This standard applies to hard materials based on flaked mica or mica paper for commutator separators. GB/T 5021-2002 Commutator separators and materials GB/T5021-2002 standard download decompression password: www.bzxz.net

ICS 29.035. 50
National Standard of the People's Republic of China
GB/T5021—2002
eq% IE 60371-3-1:1984
Commutator separators and materials
Commutator separators and materials2002-05-21Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2003-01-01
GB/T5021—2002
This standard is not related to gas equipment, but is a series of standards for insulating materials and continuous paper made of sheets of paper with or without reinforcement and bonding. This series of standards are as follows: GB/T02 Definition and general requirements of mica-based insulating materials GB/T=0192 Test methods for pool-explosive materials based on mica 3 GB/T5022 Mica-based flame retardant materials for electric heating equipment 3 GB/10216 Mica-based mica boards This standard is equivalent to the International Electrical Commission publication IEC603713-1.19846 Specification for insulating materials based on mica - Part J: Single material specification Part 1: Commutator mica boards and materials >, which is a revision of (/T=021-1935 Commutator mica boards). The technical content and writing format of this standard are basically the same as those of IEC60371-3-1; 1954, and the minor differences are as follows: 1) The introduction content of IEC.603718-1.1984 is slightly modified. 2] Added the third "application standard". This standard is different from GB/T5021-1985 in the above requirements and is combined with 1) According to GB/T60371-3-1:1984, in the "thickness" and "length and width" requirements, the "board", "strip", "commutator separator with a surface area of ​​1Ur" and "commutator pole with a surface area greater than 10cm2" are added. The "nominal thickness allowable difference" and "length and width" are added. "Regulations require that the performance requirements of the layering scheme in G3T5021-1985 be cancelled. According to C60371-3-1, 1984, the 2.2/cm2 in B/T50211985 shall be set as 2.2/22~2.6g/cu1 (with mica as the material) and .2g/cm2~2.4/cm2 (with low as the base material). This international standard will replace C/ T=021--1335 This standard was proposed by the China Electric Industry Association: This standard is jointly approved by the National Technical Committee for Standardization of Insulating Materials, and the main initiator of this standard is Shanghai Electric (Group) Co., Ltd. Mica Insulating Materials Factory. The main author of this standard is Lao Yuanxing.
This standard was first issued in March 1985 and revised for the first time in May 2002. This standard was entrusted to the National Technical Committee for Standardization of Insulating Materials for interpretation. GR/T5021-2002
IEC Foreword
1) Formal resolutions or agreements of the EC on technical issues are formulated by technical committees composed of representatives of national committees that are particularly concerned with these issues, and the opinions on the research subjects are expressed as much as possible internationally. 2) These technical resolutions or agreements are used internationally in the form of recommendations and are accepted by national committees in this sense. 3) To promote international unification, the IEC National Committee allows the use of IEC recommended documents as national standards in its national policy. Any differences between IEC recommended texts and the corresponding national standards should be clearly indicated in the national standards as far as possible.
1) IEC does not provide any marking procedures to indicate its approval and is not responsible for any equipment claiming to conform to IEC recommended texts. IEC Introduction
This standard was prepared by the 15C Technical Requirements Committee (Specifications) of the IEC Technical Requirements Committee (Rubber Materials). This is the second edition of the IEC publication 60371-3-1, which replaces the first edition of the IEC publication 60371-3-1. The text of this standard is reproduced in the following documents:
Entry into the monthly society
15C(00)134
Voting report
15C(C0>148
Full information on the voting of this standard can be obtained in the report indicated in the table above. The following IFC publications have been used in this standard: IEC 60371-2:181 (first edition): Mica-based materials - Specification for mica-based materials - Part 2: Test methods (in preparation). 1 Scope
National Standard of the People's Republic of China
Commutator separators and materials
CNMNnutathr separetora and materlalsGB/T 5021--2002
eqv[EC 60371-3-1:1984
Replacement B/T5%21—1985
This standard applies to hard materials with mica or mica paper as the base material for commutator pole separation. These products are made of mica or mica sheets or mica paper bonded with a suitable adhesive. The supply form is as follows: sheets supplied in pressed or trimmed sizes are supplied in strips cut from sheets.
-Commutator partitions that meet the shape and size specified in the customer's order. The nominal thickness of the product is (m.3~2)mm: 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were valid, and all standards were revised. The parties using this standard shall discuss the applicability of the following standard versions. GB/T509-2002 is the first draft Test method for delivered materials (E60371-2: 1957+M0D) 3. Additional requirements
The material supplied shall be hardness-free, free of spots and foreign contamination. The adhesive used shall be agreed upon by the supplier and the buyer. When tested by B-5019, the material shall meet the requirements of this standard. 4. Thickness
4.1 The nominal thickness is the thickness required for the order, i.e. the thickness at the time of delivery (change 4.2 Measurement and tolerance
The relative tolerance of nominal thickness (mm) is as follows: 4.2.1 Sheet, strip or plate specimen with surface area = 10cm2 is required: According to 5.2.1 and 5.2.4.1 of GB/T5019-2002: The measurement principle shall be the same as that specified in 5.1.3 of the standard. The diameter of the measuring area is 6mm~8mm. The pressure is ?MPa). The thickness measurement method shall be in accordance with 5.3 of GB/T5019-2002. The thickness deviation is shown in Table 1. Table 1
Mica
Sample tolerance
The difference between the maximum and minimum thickness of the same sample ±dU.i tora
China Quality Supervision and Inspection Agency Inspection and Quarantine Bureau 2002-05-21 Approved Master Order
(Tolerance)
Mica
(Gao Jingchen Public Certificate)
0.04 rafa
2003-01-01 implementation
4.2.2 Commutation group partitions with thickness greater than 10 cm* for coating machines 4.2.2.1 Commutation plate supplied in single piece GB/T5021-2002
Sample: Test according to 5.2.5.2 of GB/5019-2002. The actual measurement shall be in accordance with 5.3 of GB/T5019-2002. Thickness deviation Table 2. Table 2
Mica
Test sample tolerance
Maximum thickness of the same test sample but smaller than the thickness of the old pad
4.2.2.2 Stacking height of the commutation partition supplied with standard incense 10.02 mm
Mica paper
The standard stacking price and number of each piece of the commutation partition shall be stated when ordering, and the height of the measuring plate shall be in accordance with the provisions of 5.1.4 of GB/T50192002. When the pressure is 30Ma, the difference between the measured height and the nominal value shall comply with the agreement between the supplier and the buyer. 5 Other sizes
The tolerance of the nominal length and width of the cut sheet is ±5 mm. For the sheet with closed edges, the quality standard shall be determined according to the agreement. 5.2 The length tolerance is ±5, and the nominal length tolerance is ±0.5mm. 5.3 The total dimensional tolerance is as follows: The commutator plate with a surface area not exceeding 10cm is ±0.3mm, and the commutator plate with a surface area of ​​more than 10cm is ±0.5mm. 6 Fasteners and conductive particles Before the detection method for defects in H product 55019 has reached an effective level, fasteners can be determined in the form and quantity agreed by the manufacturer and the user.
7 Performance
Table 3 and.This section lists the performance specifications of mica-based products for commutator spacers (regardless of the form in which they are supplied). 8 Mica or sheet mica products for commutator spacers are supplied in the following shapes: approx. 1 mm long, 50 mm to 1 (00 mm Wide sheet: 10 cm long, width not more than 20 mm strip
A long area CcⅢ "and below the molded commutator plate is usually supplied in bulk unless otherwise agreed between the manufacturer and the user!
The leather type commutator plate with an area greater than 10 cm\ can be supplied in either a concealed form, a non-standard form or a standard form. The number of pieces per stack (usually 20 to 50 pieces) is specified in a special agreement. In addition, according to the type of material, the sheet pad can be marked with an isolation layer 9
On the outside of the package, the wood mark number and the product model (for example GL/T5021 1-200P7 type) manufacturing unit, nominal thickness and size, each package opening effect and/or quality stamp. 2
GR/T5021—2002
When the product is supplied in the form of packaging + each package is also marked with the following additional instructions, non-standard stacking each package commutator spacing number
Standard stacking: each package commutator with plate and total stacking (missing the thickness of the isolation layer), change 3 requirements for materials based on mica 3
punching type, white mica
punching type, phlogopite
standard type, white cloud book
internationally known as thick good
0. 3--1. 5
Forbidden type, cavity material, gold 0.~2
Special bed type B. Kouyundan
Clean coal to goldWww.bzxZ.net
Corresponding dry GB/T5019 clause
Resistance to rust and
Resistance to price
No requirements
Elastic pressure auxiliary
1) Under the condition of certain proof, use the standard to check whether there is no existing standard agent or position, 2) The strip and the falling board use 6mm electric original sheet 25m75m. Note that the density of all materials is between 2.2g/4rn and 2. Fg/en: In the specification, Table 4 shows the requirements for the material of the base material 3
Punching industry cloud book
Standard type, white mother
Standard type, industry cloud thick
Type A white mother
Special type A, mica
Bed type B. Square mica
Special protection type B Jinyundan
Corresponding to GB/T5019 clause
Standard military degree
0. 3 ~1. G
Sub-port output and
Position resistance\
No requirements
1) Under certain temperature, use cup to check if there is no net leakage or mica migration. 2) Use 6mm electric strip and take-up device, and use 25mm to 75mm5. If necessary, it can be reduced to
Note: All materials are within the range of 3g/cm2 to 2. 4g/cm2. The resistance of the whole voltage when the foil is pressed is measured by the electric strength T
when the foil is pressed. The electric strength is kV/mm2
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