Some standard content:
TDC: 629. 12. 01
National Standard of the People's Republic of China
GB/T 4300- 94
General specifications for marine gyrocompasses1994-07-19Promulgated by the State Technical Supervision Bureau
Implemented on 1995-04-01
National Standard of the People's Republic of China
General specifications for marine gyrocompasses
General specifications for marine gyrocompassesRefer to British Standard S08726-87 Marine gyrocompassesContents and applicable scope
This standard specifies the technical requirements, test conditions and control rules for over-limit gyrocompasses. This standard applies to light-limited compasses (hereinafter referred to as compasses). ·2 Reference standards CB243-89 Test specification for electric and electronic products GB4208-84 Classification of external protection levels G11 G250-88 General requirements for electromagnetic fields of electrical and electronic equipment GB/T 12267--DO General requirements for shipbuilding and navigation equipment Test methods GB/T 13381--9 Technical conditions for packaging of electromechanical products C/T 2235--83 Magnetic positioning on service 3 Terminology 3.1 Gyrocompass yrncmupix Using a gyrocompass as a sensor, it can show a complete and accurate measurement 3.2 True direction utheding GB/T 4300---94 53—84
The true heading is the horizontal angle between the vertical plane passing through the meridian and the horizontal plane passing through the bow and stern of the ship. When the bow is adjusted from true north (H) to the bow, the high heading can be regarded as the actual heading of the compass. When the zero longitude is equipped with an adjustable compass line, it is also corrected according to the local latitude. 3.3 Stable settled
must be at a horizontal and stationary state. If the three heading values read in reverse every 30 minutes on the base are all within the range of 0.001, the compass can be stabilized.
3.4 Point heading acttle2oirheading
When the compass is stabilized according to the definition of 3.3, the arithmetic mean of the ten heading readings taken every 20 mir. 3.5 Stable point error teintrr
The difference between the fixed point heading and the re-heading.
3.6 Fast difference crror
The difference between the observed cumulative longitude and the heading of the critical point 3.7 Clearance points besringrepeercampasg A device that can reproduce the heading of the main compass far away from the main compass and can obtain the government's daily standard direction, approved by the State Technical Supervision and Administration Commission on July 19, 1995
199504-01 implementation
GB/T4300-94
3.8 Heading repcatercompes A device that can reproduce the heading of the main compass far away from the main compass. 3.9 Compass scale compis card
select the new measured sub-line and the old compass dial. 3.10 Latitude error Jazitudeerrar
; the difference in heading related to latitude caused by the use of sub-vertical error, its size and sign depend on the latitude. 3.11 Speed error s1edrrur
the difference in the zero axis from true north caused by the speed of the aerial photograph, its size and sign depend on the ship's latitude, heading and the node it is in.
3.12 Longitude line luhberlire
a mark engraved on the accumulator as a compass heading. 3.13 Compass mas1er cnmpasx
the main instrument unit that determines the heading time in the compass system and provides heading information to all important headings and other navigation equipment. 3-14 Compass szorsbytable
-A kind of equipment used to simulate the motion of a ship, which can coordinate the free swaying of three axes: 4 Technical requirements
The performance indicators shall be evaluated within the range of 0\. 4.1 Structural design requirements
4.1.1 The structural design of the compass shall be safe, reliable, and easy to install, operate and maintain. 4.1:2 It shall be able to work continuously under the environmental conditions specified in 4.11, 1.12 and 4.13. 4.1.3 The compass scale shall be divided into 1/10th of a degree increments, with the error of the increments being less than 0.2. The scale shall be marked with a half-inch scale mark from 0.01 to 3.60 degrees clockwise. 4.1.4 The longitude and latitude shall be adequately illuminated and equipped with a dimming device to enable the main scale to be clearly visible at any time. 4.1.5 Both the compass and the azimuth shall have a marking indicating the forward direction. In order to allow the main longitude and azimuth to be aligned with the center of the compass, the offset of the compass shall be marked with a convenient identification mark. It is permitted to move the main compass to correct the compass installation error. If the identification mark (or point) and the uncorrected compass reference line are not in the same plane, the horizontal plane between them shall be clearly marked. tt||4.1.6 The compass should be able to effectively indicate the error and reverse error, or use a chart or table to verify the error. 4.7 The compass should have at least one power supply and automatic alarm. 4.1.8 There should be measures to prevent over-pressure, over-current, dryness or accidental power supply. 4.1.9 The screen, chain and other materials in the compass can withstand the influence of pumps and bacteria. The technical requirements and product standards stipulate: 4.1.10 The compass should be able to provide the first information for other equipment. 4-1-11 The small position compass should be able to install various azimuth dials; and there should be a gimbal that can keep the dial level during the ship's movement: The position compass on the large deck should have waterproof performance, and the outer shell protection should be TPX5 in GB4208, 4. 1. 12
Appearance quality
The outer surface of the compass should be flat, without scratches, deformation, stain, and the reading surface should be smooth and consistent, without warping or falling off: the signs and station signs should be clear and easy to identify: c
The firmware should be loose, the positioning should be correctly positioned, and the moving parts should work smoothly. .d.
4.2Total settling time
The settling time on the horizontal static seat and the moving seat should be less than 2. 2
4.3Steady point difference
GR/T 4306-94
The error of the heading stable point in any set should be ±10°. X is the latitude of the instrument: the root mean square value of the difference between the heading reading and the heading of the stable point should be less than 0.25×sHr. 4.4 Repeatability of the stable point error
The repeatability of the error between the heading reading and the heading of the stable point should be ±25°4.5 Steering error
When the compass is 5~15°, the maximum amplitude of the horizontal and vertical swing is 2\10° and 5\10° respectively, and the rate of motion is not more than 1m/a\, the error of the compass should be ±1×se. 1.6 Motion error of the main point (the motion error of the main point) The accumulated dynamic error is installed on the off-point motion test bench. The dynamic direction of the test bench is still within the point direction, that is, 45° and 225\ in the serial direction or: 335315 in the extension direction). The deviation is not more than ±3°. The maximum acceleration of the horizontal motion component is 1.0=0.1m/s, the period is 55, the duration is 2h, and the full-point motion error should be 1\×secp:4. The set speed is 2ukn, and the steady-state error after correcting the speed should be .25\Xec4.B. The maneuvering plan of speed change
The speed change starts from 20k and should be -.2°. 4.9 Maneuvering error of heading change 185°
Speed is 20k, the error caused by rapid change of 180° should be 3°4.10 Error caused by power supply voltage and frequency change When the voltage changes by ±10% and the lock rate changes by +5, the error caused should be 4.11 Error caused by temperature change
When the multi-channel changes within the temperature range, the error caused becomes ±\. 4.12 Error caused by thermal environment
When the multi-channel is subjected to the thermal environment conditions of temperature 43 and relative humidity 93%~%, the error caused should be 1°. 4.13 Error caused by vibration
3. The error caused by the compass after being subjected to the vibration test with the frequency specified in Table 1 should be +1x58%. b. The error caused by other equipment except the main compass after being subjected to the frequency and vibration test run specified in Table 2 should be ±1Xaet
Special single Hs
Institute, mm
Overtime.m/g
4.14 Matching accuracy of main and sub-compass
13.2---t0
After the main compass is connected to the rated load, the matching accuracy of each sub-compass with the main compass becomes ±0.5\.4.15 Error caused by magnetic field interference
The error caused by the compass after being subjected to an average field of 80A/m in the north, east and vertical directions respectively should be 3
11Xecs.
4.16 The electrical interference generated by the compass during operation shall not cause any interference to other equipment. 4.17 The noise level shall not be greater than EA. The cold insulation resistance of the compass shall not be less than: b. The insulation resistance of the compass shall not be less than 5M. The cooling insulation resistance of the compass shall not be less than 1M. 4.19 In the weak current section, the insulation resistance between the independent circuit of each device and the machine shall comply with the provisions of Table 3 of the technical specifications. There shall be no breakdown, sparks or electric shock when the test is carried out under standard atmospheric conditions. The test shall be carried out in accordance with the product standard.
The test circuit works properly.
236 ~5
5 Test method
5.1. Stable time test
5.1.1 Test time of dielectric strength test on hydrostatic base
The main compass is installed on hydrostatic base, power is supplied, start the compass at 35° or 39° out of the meridian plane, the time from starting to the second stable reading is the stable time on the base, it shall meet the requirements of 4.2.
5.1.2 Stable time test on dynamic base
The main compass is installed on the base: make its datum and the base bearing fit together, the base performs simple harmonic motion according to the parameters in Table 4, and then the dynamic cumulative effect is accumulated, the time from starting to the first stable reading is the stable time on the dynamic base, it shall meet the requirements of 4.2.
When the swing table is almost static, record the number of times the stable point can be stretched in the shortest time, and then update it as soon as possible according to the regulations to make the swing table perform simple fat movement.
5.2 Stability point error test
It is a large amplitude
Select the large-scale standard
GB/I 4300-54
After the stability is completed according to the provisions of 3.3, the stability point is calculated according to 3.5, and its value should meet the requirements of 4.3. The reading of the film can reduce the stability point and the residual value should meet the requirements of 4.3. 5.3 Repeatability test of stability point error Make the gyro to the noon of the axis 35° or slightly greater than 30°, start the stability point after the stability, and calculate the total direction of the special stability point. d, then make the compass burn up the long direction of the tide 3G or 30 degrees for the second time, and find the stable point direction after it stabilizes: close the compass at 12K rate for d, and then quickly damage the main axis and raise it to 30 degrees, and then move it for the second time. After the stability point is determined, the three stable points are obtained, and the difference between any two fixed points should meet the requirements of Article 4. If this test is carried out after Article 5.2, the stable point obtained in the record of 5.2 can be used as the first stable point direction required for this test, provided that the time between the two tests of the compass is greater than 12h. 5.1 Transmission difference test
The main compass is installed on the horizontal platform with the center axis of the platform within 1 degree of the center surface (cable) of the soil, and the main meridian base line is within 1 degree of the interception of the platform. After starting and verifying, find out the heading of the stable point, then start the telescope, make it parallel to the platform and carry out the following simple movement,
Summary: the maximum amplitude is 20±2°, the period is 7014: longitudinal amplitude: or the amplitude is 10±1, the same period is 6±1% and the maximum amplitude is 3.1, the completion period is 151! Yuan, after 25m, stop the proposed movement, make the four axes reach the same time of the test, immediately record the heading data, turn the telescope to make the longitudinal heading 45±1°, SC+1315+1, repeat the World Bank comparison test: before each test, the stable heading of the seam should be determined.
The difference between the heading at the end of each movement and the heading of the stable point before the movement shall be recorded as the error caused by the movement.
When conducting the above-mentioned test, the error caused by the movement shall meet the requirements of Article 4.5. When conducting this test: the horizontal speed of the swing table shall not be greater than 1Ⅱ/...5.5 cycle motion error
The horizontal movement direction of the full-point sonar test device shall be at the end point. The installation error shall not exceed 3\. The maximum speed of the device is 1.01c.1/s. The main device is installed on the upper device, starts the generator, and finds the stable heading after stabilization, and then automatically raises the device. The difference between the accumulated heading learned during the continuous 2-hour movement and the stable point unidirectional difference before the test shall meet the requirements of Article 4.6. The heading recorded by the motion method is not recorded when the heading is equal to or greater than the leading rate of the above motion. The heading can change by 5.6 degrees according to the steady-state reading error test after verification
This test channel is used for the multi-compass equipped with speed and flight error correction equipment to be installed on a horizontal static base. The color longitude and latitude line is aligned with the vehicle surface (line) to start the longitude and latitude, and the fixed point direction is determined. The k speed correction is used to find the compass, and the longitude and latitude are mutually renewed. The water heats up the fixed point direction. The difference between the steady point direction recorded by the running fixed point and the theoretical value of the local purity correction is the north teaching, and the difference should meet the requirements of 4.7. The theoretical value of the multi-compass speed error in the direction of the speed is::
Where: V—speed error, knr
V—speed error, knr
V—local latitude ...
5.7 Maneuvering error test for speed change
The ship should sail along the north-south direction at a speed of about 30 minutes, then change the speed by 20kn within 2-10mis, and maintain straight sailing. Within 25min after the speed change, select and read the azimuth or the calibrated azimuth, and the error of the measured time reading should be less than 1.2. The difference between each measured azimuth and the calibrated azimuth should be calculated, and all should meet the requirements of 4.8. Before and after the speed change, the speed error of the compass is allowed to be corrected. 5.B Maneuvering error test for course change 18C: The ship should sail along the north-south direction at a speed of 27kz for 30min, then sail in the opposite direction at full right speed of 283\, and maintain the original speed. Continuously measure the selected direction or position of celestial body within 25min. The basic numerical error should be less than F. The difference between the measured direction and the calibrated direction should meet the requirements of Article 1.9.
5.9 Test for error adjustment caused by power supply frequency change 5.9.1 Test for frequency change
After starting the compass, find the heading of the stable point and measure the power supply voltage to 1D% higher than the rated value. Record a heading every 20m within 3 hours. Then adjust the power supply voltage to 1C% higher than the rated value. Record the heading every 20min within 3h. The recorded heading and the original fixed point heading should meet the requirements of Article 4.10. 5.9.2 Frequency change test
After starting the compass and warming it up, find the heading of the fixed point, adjust the power frequency to 5 times higher than the rated signal, and record the heading every 2 times within 3 hours; then reduce the power frequency to 5% lower than the rated value, and record the heading every 20 minutes within 3 hours. The difference between the recorded heading and the original stable point should meet the requirements of Article 1D. 5. Error test caused by accuracy change
In a test box (test box) with normal actual temperature, quickly find the heading of the stable point. After the test, raise the humidity in the box to 4±2℃, keep it moist for 3 hours, and record the heading reading at the end. Then reduce the temperature to 0±2℃ and keep it moist for 3 hours. At the end, record the heading reading. The difference between the two recorded headings and the heading of the stable point should meet the requirements of Article 4.1. The temperature change rate of the box should not exceed 45/h.
5.11 Error test in hot environment
Place the compass in a test box (room) with normal room temperature and normal humidity, turn on the compass, and find the heading of the stable point after total adjustment: then let the box be heated to 402 for 3±1.5 hours, and the relative humidity reach 95%, and then keep warm and moist for 3 hours, and record the heading. The difference between the heading at this time and the heading of the stable point should meet the requirements of 4.12. At the end of the test, turn off the compass and use a 503V megohmmeter to measure the conductive part of the power supply (including the zero voltage of the printed circuit board).For the green electricity of the milky white, the virtual effect meets the requirements of 4.18.c. 5.12 Error test caused by vibration 5-12.1 Main compass vibration test During the whole test, the compass line is 301 meters below the meridian. The compass should be tested for vibration in the following three directions: horizontal vibration of the meridian plane (line) 31 ± 1, horizontal vibration center of the line (1 ± 1), vertical vibration, When conducting vibration test in each direction, wait for the fixed point to be determined, and then start to report at the excitation frequency in Table 1. Keep the corresponding amplitude for 25 seconds each time. At the end of each test, verify the reading of the next direction. The difference between the recorded forward direction and the stable point should meet the requirements of 4. 23.2 requires that
can be used to remove or reduce the electromagnetic field that may have an impact on the compass performance. 5.12.2 Except for the main compass, the other equipment shall be placed on the moving parts in their normal working positions and connected to the normal electrical circuits. Start the test and find the stable point. The equipment on the moving platform shall be subjected to a direct vibration test with a rate of 1 times the rated value/certified according to the range in Table 2. The error is 10x, each test rate is less than 25min, the equipment under test shall repeat the above tests once in two directions perpendicular to the cabinet on the horizontal plane, there shall be no gas leakage or mechanical failure in each stage of the test, at the end of each stage, the directions of the indicator tube shall be recorded, and the differences between the recorded headings and the forward directions of the stable point shall meet the requirements of Article 4.13.b.
5.13: Speed test of main and sub compasses
This test is applicable to multi-compasses with sub compasses. 5.13.1 The main zero meridian is placed on a horizontal turntable. The negative pole of the sub compass must be rated. The sub compass wire should be well matched with the main compass. The turntable should rotate at a speed of no less than 5/100. During the rotation, the compass (or turntable) dial should be marked. Every time it rotates left and right, the value of the main and sub compasses should be recorded. This should be 12 times in total. The difference between the first readings of the upper and lower compasses should approximately meet the requirements of 4.14. 5.13.2 When the azimuth compass on the exposed plate is used for the 51% test, the upper azimuth compass shall be placed in the temperature box under the conditions of -22±3℃ and +603 respectively, and kept warm for 2 hours. The first reading of the azimuth compass obtained by the observation case at the heating rate shall be reported continuously, and the difference between the first reading of the main azimuth compass and the first reading of the main azimuth compass shall meet the requirements of 4.14. 5.14 Error test caused by magnetic field F
The main reference line must be within 100 years. Start the compass under the working conditions. After stabilization, find the stable point. Then, take the north-south force direction as the horizontal field strength A/m, and make the compass stabilize again. The difference between the heading of the stable point obtained and the heading of the original fixed point should meet the requirements of Article 4.15. According to the above method, test once in the east and west directions and the required true direction respectively. 5.15 Compatibility test
or these methods are recorded in Table A) of GB10250 and the corresponding test items are carried out according to the assessment items specified in the preparation period. The test results shall comply with the requirements of 4.16.
5.15 Frequency test
The noise test is only for the main light and its accessories installed in the cabin. The test method shall be carried out in accordance with Article 15.5 of (B12267). The sound level shall comply with Article 4.17. 5.17 Insulation resistance measurement
5.17.1 Use 51V megohmmeter to measure the insulation resistance of the cold and active insulation part (not including the whole circuit of the amplifier printed board, etc.) , the insulation voltage of the cable shall meet the requirements of 4 and 18.
5.17.2 The hot insulation voltage attached
is turned off after the thermal equilibrium is reached, and the 500V ohmmeter is used to measure the base part, not including the amplifier to the board, etc.), and the insulation voltage of the machine shall meet the requirements of 4:1%b. 5-17.3 The measurement method of the hot insulation voltage E
has been specified in Article 5.11
5.18 The cumulative waterproof test| |tt||The test position should be tested by the test method in accordance with GB12267 14.5. The test load should be adjusted according to the requirements of outdoor protection level 4.1.11.
5.19 Insulation dielectric strength test
Use special test equipment, according to the working voltage of each independent circuit of the compass, measure the insulation strength between the remaining circuits and the casing. The capacity is 1kVA, the time is 1min, and the result should meet the requirements of 4.19. 5.20 The test of the compass, inlay parts and parts of the image material shall be carried out in accordance with the provisions of GB2423.16 for 25h. The test shall meet the requirements of Article 4.1.9. 5-21 Salt spray test The salt spray test of the compass parts shall be carried out in accordance with the provisions of GB2123.17 for 48h. The result shall meet the requirements of Article 4.1. 5.22 Appearance quality inspection GR/T 43C0-94 The appearance quality of the received products shall be inspected once a month, and the result shall meet the requirements of Article 4.1. 6 Inspection plan The inspection places to be inspected are factory inspection and required inspection. 6.1 Inspection 6.1-1 Inspection 6.1.2 Inspection items 5.
I set time
Total set point error
Test items
The complex nature of the set point setting
Bi Peng Wen Rong
Point moving reading
Fast state error of rapid change correction
·The machine error of the return to the north
! ! The maneuvering error of the bottom change of 1 hour*
The special blue caused by the change of source pressure and rate
The real change caused the fast pad
The error caused by the golden environment
Analysis of the error caused by
Main. The four-way distribution station
The correct meat Lai Qi
Technical instructions
Test method
5-13-2
The lower blood teaching
The world standard comparison
The standard paint resistance
Test item F
Small position anti-corrosion waterproof
The first loss sequence
Standard test
CB/T 4300--94
Continued Table 5
6.2.1 Type qualification! Only when one of the following is said, the trial production of the product is finalized; when the type is approved!
Test method
5.17,5:7. +
Output inspection
When the product design, process or materials are significantly changed and have a tangible impact on the product performance: d Although the production volume is changed, the annual vehicle tour is one drink, 6.2.2 A single unit should be selected from the products that have passed the factory inspection for type inspection: 6-2.3 Type inspection page 5:
Type tire
6-2.4 "During the inspection process, if there is any item that is not self-contained, it is allowed to be handled in the original area, and the new unit should be measured after the failure. Carry out the test of this item and the test related to this item: after passing the test, continue to carry out other tests. If the fault is improved, then the product with double pressure shall be re-carried out for this item and the total number of tests related to this item. After the risk of other items is compensated, no qualified items will appear, that is, the batch of type inspection shall be carried out closely.
6.2.5 Type test If one day's test is interrupted due to external reasons, the test shall be continued from this item after the external reasons are eliminated. Continue to do the test for months.
7 Marking
There should be signs and labels on the main compass and the attached equipment. The signs should include the name, pressure, production number, date of manufacture, manufacturer, product standard number, and the safest distance between the standard compass and the center of the exploration compass. The safest distance should refer to the relevant provisions of CB/206:
The main compass should be marked with the "Ship Inspection" mark on the name or label. 8 Packaging 8.1 The installation of the compass shall be in accordance with the relevant provisions of GH/T13334. 6-2 The packing box shall be accompanied by the corresponding factory trade materials, such as: packing back sheet, product quality certificate, product instructions, installation wiring diagram, etc., additional instructions, this standard was proposed by China Shipbuilding Industry Corporation. G4300-94 This standard was drafted by the Shanghai Marine Instrument General Institute of China Shipbuilding Industry Corporation. The original authors of this standard are Zeng Qing, Huang Zhuojia, Zhu Lian, Yong Liquan,The compass should be tested for vibration in the following three directions:
horizontal vibration with a deviation of 31±1 from the meridian plane (line), a.
horizontal vibration with a deviation of 1±1 from the meridian plane (line), and vertical vibration.
When conducting vibration tests in each direction, wait for the fixed point to be determined first, and then start to report at the excitation frequency in Table 1. Keep the corresponding amplitude for 25min each time. Verify the reading of the next direction at the end of each test. The recorded forward direction and the stability point should meet the requirements of 4. 23.2 requires that
can be used to remove or reduce the electromagnetic field that may have an impact on the compass performance. 5.12.2 Except for the main compass, the other equipment shall be placed on the moving parts in their normal working positions and connected to the normal electrical circuits. Start the test and find the stable point. The equipment on the moving platform shall be subjected to a direct vibration test with a rate of 1 times the rated value/certified according to the range in Table 2. The error is 10x, each test rate is less than 25min, the equipment under test shall repeat the above tests once in two directions perpendicular to the cabinet on the horizontal plane, there shall be no gas leakage or mechanical failure in each stage of the test, at the end of each stage, the directions of the indicator tube shall be recorded, and the differences between the recorded headings and the forward directions of the stable point shall meet the requirements of Article 4.13.b.
5.13: Speed test of main and sub compasses
This test is applicable to multi-compasses with sub compasses. 5.13.1 The main zero meridian is placed on a horizontal turntable. The negative pole of the sub compass must be rated. The sub compass wire should be well matched with the main compass. The turntable should rotate at a speed of no less than 5/100. During the rotation, the compass (or turntable) dial should be marked. Every time it rotates left and right, the value of the main and sub compasses should be recorded. This should be 12 times in total. The difference between the first readings of the upper and lower compasses should approximately meet the requirements of 4.14. 5.13.2 When the azimuth compass on the exposed plate is used for the 51% test, the upper azimuth compass shall be placed in the temperature box under the conditions of -22±3℃ and +603 respectively, and kept warm for 2 hours. The first reading of the azimuth compass obtained by the observation case at the heating rate shall be reported continuously, and the difference between the first reading of the main azimuth compass and the first reading of the main azimuth compass shall meet the requirements of 4.14. 5.14 Error test caused by magnetic field F
The main reference line must be within 100 years. Start the compass under the working conditions. After stabilization, find the stable point. Then, take the north-south force direction as the horizontal field strength A/m, and make the compass stabilize again. The difference between the heading of the stable point obtained and the heading of the original fixed point should meet the requirements of Article 4.15. According to the above method, test once in the east and west directions and the required true direction respectively. 5.15 Compatibility test
or these methods are recorded in Table A) of GB10250 and the corresponding test items are carried out according to the assessment items specified in the preparation period. The test results shall comply with the requirements of 4.16.
5.15 Frequency test
The noise test is only for the main light and its accessories installed in the cabin. The test method shall be carried out in accordance with Article 15.5 of (B12267). The sound level shall comply with Article 4.17. 5.17 Insulation resistance measurement
5.17.1 Use 51V megohmmeter to measure the insulation resistance of the cold and active insulation part (not including the whole circuit of the amplifier printed board, etc.) , the insulation voltage of the cable shall meet the requirements of 4 and 18.
5.17.2 The hot insulation voltage attached
is turned off after the thermal equilibrium is reached, and the 500V ohmmeter is used to measure the base part, not including the amplifier to the board, etc.), and the insulation voltage of the machine shall meet the requirements of 4:1%b. 5-17.3 The measurement method of the hot insulation voltage E
has been specified in Article 5.11
5.18 The cumulative waterproof test| |tt||The test position should be tested by the test method in accordance with GB12267 14.5. The test load should be adjusted according to the requirements of outdoor protection level 4.1.11.
5.19 Insulation dielectric strength test
Use special test equipment, according to the working voltage of each independent circuit of the compass, measure the insulation strength between the remaining circuits and the casing. The capacity is 1kVA, the time is 1min, and the result should meet the requirements of 4.19. 5.20 The test of the compass, inlay parts and parts of the image material shall be carried out in accordance with the provisions of GB2423.16 for 25h. The test shall meet the requirements of Article 4.1.9. 5-21 Salt spray test The salt spray test of the compass parts shall be carried out in accordance with the provisions of GB2123.17 for 48h. The result shall meet the requirements of Article 4.1. 5.22 Appearance quality inspection GR/T 43C0-94 The appearance quality of the received products shall be inspected once a month, and the result shall meet the requirements of Article 4.1. 6 Inspection plan The inspection places to be inspected are factory inspection and required inspection. 6.1 Inspection 6.1-1 Inspection 6.1.2 Inspection items 5.
I set time
Total set point error
Test items
The complex nature of the set point setting
Bi Peng Wen Rong
Point moving reading
Fast state error of rapid change correction
·The machine error of the return to the north
! ! The maneuvering error of the bottom change of 1 hour*
The special blue caused by the change of source pressure and rate
The real change caused the fast pad
The error caused by the golden environment
Analysis of the error caused by
Main. The four-way distribution station
The correct meat Lai Qi
Technical instructions
Test method
5-13-2
The lower blood teaching
The world standard comparison
The standard paint resistance
Test item F
Small position anti-corrosion waterproof
The first loss sequence
Standard test
CB/T 4300--94
Continued Table 5
6.2.1 Type qualification! Only when one of the following is said, the trial production of the product is finalized; when the type is approved!
Test method
5.17,5:7. +
Output inspection
When the product design, process or materials are significantly changed and have a tangible impact on the product performance: d Although the production volume is changed, the annual vehicle tour is one drink, 6.2.2 A single unit should be selected from the products that have passed the factory inspection for type inspection: 6-2.3 Type inspection page 5:
Type tire
6-2.4 "During the inspection process, if there is any item that is not self-contained, it is allowed to be handled in the original area, and the new unit should be measured after the failure. Carry out the test of this item and the test related to this item: after passing the test, continue to carry out other tests. If the fault is improved, then the product with double pressure shall be re-carried out for this item and the total number of tests related to this item. After the risk of other items is compensated, no qualified items will appear, that is, the batch of type inspection shall be carried out closely.
6.2.5 Type test If one day's test is interrupted due to external reasons, the test shall be continued from this item after the external reasons are eliminated. Continue to do the test for months.
7 Marking
There should be signs and labels on the main compass and the attached equipment. The signs should include the name, pressure, production number, date of manufacture, manufacturer, product standard number, and the safest distance between the standard compass and the center of the exploration compass. The safest distance should refer to the relevant provisions of CB/206:
The main compass should be marked with the "Ship Inspection" mark on the name or label. 8 Packaging 8.1 The installation of the compass shall be in accordance with the relevant provisions of GH/T13334. 6-2 The packing box shall be accompanied by the corresponding factory trade materials, such as: packing back sheet, product quality certificate, product instructions, installation wiring diagram, etc., additional instructions, this standard was proposed by China Shipbuilding Industry Corporation. G4300-94 This standard was drafted by the Shanghai Marine Instrument General Institute of China Shipbuilding Industry Corporation. The original authors of this standard are Zeng Qing, Huang Zhuojia, Zhu Lian, Yong Liquan,The compass should be tested for vibration in the following three directions:
horizontal vibration with a deviation of 31±1 from the meridian plane (line), a.
horizontal vibration with a deviation of 1±1 from the meridian plane (line), and vertical vibration.
When conducting vibration tests in each direction, wait for the fixed point to be determined first, and then start to report at the excitation frequency in Table 1. Keep the corresponding amplitude for 25min each time. Verify the reading of the next direction at the end of each test. The recorded forward direction and the stability point should meet the requirements of 4. 23.2 requires that
can be used to remove or reduce the electromagnetic field that may have an impact on the compass performance. 5.12.2 Except for the main compass, the other equipment shall be placed on the moving parts in their normal working positions and connected to the normal electrical circuits. Start the test and find the stable point. The equipment on the moving platform shall be subjected to a direct vibration test with a rate of 1 times the rated value/certified according to the range in Table 2. The error is 10x, each test rate is less than 25min, the equipment under test shall repeat the above tests once in two directions perpendicular to the cabinet on the horizontal plane, there shall be no gas leakage or mechanical failure in each stage of the test, at the end of each stage, the directions of the indicator tube shall be recorded, and the differences between the recorded headings and the forward directions of the stable point shall meet the requirements of Article 4.13.b.
5.13: Speed test of main and sub compasses
This test is applicable to multi-compasses with sub compasses. 5.13.1 The main zero meridian is placed on a horizontal turntable. The negative pole of the sub compass must be rated. The sub compass wire should be well matched with the main compass. The turntable should rotate at a speed of no less than 5/100. During the rotation, the compass (or turntable) dial should be marked. Every time it rotates left and right, the value of the main and sub compasses should be recorded. This should be 12 times in total. The difference between the first readings of the upper and lower compasses should approximately meet the requirements of 4.14. 5.13.2 When the azimuth compass on the exposed plate is used for the 51% test, the upper azimuth compass shall be placed in the temperature box under the conditions of -22±3℃ and +603 respectively, and kept warm for 2 hours. The first reading of the azimuth compass obtained by the observation case at the heating rate shall be reported continuously, and the difference between the first reading of the main azimuth compass and the first reading of the main azimuth compass shall meet the requirements of 4.14. 5.14 Error test caused by magnetic field F
The main reference line must be within 100 years. Start the compass under the working conditions. After stabilization, find the stable point. Then, take the north-south force direction as the horizontal field strength A/m, and make the compass stabilize again. The difference between the heading of the stable point obtained and the heading of the original fixed point should meet the requirements of Article 4.15. According to the above method, test once in the east and west directions and the required true direction respectively. 5.15 Compatibility test
or these methods are recorded in Table A) of GB10250 and the corresponding test items are carried out according to the assessment items specified in the preparation period. The test results shall comply with the requirements of 4.16.
5.15 Frequency test
The noise test is only for the main light and its accessories installed in the cabin. The test method shall be carried out in accordance with Article 15.5 of (B12267). The sound level shall comply with Article 4.17. 5.17 Insulation resistance measurement
5.17.1 Use 51V megohmmeter to measure the insulation resistance of the cold and active insulation part (not including the whole circuit of the amplifier printed board, etc.) , the insulation voltage of the cable shall meet the requirements of 4 and 18.
5.17.2 The hot insulation voltage attached
is turned off after the thermal equilibrium is reached, and the 500V ohmmeter is used to measure the base part, not including the amplifier to the board, etc.), and the insulation voltage of the machine shall meet the requirements of 4:1%b. 5-17.3 The measurement method of the hot insulation voltage E
has been specified in Article 5.11
5.18 The cumulative waterproof test| |tt||The test position should be tested by the test method in accordance with GB12267 14.5. The test load should be adjusted according to the requirements of outdoor protection level 4.1.11.
5.19 Insulation dielectric strength test
Use special test equipment, according to the working voltage of each independent circuit of the compass, measure the insulation strength between the remaining circuits and the casing. The capacity is 1kVA, the time is 1min, and the result should meet the requirements of 4.19. 5.20 The test of the compass, inlay parts and parts of the image material shall be carried out in accordance with the provisions of GB2423.16 for 25h. The test shall meet the requirements of Article 4.1.9. 5-21 Salt spray test The salt spray test of the compass parts shall be carried out in accordance with the provisions of GB2123.17 for 48h. The result shall meet the requirements of Article 4.1. 5.22 Appearance quality inspection GR/T 43C0-94 The appearance quality of the received products shall be inspected once a month, and the result shall meet the requirements of Article 4.1. 6 Inspection plan The inspection places to be inspected are factory inspection and required inspection. 6.1 Inspection 6.1-1 Inspection 6.1.2 Inspection items 5.
I set time
Total set point error
Test items
The complex nature of the set point setting
Bi Peng Wen Rong
Point moving reading
Fast state error of rapid change correction
·The machine error of the return to the north
! ! The maneuvering error of the bottom change of 1 hour*
The special blue caused by the change of source pressure and rate
The real change caused the fast pad
The error caused by the golden environment
Analysis of the error caused by
Main. The four-way distribution station
The correct meat Lai Qi
Technical instructions
Test method
5-13-2
The lower blood teaching
The world standard comparison
The standard paint resistance
Test item F
Small position anti-corrosion waterproof
The first loss sequence
Standard test
CB/T 4300--94
Continued Table 5
6.2.1 Type qualification! Only when one of the following is said, the trial production of the product is finalized; when the type is approved!
Test method
5.17,5:7. +
Output inspection
When the product design, process or materials are significantly changed and have a tangible impact on the product performance: d Although the production volume is changed, the annual vehicle tour is one drink, 6.2.2 A single unit should be selected from the products that have passed the factory inspection for type inspection: 6-2.3 Type inspection page 5:
Type tire
6-2.4 "During the inspection process, if there is any item that is not self-contained, it is allowed to be handled in the original area, and the new unit should be measured after the failure. Carry out the test of this item and the test related to this item: after passing the test, continue to carry out other tests. If the fault is improved, then the product with double pressure shall be re-carried out for this item and the total number of tests related to this item. After the risk of other items is compensated, no qualified items will appear, that is, the batch of type inspection shall be carried out closely.
6.2.5 Type test If one day's test is interrupted due to external reasons, the test shall be continued from this item after the external reasons are eliminated. Continue to do the test for months.
7 Marking
There should be signs and labels on the main compass and the attached equipment. The signs should include the name, pressure, production number, date of manufacture, manufacturer, product standard number, and the safest distance between the standard compass and the center of the exploration compass. The safest distance should refer to the relevant provisions of CB/206:
The main compass should be marked with the "Ship Inspection" mark on the name or label. 8 Packaging 8.1 The installation of the compass shall be in accordance with the relevant provisions of GH/T13334. 6-2 The packing box shall be accompanied by the corresponding factory trade materials, such as: packing back sheet, product quality certificate, product instructions, installation wiring diagram, etc., additional instructions, this standard was proposed by China Shipbuilding Industry Corporation. G4300-94 This standard was drafted by the Shanghai Marine Instrument General Institute of China Shipbuilding Industry Corporation. The original authors of this standard are Zeng Qing, Huang Zhuojia, Zhu Lian, Yong Liquan,2 requirements,
can be taken to remove or reduce the electromagnetic field caused by the vibration device to the light shadow on the compass performance, 5.12.2 Except for the main compass, other equipment shall be set on the moving parts in normal working position and connected with normal electrical circuits. Start the test. When the stable point is at the starting point, the equipment on the moving platform shall be subjected to 1 times the rated/certified vertical sweep vibration test according to the frequency range in Table 2. The differential is 10x. The frequency of each test shall be at least 25min. The equipment under test shall repeat the above tests once in two directions perpendicular to the cabinet on the horizontal plane. There should be no air leakage or mechanical failure in each stage of the test. At the end of each stage, the directions are recorded and the differences between the recorded directions and the forward directions of the stable point shall meet the requirements of Article 4.13.b.
5.13: Speed test of main and sub compasses
This test is applicable to multi-compasses with sub compasses. 5.13.1 The main zero meridian is placed on a horizontal turntable. The negative pole of the sub compass must be rated. The sub compass wire should be well matched with the main compass. The turntable should rotate at a speed of no less than 5/100. During the rotation, the compass (or turntable) dial should be marked. Every time it rotates left and right, the value of the main and sub compasses should be recorded. This should be 12 times in total. The difference between the first readings of the upper and lower compasses should approximately meet the requirements of 4.14. 5.13.2 When the azimuth compass on the exposed plate is used for the 51% test, the upper azimuth compass shall be placed in the temperature box under the conditions of -22±3℃ and +603 respectively, and kept warm for 2 hours. The first reading of the azimuth compass obtained by the observation case at the heating rate shall be reported continuously, and the difference between the first reading of the main azimuth compass and the first reading of the main azimuth compass shall meet the requirements of 4.14. 5.14 Error test caused by magnetic field F
The main reference line must be within 100 years. Start the compass under the working conditions. After stabilization, find the stable point. Then, take the north-south force direction as the horizontal field strength A/m, and make the compass stabilize again. The difference between the heading of the stable point obtained and the heading of the original fixed point should meet the requirements of Article 4.15. According to the above method, test once in the east and west directions and the required true direction respectively. 5.15 Compatibility test
or these methods are recorded in Table A) of GB10250 and the corresponding test items are carried out according to the assessment items specified in the preparation period. The test results shall comply with the requirements of 4.16.
5.15 Frequency testbzxZ.net
The noise test is only for the main light and its accessories installed in the cabin. The test method shall be carried out in accordance with Article 15.5 of (B12267). The sound level shall comply with Article 4.17. 5.17 Insulation resistance measurement
5.17.1 Use 51V megohmmeter to measure the insulation resistance of the cold and active insulation part (not including the whole circuit of the amplifier printed board, etc.) , the insulation voltage of the cable shall meet the requirements of 4 and 18.
5.17.2 The hot insulation voltage attached
is turned off after the thermal equilibrium is reached, and the 500V ohmmeter is used to measure the base part, not including the amplifier to the board, etc.), and the insulation voltage of the machine shall meet the requirements of 4:1%b. 5-17.3 The measurement method of the hot insulation voltage E
has been specified in Article 5.11
5.18 The cumulative waterproof test| |tt||The test position should be tested by the test method in accordance with GB12267 14.5. The test load should be adjusted according to the requirements of outdoor protection level 4.1.11.
5.19 Insulation dielectric strength test
Use special test equipment, according to the working voltage of each independent circuit of the compass, measure the insulation strength between the remaining circuits and the casing. The capacity is 1kVA, the time is 1min, and the result should meet the requirements of 4.19. 5.20 The test of the compass, inlay parts and parts of the image material shall be carried out in accordance with the provisions of GB2423.16 for 25h. The test shall meet the requirements of Article 4.1.9. 5-21 Salt spray test The salt spray test of the compass parts shall be carried out in accordance with the provisions of GB2123.17 for 48h. The result shall meet the requirements of Article 4.1. 5.22 Appearance quality inspection GR/T 43C0-94 The appearance quality of the received products shall be inspected once a month, and the result shall meet the requirements of Article 4.1. 6 Inspection plan The inspection places to be inspected are factory inspection and required inspection. 6.1 Inspection 6.1-1 Inspection 6.1.2 Inspection items 5.
I set time
Total set point error
Test items
The complex nature of the set point setting
Bi Peng Wen Rong
Point moving reading
Fast state error of rapid change correction
·The machine error of the return to the north
! ! The maneuvering error of the bottom change of 1 hour*
The special blue caused by the change of source pressure and rate
The real change caused the fast pad
The error caused by the golden environment
Analysis of the error caused by
Main. The four-way distribution station
The correct meat Lai Qi
Technical instructions
Test method
5-13-2
The lower blood teaching
The world standard comparison
The standard paint resistance
Test item F
Small position anti-corrosion waterproof
The first loss sequence
Standard test
CB/T 4300--94
Continued Table 5
6.2.1 Type qualification! Only when one of the following is said, the trial production of the product is finalized; when the type is approved!
Test method
5.17,5:7. +
Output inspection
When the product design, process or materials are significantly changed and have a tangible impact on the product performance: d Although the production volume is changed, the annual vehicle tour is one drink, 6.2.2 A single unit should be selected from the products that have passed the factory inspection for type inspection: 6-2.3 Type inspection page 5:
Type tire
6-2.4 "During the inspection process, if there is any item that is not self-contained, it is allowed to be handled in the original area, and the new unit should be measured after the failure. Carry out the test of this item and the test related to this item: after passing the test, continue to carry out other tests. If the fault is improved, then the product with double pressure shall be re-carried out for this item and the total number of tests related to this item. After the risk of other items is compensated, no qualified items will appear, that is, the batch of type inspection shall be carried out closely.
6.2.5 Type test If one day's test is interrupted due to external reasons, the test shall be continued from this item after the external reasons are eliminated. Continue to do the test for months.
7 Marking
There should be signs and labels on the main compass and the attached equipment. The signs should include the name, pressure, production number, date of manufacture, manufacturer, product standard number, and the safest distance between the standard compass and the center of the exploration compass. The safest distance should refer to the relevant provisions of CB/206:
The main compass should be marked with the "Ship Inspection" mark on the name or label. 8 Packaging 8.1 The installation of the compass shall be in accordance with the relevant provisions of GH/T13334. 6-2 The packing box shall be accompanied by the corresponding factory trade materials, such as: packing back sheet, product quality certificate, product instructions, installation wiring diagram, etc., additional instructions, this standard was proposed by China Shipbuilding Industry Corporation. G4300-94 This standard was drafted by the Shanghai Marine Instrument General Institute of China Shipbuilding Industry Corporation. The original authors of this standard are Zeng Qing, Huang Zhuojia, Zhu Lian, Yong Liquan,2 requirements,
can be taken to remove or reduce the electromagnetic field caused by the vibration device to the light shadow on the compass performance, 5.12.2 Except for the main compass, other equipment shall be set on the moving parts in normal working position and connected with normal electrical circuits. Start the test. When the stable point is at the starting point, the equipment on the moving platform shall be subjected to 1 times the rated/certified vertical sweep vibration test according to the frequency range in Table 2. The differential is 10x. The frequency of each test shall be at least 25min. The equipment under test shall repeat the above tests once in two directions perpendicular to the cabinet on the horizontal plane. There should be no air leakage or mechanical failure in each stage of the test. At the end of each stage, the directions are recorded and the differences between the recorded directions and the forward directions of the stable point shall meet the requirements of Article 4.13.b.
5.13: Speed test of main and sub compasses
This test is applicable to multi-compasses with sub compasses. 5.13.1 The main zero meridian is placed on a horizontal turntable. The negative pole of the sub compass must be rated. The sub compass wire should be well matched with the main compass. The turntable should rotate at a speed of no less than 5/100. During the rotation, the compass (or turntable) dial should be marked. Every time it rotates left and right, the value of the main and sub compasses should be recorded. This should be 12 times in total. The difference between the first readings of the upper and lower compasses should approximately meet the requirements of 4.14. 5.13.2 When the azimuth compass on the exposed plate is used for the 51% test, the upper azimuth compass shall be placed in the temperature box under the conditions of -22±3℃ and +603 respectively, and kept warm for 2 hours. The first reading of the azimuth compass obtained by the observation case at the heating rate shall be reported continuously, and the difference between the first reading of the main azimuth compass and the first reading of the main azimuth compass shall meet the requirements of 4.14. 5.14 Error test caused by magnetic field F
The main reference line must be within 100 years. Start the compass under the working conditions. After stabilization, find the stable point. Then, take the north-south force direction as the horizontal field strength A/m, and make the compass stabilize again. The difference between the heading of the stable point obtained and the heading of the original fixed point should meet the requirements of Article 4.15. According to the above method, test once in the east and west directions and the required true direction respectively. 5.15 Compatibility test
or these methods are recorded in Table A) of GB10250 and the corresponding test items are carried out according to the assessment items specified in the preparation period. The test results shall comply with the requirements of 4.16.
5.15 Frequency test
The noise test is only for the main light and its accessories installed in the cabin. The test method shall be carried out in accordance with Article 15.5 of (B12267). The sound level shall comply with Article 4.17. 5.17 Insulation resistance measurement
5.17.1 Use 51V megohmmeter to measure the insulation resistance of the cold and active insulation part (not including the whole circuit of the amplifier printed board, etc.) , the insulation voltage of the cable shall meet the requirements of 4 and 18.
5.17.2 The hot insulation voltage attached
is turned off after the thermal equilibrium is reached, and the 500V ohmmeter is used to measure the base part, not including the amplifier to the board, etc.), and the insulation voltage of the machine shall meet the requirements of 4:1%b. 5-17.3 The measurement method of the hot insulation voltage E
has been specified in Article 5.11
5.18 The cumulative waterproof test| |tt||The test position should be tested by the test method in accordance with GB12267 14.5. The test load should be adjusted according to the requirements of outdoor protection level 4.1.11.
5.19 Insulation dielectric strength test
Use special test equipment, according to the working voltage of each independent circuit of the compass, measure the insulation strength between the remaining circuits and the casing. The capacity is 1kVA, the time is 1min, and the result should meet the requirements of 4.19. 5.20 The test of the compass, inlay parts and parts of the image material shall be carried out in accordance with the provisions of GB2423.16 for 25h. The test shall meet the requirements of Article 4.1.9. 5-21 Salt spray test The salt spray test of the compass parts shall be carried out in accordance with the provisions of GB2123.17 for 48h. The result shall meet the requirements of Article 4.1. 5.22 Appearance quality inspection GR/T 43C0-94 The appearance quality of the received products shall be inspected once a month, and the result shall meet the requirements of Article 4.1. 6 Inspection plan The inspection places to be inspected are factory inspection and required inspection. 6.1 Inspection 6.1-1 Inspection 6.1.2 Inspection items 5.
I set time
Total set point error
Test items
The complex nature of the set point setting
Bi Peng Wen Rong
Point moving reading
Fast state error of rapid change correction
·The machine error of the return to the north
! ! The maneuvering error of the bottom change of 1 hour*
The special blue caused by the change of source pressure and rate
The real change caused the fast pad
The error caused by the golden environment
Analysis of the error caused by
Main. The four-way distribution station
The correct meat Lai Qi
Technical instructions
Test method
5-13-2
The lower blood teaching
The world standard comparison
The standard paint resistance
Test item F
Small position anti-corrosion waterproof
The first loss sequence
Standard test
CB/T 4300--94
Continued Table 5
6.2.1 Type qualification! Only when one of the following is said, the trial production of the product is finalized; when the type is approved!
Test method
5.17,5:7. +
Output inspection
When the product design, process or materials are significantly changed and have a tangible impact on the product performance: d Although the production volume is changed, the annual vehicle tour is one drink, 6.2.2 A single unit should be selected from the products that have passed the factory inspection for type inspection: 6-2.3 Type inspection page 5:
Type tire
6-2.4 "During the inspection process, if there is any item that is not self-contained, it is allowed to be handled in the original area, and the new unit should be measured after the failure. Carry out the test of this item and the test related to this item: after passing the test, continue to carry out other tests. If the fault is improved, then the product with double pressure shall be re-carried out for this item and the total number of tests related to this item. After the risk of other items is compensated, no qualified items will appear, that is, the batch of type inspection shall be carried out closely.
6.2.5 Type test If one day's test is interrupted due to external reasons, the test shall be continued from this item after the external reasons are eliminated. Continue to do the test for months.
7 Marking
There should be signs and labels on the main compass and the attached equipment. The signs should include the name, pressure, production number, date of manufacture, manufacturer, product standard number, and the safest distance between the standard compass and the center of the exploration compass. The safest distance should refer to the relevant provisions of CB/206:
The main compass should be marked with the "Ship Inspection" mark on the name or label. 8 Packaging 8.1 The installation of the compass shall be in accordance with the relevant provisions of GH/T13334. 6-2 The packing box shall be accompanied by the corresponding factory trade materials, such as: packing back sheet, product quality certificate, product instructions, installation wiring diagram, etc., additional instructions, this standard was proposed by China Shipbuilding Industry Corporation. G4300-94 This standard was drafted by the Shanghai Marine Instrument General Institute of China Shipbuilding Industry Corporation. The original authors of this standard are Zeng Qing, Huang Zhuojia, Zhu Lian, Yong Liquan,1. The main zero meridian is on the horizontal turntable. The negative pole of the minute compass should be rated. The minute compass should be matched with the main compass. The turntable rotates at a speed of no less than 5/10. During the rotation, the case compass (or turntable) dial is displayed. Every time it rotates left and right, the readings of the main and minute meridians are recorded. This is counted 12 times. The difference between the first readings of the minute compass and the first readings of the main zero meridian each time should approximately meet the requirements of 4.14. 5.13.2 When the azimuth minute meridian on the exposed pla
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