Some standard content:
Machinery Industry Standard of the People's Republic of China
JB/T78431999
Phone Planer
Published on August 6, 1999
National Bureau of Machinery Industry
Implemented on January 1, 2000
JB/T 7843-1999
This standard is a revision of JB/T7843-1995 "Safety of Hand-held Electric Tools (idtIEC60745-2-10:1982)". This standard complies with GB3883.10-1991 "Safety of Hand-held Electric Tools (idtIEC60745-2-10:1982) Part 2: Special Requirements for Electric Planers"
This standard adds 4.5.2, 4.5.3, 5.4, 55.5, and modifies 2 and 8.1.
This standard is prepared in accordance with GB/T1.11993 Guidelines for Standardization Work Unit 1: Drafting and Expression Rules of Standards Basic Provisions for the Preparation of Standards.
This standard replaces JB/T7843-1995 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Electric Tools. Drafting of this standard: Shanghai Electric Tool Research Institute is responsible for drafting. The main drafter of this standard: Liu Jingchun.
This standard was first formulated in 1987 and revised for the first time in 1995. Part 1: Standards
1 Scope
Mechanical Industry Standard of the People's Republic of China
JB/T7843-1999
Replaces JB/T7843-95
This standard specifies the basic parameters, types, technical requirements, test methods and inspection rules and requirements for marking and packaging of electric planers. This standard applies to AC/DC dual-purpose electric planers and single-phase series-excited electric planers (hereinafter referred to as electric planers) used for planing wood (along the fiber direction or cross-fiber direction) under normal environmental conditions. Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 755-1987
GB 2099.1—1996
GB 3883.10—1991
GB4343-1995
GB/T4583—1995
GB 5013.4—1997
GB5023.5—1997
GB/T 9088—1988
GB17625.1-1998
GB17625.2—1999
3 Basic parameters and types
Basic technical requirements for rotating electrical machines
Plugs and sockets for household and similar purposes
(eqvIEC60884:1994)
Safety of hand-held electric tools
Part 1: General requirements
Part 2
Particular requirements for electric planers
(idtIEC60745—2—10:1982)
Measurement methods and allowable values of radio interference characteristics of electric and heating appliances, electric tools and similar electrical appliances for household and similar purposes (eqvC.1.SPRNO.14:1993)Measurement of noise from electric tools
Engineering method
Rubber insulated flexible cables with rated voltage of 450/750V and below (idtIEC60245:1994)
Part 4: Flexible cords and flexible cables
Polyvinyl chloride insulated cables with rated voltage of 450/750V and below (idtIEC60227:1993)
Part 5: Flexible electric wires (flexible cords)
Model compilation method for electric tools
Limits of harmonic currents emitted by low-voltage electrical and electronic equipment (input current per phase of equipment ≤16A) (idtIEC61000-3-2:1995)
Voltage fluctuations and electromagnetic compatibility generated by equipment with rated current not exceeding 16A in low-voltage power supply systems
Flicker limits (idtIEC61000-3-3:1994) 1 The basic parameters of electric creation shall comply with the provisions of Table 1. 3.1
Approved by the State Machinery Industry Bureau on August 6, 1999 and implemented on January 1, 2000
Cutting width
80(82)
JB/T 7843-1999
Cutting depth
Basic parameters
Rated output power
≥320
≥420
≥420
The model of electric planer shall comply with the provisions of GB/T9088, and its meaning is as follows: MOB-OO-Ox
Rated torque
Maximum cutting width×maximum cutting depth (specification code) Design serial number
Design unit code
Electric planer (product code)
Power supply category code
Forestry category (major category code)
Technical requirements
General requirements
4.1.1 Electric planers shall be manufactured according to the drawings and technical documents approved by the prescribed procedures and comply with the provisions of this standard. 4.1.2 The electric planer should be able to operate at rated speed under the following environmental conditions: a) The altitude should not exceed 1000m;
b) The ambient air temperature should not exceed 40℃;
c) The relative humidity of the air should not exceed 90% (25℃); d) The air should not contain flammable, explosive and corrosive gases and dust. 4.1.3 The power supply conditions applicable to the electric planer are:
a) The single-phase series-excited electric planer should be able to operate at rated speed under AC power supply with actual sine wave voltage and rated frequency value; b) The AC/DC dual-purpose electric planer should be able to operate at rated speed under single-phase AC power supply with actual sine wave voltage and rated frequency value.
The rated voltage and rated frequency of the electric planer are: a) Single-phase AC rated voltage: 220, 110, 42, 36V; b) DC rated voltage: 220, 110V; c) Single-phase AC rated frequency: 50Hz.
4.2 Safety of electric planers
4.2.1 With regard to the safety of electric planers, except for the clauses that have been supplemented and improved in this standard, all other provisions shall comply with the provisions of GB3883.10. 4. 2. 2
The planer blade of an electric planer shall be reliably fixed on the blade shaft. 3 The performance of the plug of an electric planer shall comply with the provisions of GB2099.1. 4.2.3
The plug of a Class 1 electric planer shall be made integral with its power cord, and its insulation shall be able to withstand a voltage withstand test with a waveform of an actual sine wave, a frequency of 50Hz, a voltage of 3750V, and a duration of 1min without breakdown or surface flashover. 2
JB/T7843-1999
4.2.4 The power cord of the electric planer shall comply with the provisions of GB5013.4 and GB5023.5, or use a soft cable or cord with performance not lower than GB5013.4 and GB5023.5.
: Appearance quality of the electric planer
The plastic shell of the electric planer shall not have serious defects such as bubbles, cracks, obvious burn spots and cold insulation. 4.3.1
The metal shell of the electric planer shall have no obvious defects. The coating shall be uniform without delamination and peeling. 4.3.2
The nameplate of the electric planer shall be firmly placed on the shell of the electric planer without curling. Noise
The average value of the no-load disc sound pressure level (A-weighted) of the electric planer measured at a spherical surface 1000mm away from the center of the electric planer shall not be greater than the allowable value specified in Table 2.
Electric planer specifications
(planing width×planing depth)
Noise value
Noise allowable value
90(100)
92(102)
Note: When measuring the noise value of an electric planer in a reverberation chamber, its sound power level (A-weighted) should not be greater than the allowable value specified in the brackets in the table. 4.5
Electromagnetic compatibility
Radio and television interference level
100×2wwW.bzxz.Net
a) The continuous interference voltage level of the phase or neutral line to the ground measured in the frequency range of 0.15～30MHz shall not exceed the allowable value specified in Table 3.
0.15~0. 35
>0.35~5.00
>5. 00~ 30.00
Continuous interference voltage
Interference voltage
dB(μV)
Decreases linearly with the logarithm of frequency
b) The continuous interference power level values radiated by the power line and absorbed by the absorbing clamp measured in the frequency range of 30~300MHz shall not exceed the permissible values specified in Table 4.
Table·4
30~300
Harmonic current
Continuous interference power
Interference power
dB(PW)
Increases linearly with frequency 45 to 55
a) The steady-state harmonic current of the electric planer shall not exceed the limits specified in Table 5. 3
Odd harmonics
Even harmonics
JB/T7843-1999
Steady-state harmonic current limit
Harmonic order
15≤n≤39
8≤≤40
Maximum allowable harmonic current
0.225×15/n
0.345X8/n
b) For 2nd to 10th even harmonics and 3rd to 19th odd harmonics, within any 2.5min observation period, the transient harmonic current value allowed not exceeding 15s is 1.5 times the steady-state harmonic current limit specified in Table 5. 4.5.3 Voltage fluctuation and flicker
When the electric planer is connected to the low-voltage power grid, the voltage fluctuation and flicker caused by it shall comply with the following provisions: P. value shall not be greater than 1.0;
P value shall not be greater than 0.65;
steady-state relative voltage change d shall not exceed 3%;
relative voltage change maximum value dmx shall not exceed 4%; voltage change characteristic value d(t) shall not exceed 3% in 300ms. If the voltage change is caused by a manual switch or the frequency is less than once per hour, P and P# shall not be assessed. The steady-state relative voltage change value de, the relative voltage change maximum value dmx, and the voltage change characteristic value d(t) shall be multiplied by a coefficient of 1.33. 4.6
Commutation spark
At rated voltage, the spark under the brush of the electric planer at no load and rated load shall not be greater than Level 2 specified in GB/T755-1987. 4.7
Input power and current
4.7.1 The measured input power value of the electric planer at rated voltage and rated load shall not exceed 115% of the rated input power value indicated on the nameplate.
4.7.2 If the rated current value is marked on the nameplate of the electric planer, the measured current value at rated load shall not exceed 115% of the rated current value indicated on the nameplate.
4.8 Temperature rise
At rated load, the temperature rise of the electric planer shall not exceed the limit specified in Table 6. 4
E-woven insulated winding
B-class insulated winding
F-class insulated winding
Casing not held during use
JB/T7843-1999
Handles, buttons and similar parts held continuously during normal use: metal
Temperature rise limit
Note: When the altitude of the test site or the place of use is different from the specified environmental conditions, the revision of the winding temperature rise limit shall be carried out in accordance with the provisions of GB/T755. Overtorque
After the electric planer is subjected to an overtorque test of 1.5 times the rated torque for 15s in a hot state, the electric planer shall be able to operate normally. 4.10
Power cord length
The length of the flexible cable or cord from the cable entry hole to the plug (excluding the pins) shall be not less than 3m. Rust prevention
The screws shall be surface treated, and the steel brush springs, grounding screws, washers and other parts shall be able to withstand the rust prevention test. Test method
Appearance inspection
The appearance quality of the electric planer shall be inspected by observation and manual test. The inspection results shall comply with the provisions of 4.3.
Noise test
The noise test of the electric planer shall be carried out in accordance with the provisions of GB/T4583. The measurement results shall comply with the provisions of 4.4.
5.3 Measurement of radio and television interference levels The measurement of radio and television interference levels of the electric planer shall be carried out in accordance with the provisions of GB4343. During the measurement, the electric planer shall run continuously without load with the planer. The test results shall comply with the provisions of 4.5.1.
Harmonic current measurement
The harmonic current measurement of the electric planer shall be carried out in accordance with the provisions of GB17625.1. During the measurement, the electric planer shall run continuously without load with the planer. The measurement results shall comply with the provisions of 4.5.2.
5.5 Measurement of voltage fluctuation and flicker
The voltage fluctuation and flicker measurement of the electric planer shall be carried out in accordance with the provisions of GB17625.2. During the measurement, the electric planer shall be operated continuously without load with the planer cutter. The measurement results shall comply with the provisions of 4.5.3.
Inspection of commutation sparks
The electric planer shall be operated without load for 15 minutes at rated voltage. When the electric planer is without load and during the test of 5.8, the sparks under the brush shall be observed. The inspection results shall comply with the provisions of 4.6.
5.7 Measurement of input power, current and working parameters Under rated voltage, the torque applied to the cutter shaft shall reach the minimum value of the rated torque specified in Table 1. If the output power has not reached the minimum value of the rated output power specified in Table 1 at this time, the load of the electric planer shall continue to be increased until the output power of the electric planer reaches this value (when the specified output power and rated torque are greater than the minimum value of Table 1, the specified rated output power or rated torque shall be loaded in the same way). After the electric planer has been running for 15 minutes, measure the input power, current, speed and output power of the electric planer. 5
The inspection results shall comply with the provisions of 3.1 and 4.7. 5.8 Temperature rise test
5.8.1 Applied load
JB/T7843-1999
The electric planer applies torque according to the load determined in 5.7 at rated voltage. If the input power at this time is less than the rated input power indicated on the nameplate, increase the torque so that the input power is equal to the rated input power indicated on the nameplate, and use this torque as the load for the electric planer temperature rise test. 5.8.2 Running time
Under the conditions specified in 5.8.1, run continuously until the temperature rise of each part of the electric planer reaches a stable state. 5.8.3 Method for measuring temperature rise
After the temperature rise of each part of the electric planer reaches a stable state, the temperature rise of the winding is measured by the resistance method, and the temperature rise of other parts is measured by the thermometer method. The test results shall comply with the provisions of 4.8.
5.9 Over-torque test
When the temperature rise of the electric planer reaches a stable state, increase the torque at the rated voltage so that the applied torque reaches 1.5 times the torque determined in 5.7. The test lasts for 15s.
The test results shall comply with the provisions of 4.9.
Withstand voltage test of Class I electric planer plug
Attach a metal box to the handle on the outer surface of the plug, and then apply a test voltage of 3750V between the pins and the metal box for 1min. The test results shall comply with the provisions of 4.2.3.
5.11 Check on the length of the power cord
Measure the length of the flexible cable from the power cord inlet to the plug (excluding the pins) on the electric planer, and check the specifications of the power cord. The inspection results shall comply with the provisions of 4.10 and 4.2.3. 5.12 Other test methods
Other test methods not specified in this standard shall be carried out in accordance with the corresponding provisions of GB3883.10. 6 Inspection rules
6.1 Each electric planer must be tested and qualified by the quality management department before it can be shipped out of the factory, and the product quality certification documents shall be attached when it leaves the factory. 6.2 The items specified in this standard are type test items. Among them, those marked with "*" are inspection test items; items marked with "**" are carried out after the product is finalized. If the structure and materials have not changed, they will not be carried out in the subsequent type tests. Appearance inspection*
Marking inspection*
Electric shock protection inspection**
Starting test
Noise test
Radio and television interference level measurement
Harmonic current measurement
Voltage fluctuation and flicker measurement
Commutation spark inspection*
Input power, current and working parameter measurementTemperature rise test
Over-torque test
Leakage current measurement
Moisture resistance test
Insulation resistance measurement
Withstand voltage test*
Durability test
Abnormal operation test
Mechanical hazard inspection**
Mechanical strength inspection
Grounding device inspection
Structural inspection**
Internal wiring inspection
Component test**
Power cord length inspection
Power connection inspection
Cable or cord pulling force and torque test
Flexible cable or cord and sheath bending test**External wire terminal inspection**
Screw and connecting parts inspection**
JB/T 7843—1999
Creep distance, electrical clearance and insulation penetration distance inspectionHeat resistance, flame resistance and anti-tracking test**Rust resistance test
6.3 Inspection method
6.3.1 The test shall be carried out in the order of the test items listed in 6.2. 6.3.2 After the no-load reversing spark inspection, the planer shall be dismantled before the remaining tests. During the test, if the transmission belt is damaged, it shall be replaced in time.
The test items shall be carried out on the same prototype and shall pass all the tests. If it is necessary to dismantle the prototype for relevant tests, another sample can be added.
7 Marking and packaging
7.1 The nameplate of the electric planer shall be marked with the following items: a) Product name (electric planer);
b) Electric planer model;
c) Rated voltage, V;
d) Power supply type symbol;
e) Rated input power, W; or rated current, A; f) No-load speed of the cutter shaft, r/min;
g) Maximum cutting width, mm;
h) Maximum planing depth, mm;
i) Class 1 structural symbol (only marked on Class II electric planers); j) Moisture resistance grade symbol (only marked when required); k) Manufacturer's name or trademark;
1) Factory batch code.
7.2 The direction of rotation of the cutter shaft shall be marked on the housing or belt cover with a protruding or concave arrow, or other clear and durable means of indication. 7.3 Each electric planer shall be accompanied by the following documents when it leaves the factory: 7.3.1 Product certificate.
7.3.2 Instructions for use and maintenance.
a) Relevant description of the characteristics and uses of this model of electric planer; 7
JB/T7843-1999
b) There shall be an independent chapter to explain the safety technical requirements for the use of the electric planer, the precautions for operation and use, the possible dangers and the corresponding preventive measures;
c) Relevant maintenance matters.
7.4 The packaging, transportation and storage of the electric planer shall comply with relevant regulations. 8
Warranty period and accessories
Warranty period
If the user follows the provisions of the instructions for use and maintenance of the electric planer manufacturer and uses, transports and stores the electric planer correctly, the manufacturer shall repair or replace the electric planer free of charge within the warranty period specified by the manufacturer if it is damaged or fails to work normally due to poor manufacturing quality.
8.2 Accessories
When the electric planer leaves the factory, it should be accompanied by special tools for disassembling and assembling the planer blade. 8
People's Republic of China
Mechanical Industry Standard
JB/T 78431999
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Word count xxX,xXx
Format 880×1230
Print Sheet X/X
Edition X, XX, 19XX
Printing Edition X, XX, 19XX
Print Quantity 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn66618
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.