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Mechanical Industry Standard of the People's Republic of China
JB/T9555
1999-08-06
Wa Xian Ji Dong
2000-01-01
JB/T95551999
Non-standard This standard is a revision of ZBK15021-89 "Alkyd Enamel for Electrical Insulation" (originally n "0 CT 915l: 1975). This standard is consistent with ZBK15021-89 The main differences are as follows: 1. The titles of Chapters 1, 3 and 4 are modified according to GB/T1.1-1993, and the contents of Chapters 2 and 4.5 are standardized. 2. According to 2.2 of GB/T1981-1989, the viscosity measurement temperature in Table 2 is changed from "20±1'" to "23±2". 3. In ZBK15021 standard, due to a printing error, "No. 1 viscometer" should be changed to "No. 4 viscometer". 4. According to GB/1981, the sixth property "drying time" in Table 2 is changed to "film drying time": the ninth property "thermal elasticity" is changed to "elasticity": the tenth property "dielectric strength" is changed to "power frequency electrical strength"; the 13th property "resistance to dielectric liquid" is changed to "amplitude insulating liquid capability"; the test conditions of items 6, 10 and 11 are changed from "20±1℃" to *23±2℃", 5. The arc resistance test is changed to GB/T 1411. Regulations. This standard will replace ZBK15021-89 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Insulating Materials. The drafting unit of this standard: Xi'an Insulating Materials Factory. The drafter of this standard: Zhang Hong.
This standard was first issued in 1966, revised for the first time in 1980, revised for the second time on March 30, 1989, and revised for the third time in 1999.
This standard is entrusted to the National Technical Committee for Standardization of Insulating Materials for interpretation. I
JB/T95551999
ZBK1502189
This standard specifies the insulation materials for insulation materials. Models, requirements, test methods and inspection, packaging, marking, storage and transportation of alkyd enamels for electrical insulation. This standard applies to alkyd enamels for electrical insulation that are ground by adding desiccant, solvent and pigment to alkyd enamel. Cited standards
The provisions contained in the following standards constitute the provisions of this standard through citation in this standard. At the time of publication of the standard, the versions shown are valid. All standards are subject to revision, and the parties to this standard should explore the possibility of using the latest versions of the following standards. GE/T3081989
GB/T1411—1978
GB/T1723—1993
GB/T 1724—1989
GB/T 1981—1989
GB/T 3181—1995
Solid bearing steel ball
Test method for high voltage and low current intermittent arc resistance of solid electrical insulating materials. Determination method for viscosity of paint
Determination method for fineness of paint
Test method for solvent-containing insulating varnishes (neg[IEC60464—2:1989) Color marking of film
General rules for inspection, packaging, marking, storage and transportation of solvent-containing insulating varnishes GB/T 10579-1989
(negIEC60464—1:1976)
JB/T 2197—1996
3 Classification and naming
The classification, naming and model compilation methods of electrical insulation materials products shall comply with the provisions of B/T2197. The classification and naming of this product are shown in Table 1. Table 1
4 Requirements
Alkyd gray enamel paint
Alkyd air-dried gray enamel paint
Alkyd air-dried red enamel
The performance requirements of this product are shown in Table 2:
Wa Jiman 1999-08 -06
Application range
Applicable to the covering of motor and electrical wiring diagram
Applicable to the covering of motor stators and electrical wiring and the surface decoration of various parts. Applicable to the covering of motor stators and electrical wiring valves and the surface decoration of various parts. 2000-01-01
Appearance of paint film
Film color
Viscosity, No. 4 viscometer, 23+2°
Total solid content: 105 ±2℃, 2 h
Drying of film
: time
Hiding power
Film hardness
Shaft diameter 3mm
In 150 ±2#
1. Frequency electrical
Integrated resistance
Electrical emulsion
23 ± 2', 24 h
105 ± 2'. 3 h
23±2%
Immersed in water 241. Scale
23±2%
After immersion in water for 24 h
Resistance to insulating liquid
105±2%, in transformer oil, 24 h
Test method
5.1 Appearance
JB/T9555
The film should be smooth, glossy and shiny
003. B04. B0S
Perform according to the provisions of A2 in Appendix A of GB/T1981-1989. 5.2 Film color
Small and cracked
1o×to1
No cracking
2 1.0 × 108
No cracking
2 1.0 × 1010
3 1.0 × 10
The paint film should not dissolve, peel, wrinkle or swell. It should be determined by visual inspection and meet the requirements of Chapter 4 of GR/T3181-1995. 5.3 Viscosity
Measured according to 5.3 of GB/T1723-1993. 5.4 Volume content
Measured according to 2.3 of GBT 1981-1989. 5.5 Fineness
Measured according to GB/T1724.
5.6 Drying time of paint film
Measured according to 2.4 of GB/1981-1989. The thickness of the paint film is 0.025±0.0051mr11. 5.7 Hiding power
5.7.1 Apparatus and materials
JB/T95551999
a) Manual spray gun, paint gun or other equipment that can apply paint layer on glass plate. b) Glass plate: 120mm long, 90mm wide, 1.0~2.0mm thick. c) Balance: Sensitivity 0.0001g
d) Black and white grid paper: As shown in Figure 1, draw as follows. Use white drawing paper or white printing paper with a length of 120mm and a width of 901mm to mark 12 squares with a length of 30mm and a width of 30mm and apply ink on them in alternating order and let them dry. 8
Figure 1 Black and white grid paper
5.7.2 Procedure
Adjust the sample to the working viscosity, weigh the glass piece, and accurately weigh it to 0.0002B. Spray paint on one side in thin layers. After each spray, lay it flat on the black and white grid paper and observe it until the black and white grid is just invisible. Then wipe off the paint on the back and edge of the glass plate, and bake it at 105±2 to constant weight. Weigh the mass of the painted glass plate after baking, and accurately weigh it to 0.0002g. 5.7.3 Results
The hiding power of the dry paint film is calculated according to the following formula;
D-(m2 -mo) ×106
Wherein: D is hiding power, 9/m2;
m, is the mass of the board before the paint film is applied, gsm is the height of the paint film and the glass board after drying, gS is the area of the glass board, mn.
5.8 Fermentation membrane hardness
5.8.1 Instruments and materials
a) Pendulum hardness tester [Figure 2] consists of the following parts: brake handle 1, base 2, scale 3, rotating screw 4, weight 5, 3
JB/T95551999
Support rod 6, pendulum rod 7, plate 8, frame head connecting piece 10, steel ball 11, plumb bob 12, the pendulum rod can be fixed on the zero point by frame 9, frame 9 is tightly connected to connecting piece 10, the decay time of the probe can be adjusted by weight 5, rotating screw 4 can make the instrument horizontal (observation according to the plumb bob: the pendulum rod and its benzene parts weigh 120±1g in total, the length of the pendulum rod from the fulcrum to the tip of the pendulum rod is 500±1mm, the steel ball (fulcrum) should comply with GB/T 308 regulated technical requirements for steel balls with a nominal diameter of 8 mm; b) Stopwatch: graduation value 0.5 s:
5,8,2 Procedure
5.8.2.1 Preparation of paint film: Paint twice on one side of a glass plate with a length of 120 mm, a width of 90 mm, and a bank of 2~3 mm by pouring method, and the bank of the paint film is 0.02 +0.02 mm.
5.8.2.2 Calibration of pendulum hardness tester bZxz.net
The pendulum hardness tester should be calibrated before each use, and its "glass value" should be measured, that is, the time for the pendulum to swing from 5° to 2° on an unpainted glass plate. The "glass value" of the instrument should be 440±6s. If the "glass value" is not within the specified range, it should be adjusted to the specified range with a heavy hammer. The "glass value" should be measured according to 5.8.2.4. 5.8.2.3 The steel ball on the pendulum should be checked regularly. When the surface of the steel ball is found to be damaged, the contact point of the steel ball can be rotated: If the surface of the steel ball is worn to the point where it does not meet the requirements, a new ball should be replaced. Before each test, the steel ball should be scrubbed with solvent and wiped with clean gauze: 5.8.2.4 Place the painted glass plate on the platform of the instrument with the paint film facing up, place the fulcrum of the steel ball on the surface of the paint film, and move the pendulum to the zero point of the scale. Then lead the pendulum to the scale line at 5.5°. At this time, the steel ball should not move, and then put down the automatic handle to let the pendulum swing freely. When it swings to 5°, start the stopwatch immediately. When the swing amplitude reaches 2°, stop the stopwatch. 10
Figure 2 Pendulum type hardness meter
5.8.3 The hardness of the paint film shall be calculated according to the following formula:
Wherein: X——film hardness:
JB/T9555
The swing time of the pendulum on the paint film is 5-2°, s; "glass value", S.
The average value of the two tests shall be taken as the test result, and the two significant digits shall be taken. The difference between the two test values shall not exceed 5% of the average value. 5.9 Elasticity
Determine according to 3.1 of GB/T1981-1989. 5.10 Power frequency electrical socket
Connect to 3.5 of GB/T 198[-1989 for measurement of extension. 5.11 Volumetric conductivity
Determined according to 3.4 of GB/T 198[-1989. 5.12 Resistance to insulating liquids
Determined according to 3.3 of GB/T 1981-1989. 5.13 Arc resistance
Determined according to the provisions of GB/T 1411.
5.14 Paint film preparation conditions
Unless otherwise specified, the film sample should be prepared according to 3.4.2 of GB/T 1981-1989 and dried according to the following conditions: a) 1320: 105±2'c, first pass drying for 3h second pass drying for 3h b) 1321.1322: 23±29, first pass drying for 24h, second pass drying for 20h. Note: In order to shorten the product inspection cycle, 1321, 1322 may be dried at 23±2℃ for 2h and then dried at 60±2℃ for 5h instead of drying at 23±2℃ for 120h during factory inspection or acceptance. 6 Inspection rules
6.1 The factory inspection performance is 1, 2, 3, 4, 5, 6, 9, 10 (1) and 11 (1) in Table 2. 6.2 Others shall comply with the provisions of Chapter 2 of GB/T 10579-1989. Packaging, marking, storage and transportation
shall comply with the provisions of Chapters 3 and 4 of GB/T 10579-1989. 5
JB/T9555
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