Lightning protection device implementation rules
Chapter I General Provisions-In order to reduce and prevent lightning strikes, protect the safety of the country and people ’s lives and property, standardize the testing work of lightning protection facilities across the province, and ensure the quality of testing, according to the “Provincial Meteorological Regulations†and "Measures", these rules are specially formulated.
Article 2 The testing institutions at all levels in the province are based on the National Standard of the People's Republic of China "Code for the Design of Buildings" (GB50057-94) (hereinafter referred to as the "Code" and the current relevant technical specifications and standards, and are formulated in strict accordance with the testing institutions at all levels Work of the "Quality Management Manual".
Article 3 These "Rules" apply to the use of lightning protection inspection agencies at all levels in the province.
Chapter 2 Testing Items Article 4 The determination of lightning protection types of buildings (including structures, the same below) is divided into three categories according to the importance of buildings, the nature of use, the possibility and consequences of lightning accidents, and lightning protection requirements. For the determination of the lightning protection classification of various buildings, see "Code for Design of Lightning Protection of Buildings" GB50057-94.
Article 5 Examination of design documents of construction drawings of lightning protection devices of buildings The examination of design documents of construction drawings of lightning protection devices shall be the responsibility of the design review room.
Examine whether the lightning protection design of newly-built and already-built buildings of Class I, II and III have measures to prevent direct lightning and lightning wave intrusion. For Class I and Class II Lightning Protection Buildings in Paragraphs 4, 0.3 and 4 of Section 2.0.3 of the Code, it is still necessary to review whether measures for lightning induction are to be taken.
Lightning protection device construction drawing design document review sub-drawings and on-site review. Mainly check whether the lightning protection meets the requirements of the specification according to the lightning protection category, whether the drawings are standardized, whether the description is accurate, and whether the design unit is qualified. The on-site review is mainly to review whether it is constructed according to the design and construction drawings, and finally determine the performance of the facility through on-site testing . After the review is completed, the testing station shall be notified to carry out on-site follow-up testing in accordance with the results of the review.
Article 6 Detection of lightning protection devices of buildings.
1. The geometric dimensions of the building.
Characterize the shape and structure of the building, and also provide the length, width, height, radius, etc. of the building on which the relevant parameters are determined or judged for the detection of lightning protection devices. Due to different buildings, the detailed rules for the measurement of the geometric dimensions of the building are as follows (see attached picture).
(1) The measurement of the sky size measures the sky size according to the "Common Schematic Diagram of Sky Shape Measurement"
(2) Height The height of the building is measured according to the "height measurement diagram".
(3), measurement requirements of building geometric dimensions
A Unit: m, instrument: tape measure (length, width, height), accuracy 0.01m (high, accuracy 0.2m, range 0-70m). Volume 0-50m, line-of-sight altimeter
B. The size of the sky surface is measured on the ground with reference to the design drawing. It is measured on the sky surface only when there is a special shaped sky surface.
C. The length and width of the ground measurement are measured at a height of 1.2m from the ground. The tape measure should be kept straight. When measuring height with a tape measure, it should be kept vertical. When measuring the geometric size with a tape measure, two people must take readings. When the reading error of two people is less than ± 0.1 At m, only one measurement is made and recorded. When the error is greater than ± 0.1m, the measurement shall be repeated until the error requirements are met. When measuring height with a line-of-sight altimeter, at least two ranges of distance measurement should be selected, and the error of the two measurements should be less than ± 0.2m, otherwise repeat the measurement until the error requirements are met.
(4). Judgment: There is no standard for the geometric dimensions of the building, and no qualification judgment is made.
2. According to the types of lightning arresters, the types of lightning arresters include lightning rods, lightning belts, lightning protection nets, lightning conductors, etc. According to the design drawings and on-site visual inspection, it is determined that the same-buildings can use different types of lightning receptors, so the lightning receptors are only recorded , No judgment.
3. The effective height of the lightning receptor refers to the height of the lightning receptor above the plane of the protected object.
(1), effective height of lightning rod = height of lightning rod-height of protected object.
(2) The unit of the height of the lightning rod and the height of the object to be protected is m. It is measured with a line-of-sight altimeter with an accuracy of 0.2m. The same target must be selected for two ranges of distance measurement. Measurement. The measuring person should keep the lightning rod and the protected object on the same plane.
(3) The effective height of the lightning protection line = the height of the lowest point of the lightning protection line from the ground-the height of the protected object.
(4) The projection point of the lowest point of the lightning protection line is the lowest point of the two poles of the lightning protection line. According to the above method, the height of the lowest point of the lightning protection line and the protected object can be measured with a line-of-sight altimeter. The measurement methods and requirements are the same as above.
(5) The effective height of the lightning protection belt: The effective height of the lightning protection belt is the height of the lightning protection belt above the protected roof. For the lightning protection belt of the flat roof, the height requirement is only 0.1-0.3m, and there is no standard for the height of the lightning protection belt laid on the parapet wall.
(6) The height of the lightning protection belt of the flat roof is measured with a steel tape or tape measure, the accuracy is 0.001m, the long side selects one point every 10-15m, and the short side selects only one point, and the measurement error of each point should be less than ± 0.005m. Otherwise, repeat the test. The height of the daughter's lightning protection belt is not measured.
(7). The heights of lightning rods, lightning conductors and non-planar lightning protection belts are only used as the basic parameters for calculating the protection scope, and no qualification judgment is made; the effective height of the lightning protection belt on the roof of new buildings must meet the design requirements, and the height of the lightning protection belt on the roof of the annual inspection building should be consistent , No high or low inconsistency, otherwise it is judged as unqualified.
4. Specifications of air-termination
(1) The lightning rod should be made of round steel or welded steel pipe, and its specifications should meet the following requirements:
When the needle length is less than lm, the diameter of the round steel is ≥12mm, and the diameter of the steel pipe is ≥20mm;
When the needle length is 1-2m, the diameter of the round steel is ≥16mm, and the diameter of the steel pipe is ≥25mm;
The needle on the top of the chimney, the diameter of the round steel ≥20mm, the diameter of the steel tube ≥40mm.
(2) Materials and specifications of the lightning protection network and lightning protection belt The lightning protection network and lightning protection belt should be round steel or flat steel, and their specifications should meet the following requirements:
Round steel diameter ≥8mm flat steel section ≥48mm2 thickness ≥4mm.
(3) Lightning protection on the top of the chimney adopts round steel flat steel round steel diameter ≥ l2mm. Flat steel section ≥ 100mm2 thickness ≥ 4mm.
(4) Measure with vernier caliper, the accuracy is 0.02mm, the diameter of the lightning rod should be repeated twice, and the error is less than 0.1 mm, otherwise the re-measurement, the lightning protection strip specification measurement at least select one point every 15-20m on the long side and at least the short side A little measurement,
Each measurement point should be repeated twice, the error is less than 0.1mm.
(5) When the diameter of the lightning rod meets its minimum specifications, it is judged as qualified, otherwise it is judged as unqualified. When the lightning protection belt is left-when the side measurement result does not meet the minimum specification requirements, it is judged to be unqualified
5. Grid size of the lightning receptor:
(1) Specification requirements, the first category ≤5m × 5m or 4m × 6m, the second category ≤10m × 10m or ≤8m × 12m, the third category ≤20m × 20m, or when the width does not exceed 20m, a circular lightning protection is provided around the sky band.
(2) The measuring instrument is a tape measure with an accuracy of 0.01m and a measurement error of 0.05m.
(3) When measuring, two non-adjacent grids should be selected for measurement on the same sky surface, measured twice on each side, and the error should be less than 0.05m, otherwise repeat the measurement. For the third type of building, when the width of the front surface is less than 20m, there is no need to install a grid, so it is not necessary to measure, only the "circular belt" record.
(4) When the grid size on the front surface meets the specified requirements, it is judged to be qualified, otherwise it is judged to be unqualified; less than 20m, if it is "annular belt", it is judged to be qualified, if it is not "annular belt", it is judged to be unqualified.
6. The vertical distance of the equalizing ring is the width of the third type of building
(1) For the first, second and third lightning protection buildings, when the height exceeds its rolling ball radius, the excess part shall be laid with pressure strips around the building wall every 12m.
(2) The distance between the pressure equalizing belts is measured with a tape measure, the accuracy is 0.1m, and the measurement error is ≤0.2m. Two non-adjacent walls are selected for measurement, and each wall is measured from top to bottom.
(3) When the distance between the pressure belts of each layer is less than 12m, it is judged as qualified. If the distance between the pressure belts of any layer is greater than 12m, it is judged as unqualified.
7. Downline
(1) Specification round steel diameter ≥8mm
Flat steel section of the downline on the chimney ≥48mm2 Flat steel thickness ≥4mm Round steel diameter ≥l2mm Flat steel section ≥l00mm2 Thickness ≥4mm
Multi-core copper wire cross-section of the down-lead of the equipment room ≥35mm2
(2) When using multiple down conductors, a disconnecting card should be installed between each down conductor at a distance of 0.3-1.8m. The distance between the down wires should be ≤12m (-category), ≤18m (category two), ≤25m (category three).
(3) Measuring instrument: vernier caliper with an accuracy of 0.02mm. For the detection of down-lead, the measurement tolerance is: round steel and steel pipe diameter ≤0.5mm flat steel thickness ≤0.1 mm
(4) Each down conductor is 0.1-0.5m away from the ground, optional-point measurement twice, when all down conductors meet the requirements, it is judged as qualified, otherwise it is unqualified.
(5) The distance between the down-line and the down-line is measured with a tape measure. The accuracy is 0.1m, and the measurement error is ≤0.2m. Each measurement is repeated twice.
8. Whether the metal objects protruding from the roof are grounded According to the provisions of "Code for Design of Lightning Protection Buildings of Buildings" GB50057-94, the metal objects protruding from the roof (such as water tanks, overhead pipes, etc.) should be grounded. The actual measurement mainly depends on whether it has been separately grounded or reliably welded with roof lightning rods, belts, nets, etc. If it is grounded, it is judged as qualified, and if it is not grounded or the connection is not good, it is judged as unqualified .
9. Whether the non-metallic protruding roof is protected by lightning protection The non-metallic protruding roof is protected by lightning protection mainly refers to whether the non-metallic object on the roof has a flasher installed on it and is grounded.
The inspection method is visual inspection. It is protected or equipped with an air-termination system and is grounded.
10. Measurement of ground resistance
(1) Technical requirements: The grounding resistance of each group of grounding devices of Class I and II lightning protection buildings R≤10Ω The grounding resistance of each group of grounding device R≤30Ω.
(2) Measuring instruments: M4102, ZC-8, accuracy 0.2Ω.
(3) Measurement method: operate according to the instruction manual of the instrument. Repeat the measurement twice with the measurement position of each group of grounding devices unchanged, and the error should be less than ± 0.2Ω, otherwise repeat the measurement. If the observation data is close to the standard value, it should be measured in at least two different directions that are not adjacent.
(4) When the grounding resistance of each group of grounding devices meets the technical requirements, it can be judged as qualified, otherwise it is judged as unqualified.
(5) Grounding resistance measurement wiring method When measuring the grounding resistance of the ground network, the wiring method generally used is generally the straight-line method, and the other method is the triangle method, or the angle method.
â‘ Straight electrode layout method:
The distance between the current pole and the edge of the grounding body d13 = 4--5 times the diagonal length of the ground grid, d12 = 50%-60% d13. During the measurement, move the voltage pole three times along the line between the grounding body and the current pole, each moving distance is 5% of d13, and the difference between the three measurements is less than 5%. Then take the average of three times to get the ground resistance value. In areas with uniform soil resistivity, d13 = 2D and d12 = 1.2D.
â‘¡ Electrode triangle method:
Generally, d13 = d12≥2D, the angle α≈30 °
When measuring the ground network of microwave stations, according to its industry standards, the electrode triangle arrangement must be used.
And d13 = d12≥4--5D
practice shows that:
The grounding resistance value measured by the triangle method is smaller than the grounding resistance value measured by the straight line method. However, the grounding resistance value obtained by the straight-line method is more reliable. When measuring large ground networks, the voltage and ammeter methods are used, and the electrodes are arranged in a triangle.
â‘¢ Requirements for measuring instruments (1) Table internal resistance:
Because the internal resistance of the meter directly affects the measurement reading, when the error due to the internal resistance of the meter is required to be less than 2%, the internal resistance of the meter should be equal to or greater than 50 times the internal resistance of the voltage pole.
(2) Meter accuracy level:
The accuracy level of the voltmeter, ammeter, current transformer, etc. used for measuring the grounding resistance should not be lower than 0.5. (Divided into 7 levels)
Wire cross section:
The cross-section of the voltage level lead should not be less than 1.0-1.5 square millimeters during measurement; the cross-sectional area of ​​the current electrode lead is determined by the current value, preferably 5A per square millimeter. The resistance of the wire connected to the grounding body under test should not be greater than 2-3% of the grounding resistance, and the lead of the grounding body needs to be derusted and the contact is good to avoid measurement errors.
11. Measure according to ground specifications
(1) Technical requirements:
The manual vertical grounding body should be angle steel, steel pipe, or round steel. Flat horizontal or round steel should be used for the artificial horizontal grounding body.
The specifications are as follows:
Round steel diameter ≥10mm flat steel section ≥100mm2 thickness ≥4mm angle steel thickness ≥4mm steel pipe thickness ≥3.5mm
The inspection of manual vertical grounding body specifications generally adopts the method of consulting capital construction materials and construction acceptance drawings to obtain the data. The parentheses are added when filling in the data, indicating that the data is not direct measurement and is only for reference. However, if conditions can be measured directly, they should be measured and recorded truthfully. The measuring instruments, measuring methods and determination principles are the same as the measurement of the lightning receptor specifications.
12. Check whether the roof pipe and interior design are grounded
(1) Technical requirements: "Code" stipulates that the lightning protection structures of the first and second categories of Articles 3, 2, and 1, paragraphs 4, 5, and 6 shall be lightning protection inductors for roofing tubes and indoor equipment.
(2) Measurement method: visually inspect whether the roof pipe is loose and whether the indoor equipment is grounded. If there is grounding and the grounding resistance is less than 10Ω, it is judged as qualified, otherwise it is not qualified.
13. Spacing between parallel tubes and lines
(1) Technical requirements: when the parallel distance between parallel metal pipes and lines is less than 100mm, a bridge should be made every 30m.
(2) Measurement method: use a tape measure (accuracy of 0.1m) to measure the span distance. Repeat twice for each distance. The error is less than 0.1m. When it meets the requirements, it is judged as qualified, otherwise it is judged as unqualified.
14. Grounding distance measurement of overhead pipes and lines
(1) Technical requirements: Overhead metal pipes, lines entering and leaving the building and every 25m should be grounded, and the grounding resistance R≤20Ω.
(2) Detection method: use a tape measure (accuracy of 0.1m) to measure the grounding interval. Repeat twice for each interval, the error is less than 0.2m, and the grounding resistance is the same as before.
(3) When both the grounding distance and the grounding resistance meet the requirements, it is judged to be qualified, otherwise it is judged to be unqualified.
15. Measurement of buried length of low-voltage line
(1) Technical requirements: The buried length of low-voltage line L = 2√Ï, Ï is the soil resistivity, which can be obtained by looking up the table, and then calculate the L value. It must be greater than 15m.
(2) Detection method: use a tape measure (accuracy of 0.1m) to measure the grounding interval. Repeat twice for each interval, the error is less than 0.2m, and the grounding resistance measurement is the same as before.
(3) When both the grounding distance and the grounding resistance meet the requirements, it is judged to be qualified, otherwise it is judged to be unqualified.
15. Measurement of buried length of low-voltage line
(1) Technical requirements: The accuracy is 0.1m, the measured value should be the actual length, the measurement data should be repeated twice, the error is less than 0.5m.
(2) Measuring instrument: tape measure, accuracy: 0.1m, the measured value should be the actual length, the measured data should be repeated twice, the error is less than 0.5m.
(3) When the measured value reaches the calculated value and is greater than 15m, it is judged as qualified, otherwise it is judged as unqualified.
16. Check whether the metal pipeline of the line is grounded or not. Check whether the metal pipeline of the line is grounded by visual inspection. There are grounding judgments, no grounding judgments, and no grounding judgments. This item is not used for grounding resistance measurement.
17. Whether a lightning arrester is installed at the power entrance to check whether the lightning arrester is installed at the power entrance is judged by visual inspection.
18. Detection of the grounding resistance of the arrester The technical requirements and determination principles of the grounding resistance of the arrester are the same as above.
19. Detection of the starting voltage and leakage current of the arrester The starting voltage and leakage current are tested with a lightning protection element testing instrument, the accuracy is 2V, 0.1μA, each varistor is tested twice, the error is less than 5V, 0.5μA is qualified, otherwise it is not qualified.
Article 7 Detection of lightning protection devices for petroleum facilities
1. The measurement of the height of the lightning rod is the same as paragraph 3 of Article 6.
2. The distance between the lightning rod and the protected object
(1) The nearest straight line distance between the lightning rod and the protected object is ≥3.0m, and there is no standard for the longest distance from the protected object.
(2) Measuring instrument: tape measure, accuracy: 0.1m, each measurement needs to be repeated twice, error ≤ 0.1m.
(3) When the nearest straight line between the lightning rod and the protected line is ≤3.0m, it is judged as qualified, otherwise it is not. The farthest distance from the protected object is only measured and not judged.
3. Lightning rod protection radius
(1) The protection radius of the lightning rod is calculated according to the rolling ball method and calculated according to Appendix IV of the GB50057-94 standard. (2) When the lightning rod is farthest from the protected object and within the protection range of the lightning rod, it is judged as qualified, otherwise it is not.
4. The measurement of lightning rod specifications, down-conductor specifications and tank down-conductor specifications are the same as Article 6, paragraph 4, and Article 6, paragraph 7.
5. Measurement of grounding resistance The grounding resistance of lightning protection facilities is less than 10 Ω, and the measurement requirements are the same as Article 6, paragraph 10.
6. The measurement requirements for the span spacing of the pipelines are the same as those in Articles 6, 13 and 14.
7. Whether the power cord is equipped with a lightning arrester is the same as the requirements of Article 17, Paragraph 17.
Chapter III Testing Procedures Article 8 Testing Process
1. On-site testing must be attended by more than two certified personnel.
2. Check the equipment used to ensure that its performance is intact and within the verification period.
3. Consult the capital construction files of the tested building or facility, including design drawings, construction drawings and completion drawings.
4. On-site investigation of the lightning protection facilities being tested.
Test and determine the test items specified in Article 6 and Article 7 of these Rules.
Article 9 Original records and data processing
1. Original record of lightning protection device detection
(1) The original records used for testing are the tables formulated by the Provincial Office of Lightning and Disaster Mitigation, which faithfully records the results of the detection of lightning protection devices.
(2) The effective digits of the test data are compatible with the precision of the detection system instruments and equipment, and the insufficient parts are filled with "0" to make the effective digits of the test data equal.
(3) The original record form should be filled out truthfully by the inspector during the inspection process, the content is completely filled out, and after the reviewer carefully reviews, the tester and the reviewer will sign and approve.
(4) Records should be filled in with pens, not pencils and ballpoint pens. No alteration or deletion is allowed. If there is any doubt about a certain data record in the review, if the test is repeated on the spot or the tester determines that the record is incorrect and needs to be changed or invalidated, the data column should be changed under the supervision of more than two testers. Draw two horizontal lines, fill in the correct data above the changed data in this column, and stamp the person who changed it.
(5) At the same time when the original data is sent out, the original data shall be filed by the inspector and filed by the technical data customs broker for a period of two years.
(6) In principle, the original records are not allowed to be inspected or copied by outside units. When a test dispute occurs or a test quality accident occurs, the inspected unit requires a notarized certificate, which can only be consulted after being approved by the person in charge of technology and stamped with the official seal of the test station.
(7) The original record adopts the system of taking and returning. The records should be page numbered, not torn, and invalid pages must be kept. Write carefully, write neatly and keep records clean.
2. Data processing
(1) In the process of data processing, if a certain test data deviates from two or more large abnormal values ​​of the same test item, the abnormal value can be eliminated, and other data is used. When the test data of a certain test item appears When the abnormal value is far away from the accurate value of the detection system, the abnormal value of the system cannot be kicked out, and the cause of the deviation is found, and the type of error is determined. If it is caused by the system error of the instrument, the cause should be found and corrected. If it exceeds the error range , You should arrange for retesting.
(2) Among the testing items, items with specifications greater than or equal to the specifications such as air-termination, etc., take the minimum value of the measured data and fill in the processing result column in the original record; items with specifications less than or equal to such as the grounding resistance agent, etc. The maximum value in the measured data is filled in the processing result column in the original record.
(3) Critical value processing When the diameter or thickness of the lightning protection belt and down conductor is greater than or equal to the critical value, it is judged as qualified.
When the test data of the grounding device is close to or equal to the value specified in the technical specifications, it shall be handled according to the following methods:
If the grounding device is a ring grounding device or a basic grounding network, the average value of the grounding resistance values ​​in the four directions is the final result.
If the grounding device is a line-line grounding device, use the standard straight-line test normal direction to test once, plus or minus 30 degrees in the normal direction, each test once, and the average value of the three data is the final result. Or, test the direction of the normal and negative normal of the linear grounding device and the end direction of the linear grounding device once. The average value of the three data is the final result.
(4) The height of the lightning protection zone of the processed test data shall be kept with two decimal places, and the remaining one place with the decimal place shall be filled in the original record processing result column, and shall be compared with the detection standard value for single assessment.
Article 10 Test report of lightning protection device
1. The quality of the test report is the ultimate reflection and centralized reflection of the quality of the testing work of the testing station, and it is also the text of the notarized certificate provided by the station to the inspected unit and the society. It must be filled in and reviewed carefully;
2. The test report is based on the processing results of the original recorded data on the site. The test personnel should fill in all the columns completely, requiring accurate data, language specifications, concise text, clear handwriting, and accurate judgments. It is not allowed to fill in with pencils and ballpoint pens, only with carbon ink pens and basket inks. After the signatures of the inspectors and reviewers (leading inspection engineers), they are handed over to the person in charge of technology for review and issuance. If they are reports of supervision and arbitration tests, they shall be issued by the station master. And affix the official seal of the inspection station.
3. All the test data use the legal measurement unit prescribed by the state. The test report shall not be altered.
4. The test report is in triplicate: one to the unit under inspection, one to the relevant competent department, and one to be kept in our site. Unrelated units and personnel shall not be included in the scope of issuance. Strictly perform registration and signature procedures when issuing.
5. The test report shall be archived and kept by the custodian as technical data for a period of five years. The borrowing of the test report must be approved by the person in charge of technology, and the borrower shall not copy and transcribe the test report.
6. The test report used as a technical dispute can be a copy, but the copy must be signed by the webmaster and stamped with the official seal of the test station.
Chapter IV Inspection Measures for Testing Instruments Before and After Testing Article 11 When inspectors uniformly receive instruments before going to the site for inspection, they should pay attention to check the performance, appearance, whether they have been verified, whether they are used within the verification period, and whether they are green Certificate of conformity.
Article 12 Testing instruments and equipment shall be properly kept on the way to the testing site to avoid severe vibration and damage. After reaching the test site, the performance of the instrument should be checked. Only after the instrument is confirmed to be normal can the test be performed.
Article 13 For all kinds of testing instruments and equipment, the testing personnel must use them strictly in accordance with the instrument's instructions and operating procedures.
Article 14 After the on-site testing is completed, the testing personnel shall hand over the valuable testing equipment to the custodians. The custodial personnel shall inquire, check, and accept the use of the equipment, and fill out the registration form of the use of the equipment; the frequent use of the equipment shall be checked by the station master After approval, the testing personnel shall keep it properly.
Chapter V Handling of Abnormal Phenomena in the Process of Detection Article 15 The technical indicators of the lightning protection device being tested do not meet the requirements. If the lightning protection function is not achieved, a rectification notice with a rectification period must be filled out, and the technology is responsible The person or station owner signs and delivers to the inspected unit.
Article 16 After the rectification, the lightning protection facilities must be re-tested in accordance with the testing procedures after the rectification, and the qualified person shall issue a certificate. If the inspected unit fails to make rectification within the rectification period, it shall be handed over to the legal department in accordance with the procedures. .
Article 17 During the detection process, if it is found that the first measurement is out of tolerance or the test results are too scattered, it shall be handled as follows:
1. Exclude human factors
(1) Check whether the instrument is installed correctly.
(2) Whether the grounding body is disconnected from the down conductor.
(3) Detect whether the electrodes are arranged in a vertical direction with power lines or underground metal pipes.
(4) Whether the grounding resistance is measured immediately after rain or snow.
(5) Man-made reading deviation
2. Exclude objective factors
(1) Whether the grounding resistance measuring instrument is affected by external strong magnetism.
(2) Whether the grounding device is severely corroded and whether the part buried underground is damaged.
(3) The lightning arrester was not replaced even after it was damaged by the lightning strike.
(4) If the probe is sandy soil, inject some clean water along the probe during the test, and test immediately when the water is not dry.
Article 18 After eliminating the above factors, re-test.
Chapter 6 Handling of accidents during the inspection process Article 19 The person in charge of the inspection station shall conduct regular safety education for all inspection personnel, firmly establish the "safety first" idea, and avoid accidents.
Article 20 In the course of testing, if there is any accidental damage to the instrument or equipment, the testing shall be stopped, and the test shall be carried out after the instrument and equipment are replaced again. For damaged instruments, the cause of the damage to the instruments and equipment should be analyzed, and an accident report should be written out and reported to the relevant higher authorities. Man-made accidents should be held accountable.
Article 21 During the detection process, if an unexpected personal accident occurs, emergency measures should be taken, first of all, to organize rescue and treatment, and protect the scene. Conduct a serious investigation on the accident site and its causes, fill out the accident report form, and the person in charge on the site will write a written investigation report on the accident, put forward preliminary handling opinions, and report it to the superior department for handling, and properly arrange the remaining issues.
Article 22 When the inspected unit disagrees with the inspection quality, it shall be implemented in accordance with the relevant provisions of the Quality Management Manual.
Chapter VII Supplementary Provisions Article 23 The detailed rules shall be interpreted by the Provincial Office of Lightning and Disaster Reduction
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