, enV1SO187:1990.
GB/12914 Preparation of paperboard for tensile strength (speed sinking) (GD/T12914-199! , network%[S1924-2::9853
3 Classification
31 According to the same scientific and technological performance, products are divided into special types. Each type has a different mother and mother number. 3.1.1 The letter "B" represents original insulation cardboard, and "P" represents thin insulation cardboard. 3.1.2 Mathematical formula of two digits: the first digit indicates the manufacturing process, number "0" is high chemical purity, number "2" is chemical pure pressed paper, number "3" is commercially available and strong and strong board, number "4" is high purity oil absorption range, number "6" is low density hard positive board: the second digit indicates the raw material, number "10% acid wood pulp, number "3" is a combination of acid pulp and carded pulp: 3.2 Insulation paper density is not divided into 1), inner and outer, = "D" is higher density virtual edge board, "heart" is high insulation low version. 3.3 Insulation low recovery code TYD
QR/26832CC5
: HP.2.一0.2 5B means 100% back-station. The high-quality chemical products produced in this case are 0.25T positive light net absolute report, 3.4 lead edge effect board, flat plate, simple chain plate. 4 requirements
4.1 The standard height of about 96 is 0.10.0.15, 0, 2, 0, 25, 0.30, 0.35, 0.40, 0.50, 0.60, 0.80, 1.0, 1.31..2..2.5, 3., 4, 0, 5.0, 60, 7.0, 8.0m. 42 degrees ".50mm" products should be made of polar paper, thick skin is not human. The product is a flat plate: 4.3 size and deviation
4.3,: the size of the polar edge cardboard and the allowable reading, grinding material degree meet the requirements of the table [Yi]. Table 1
Zhongsige
4 feet (direction/)
3250400
1050×1980
1080×1400
2 K0X1000
10001000
929329
group/rum
4.3.2 The width of the paper bottle is 1000mm and 1200mm, and the deviation should not exceed 1Llmml. The diameter of the paper bottle is 200mm~800mm
4.3.3 According to the joint regulations, other sizes of flat insulation boards or rolls can be produced. 1.4 The technical indicators of the specification should meet the requirements of 2 and 3: or the joint regulations Table 2
Indicator Military Standard
Thickness Price Production and Insurance
1.6mm.3.0mm
2~3.0nm6.0mm
6 OMMF.O r
.01.20
.15--1.31
Tensile strength
Some small businesses
Suction device
Optical name
Local concentration PH
Water condensate
Air towel
Water content
-1. 6 mm~ 3.0 mm1r
>3.6 mm~6 mm
a0mn -x.0mm
1. 6 mm--3. 0 mm
>3.0mm~Uum
6.0mm~8.0mm
1.6mm~3.0mm
3. 0mmS.0 rm
\. rrrr h.rn
2ri.0me-8.6 :rm
1. 6m3, U r
>3, trmn~t.tm
h, thtnn8. Irm
2-[. 6 mm-- 3. 0 rom
2. 0m ~n, U
h. [lim ~R. u--y 5
QB/T2688-2005
Indicator customer ring
Quality charge allow reading ticket
According to the method of performance
Protective store bottom
Elongation bull
9, 10 1*-0. 501 mm
:0.50:nrm
0. 35 mg*-0. 51J mm
u. 25 erim
0.35 1:*-0. 50 mm
.2ihrurm
0. 35 mm--0 50) mz
0. 15 :nm
0. 35 mm -09. 50 mct
0. 1d inm
0. 35 rm-~~U. 5 mm
N/nanc
1.20~·t.30
-.0 : 4.5
1.60~-1.20
( 5-1. 20)
1.15--1 25
row elongation punch
end rate
absorption control rate
machine name
h15 mn
Mucan Anbo Fengning
l. 20 urn
0. 35 tum-- 2. 50 mm
0. 1S rrn
G. 40 mm--0. 50 mL
35 mm~0. 50 s
Table 3 (continued)
QB/T 2688—2005
6. 0--5. D
QB/T26-2005
Indicator name
U. 48) mm--h. 52
Air Man Institute
Safety service technical points
.sr urn
s nn.-o.smm
0. a cm-. 50 mn
Table 3 (continued)
4.2 After calendering, the paper should be uniform, neat and clean. 4.3 The paper should be completely free of plastic, cracks, holes visible to the naked eye, fiber defects and electrical impurities. 4.4 The paperboard should not be divided during punching. 4.5 The same dyed paper should be exempted from the following examination: 4.6 The shrinkage of each roll of paperboard should be more than 3 joints, and there should be a clear mark at the end. 5 Test method 5.1 The sample shall be collected according to GB/T450: 5.2 The test treatment and test conditions shall be detailed in GH/T10739. 5.3 Dimensional deviation shall be determined according to GB/T451.1.
5.4 Determination of strength according to GB/T-51.3:
5.5 Compactness shall be determined according to GB/T451.2 and GB/T451.3. 5.6 Aerodynamic strength: Determined according to GB/T453 or GB/T12914, and determined according to GB/T12914 when cutting. 5. Tensile strength after folding
QB/T 26B8-2005
In the middle of the length direction of the sample, first make the cut sample straight with the long side of the sample, then put the end into the folding material: see Figure 2, put it in the guide, then fold the new sample in the opposite direction, and then pass it through the folding device for the second time. The force at the fold is 150N, and finally it is reduced to 5.6. a
Nan 1 New folding diagram
Single world meaning some
Figure 2 Folding cover
QB/T2688—2005
5.8 Length efficiency determination
5.9 Folding length of the sample after folding, fold the sample according to 5.7, and then assemble it again. 5.8 Determination: 5.10 Shrinkage
Use 50mm×300mm in the form of 1 piece (number, 1 piece), and place it in a temperature of (23±1)℃ and a machine convection of 50=2% for at least 16h. Determine the length and original length of each sample, and the length should be reduced to 0.2m. Make marks at the appropriate points and measure the single point at least 20cm away from the edge of the test paper. Then use a natural silk machine to tighten each sample and put it into the next drying condition (105+2). Open the sample and determine the shrinkage and thickness of the sample. Calculate the shrinkage of the longitudinal and transverse length and thickness before and after the drying treatment according to the weight of 1 respectively, and calculate the absolute value of the dimensional change. The average value of the shrinkage in each direction is used as the measurement system, and the absolute value is 0.1. Shrinkage rate (%) = 2
Where:
is the thickness of the test grid mark or the distance between the test points under drying, in meters (m): the thickness of each point marked under the test grid under drying, in meters (m)! : 5.t1 Oil absorption rate
!jPut three samples of 75mm×75mm, and keep them in the air for 100a under the pressure of (105=2), and then slowly release the pressure to make the samples cool in the dryer. Depending on the amount of each test group, accurately put the samples into the vacuum dryer: at 902)&10P point, add the hot transformer oil slowly, and keep it within 250a: the characteristics of the transformer oil are specified in 4. Table 4
Indicators
Send the tour)
Internal point (called ~
Ixox1 !sos)
, side brackets cs: use meter second system cGS) Ning single, change X1St=1m=6m/ When the test sample is completely immersed, remove the vacuum and turn off the heat: After the test sample is immersed for 6 hours, take out the sample, absorb the oil on the test sample with water, weigh the sample mass, determine the oil absorption of the sample, and calculate the oil absorption rate according to formula (2). Take the average value of each test sample as the test result, and adjust to 0.1%
Acid absorption rate (%)=mm=×1 example)
The mass of the sample before absorption is grams: The sample after oil absorption is grams (). 5.12 According to GB/T463, the following specifications are used for determination. 5.12.1 Weigh 4+ samples: 5: Temperature (575125) 5.12.2 The value of the same temperature should not exceed 1mg5 for two measurements. 13 Water pumping hot liquid according to G3/T 1545.2 Determination. 5.14 Water conductivity GB/T7976 8
5.15 Electrical strength GB/1408.1 determination: adopt the continuous average hook method, as supplemented. QB/1266-2005
5.15.1 Electrode: upper electrode diameter is 25mm, lower electrode diameter is 25l, angle radius R is 3m, lower electrode diameter is 75mm
5.15.2 * (test grid with selected pre-treatment conditions: sample size is 300mm300mm, 105±2) box + Yao ten car: move into the upper recovery device to the house temperature, from the work dryer to the point after the test 5.15.3 Wine test with selected original place Rui bar: size is 300mm×300mm, volume is 105+2 and pressure is 100Pa Bake in the case for T24h. Add the transformer that must be heated to y0 and meet the requirements of Table 4, and make the sample fully penetrate into the sample, remove the air, and make the sample in the temperature of 90 ± 2) and the weather force without oil, 24. When the sample is finished, cool it for 23 minutes, and put it in an appropriate position: store it between the test and the test. The sample is not exposed to the room in sequence: 5.15.4 After the test is determined, the required temperature should be adjusted along the longitudinal change of 130 degrees, and then the temperature should be adjusted once, and the temperature should be leveled, and the temperature should be changed into a constant temperature box (105 3 1): under the change mark - the test is also tested. 515.5 Take a test for the specified, take it as the letter, and the result should be corrected to 1k/mms.5.16 Delivery technology GB/T462 determination:
6 push sample
6.1. The paper version of the medical certificate produced by the medical institution is unpacked and the quality control test is carried out again. Each batch of products (not shown below 60) shall be attached with a quality inspection report: 6? Responsibility for the inspection: During the inspection, the outer packaging should be checked first, and then the trial selection should be made. If there is any objection to the product quality, it should be reported within one inch after arrival according to the contract specifications. If the sampling and re-control results do not meet the standard requirements, the batch will be unqualified. If the inspection results do not meet the standard requirements, it will be judged as unqualified, and the party responsible may be punished. 6.3 Count sampling inspection process! According to GH/12828.1, the sample single inspection For parts or feelings. Acceptance quality limit AQL1: hardness, machine tension, shrinkage, also gas strength, AQL = 4: maximum, secondary elongation, absorption rate, water extraction conductivity, water concentration, ash content, you you moisture, A0L-65: Can choose the plan to use the normal inspection method, the inspection run is the confirmation level S2 (see Table 5):
on the belt pregnancy test - the second axis sweep in the room
151-280
6.4 Acceptability determination
year for parts business?
performance inspection light S2
the first - the number of products used for the adjustment should be equal to the plan price! ! Investment: for the small owner, the first sample found that the number of small products is small, or the first work Acceptance number: If the number of unqualified products found in the sample is greater than or equal to the first acceptance number, the batch should be considered unacceptable. If the number of unqualified products found in the sample is between the first acceptance number and the first rejection number, the first sample should be given according to the QB/T2688-2005
test method. The number of unqualified products found in the first sample and the second sample should be recorded. If the number of unqualified products is greater than or equal to the second acceptance number, the batch is considered unacceptable.
7 Marking, packaging, transportation and storage
7.1 Insulation paper The marking shall comply with GB/T10342 or the provisions of the contract. 7.2 The insulation cardboard shall be processed in accordance with GB/T10342, with the following additions. 7.2.1 The flat insulation cardboard is harvested in pieces of 20 kg each, and the inner package shall be lined with plastic film. 7.2.2 The quantity of each insulation cardboard is 250kg~350kg: the inner package shall be filled with plastic film. 7.2.3 Cardboards of different sizes, lengths and lengths shall be packed separately. 7.3 When transporting insulation cardboard, transportation tools with anti-expansion measures shall be used. When moving and stacking, insulation cardboard shall not be dropped from a high place. When unloading bags and unloading paper, it shall be lightly loaded and handled. 7.4 The insulation cardboard shall be properly stored and shall be protected from the influence of wind, rain, snow and ground moisture.
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