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The effective time of the original lightning protection data is generally 12 hours, because when lightning occurs, it is fixed very quickly, and if you do not change the data beyond this time, it will cause delays.
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The effective time is generally 24 hours, and he must have a time limit, and it is impossible to play a role for a long time.
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The effective time is about 30 seconds. There are specific numbers in this world.
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What is the validity period of the original lightning protection data? That can only be calculated according to your specific floor height, which should be within 60 seconds under normal circumstances.
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The validity time of the lightning protection raw data you mentioned is generally effective within a few hours.
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What's in the bag is also the data validity time, which should be within 24 hours.
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The original data in the room should be valid for about the last three days.
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What is the validity period of Wang Lei's original data? There is only time to pass, it should be within 24 hours!
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What is the effective time of tired raw data? The effective time is generally kept for more than half a year. It depends on the situation in your local area.
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Feng Lei, what is the validity period of the original data? I think this should be contacted by the relevant department to see how much time he sent?
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The effective time of the raw data of lightning protection is determined according to its product performance.
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At least it was thrown away in two days.,Even if it's still a long time, the deep high-speed effect is still very sorry.,Why do people divide it?
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His effective duration is judged according to his different time periods.
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It should be carried out according to the requirements of the lightning protection center of the local meteorological bureau, and the requirements are slightly different in different places, roughly once a year for general buildings, and twice a year for dangerous buildings and important buildings.
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The testing time has its own local regulations, but the requirements are definitely stricter than the national standard.
If you want the Meteorological Bureau to test, you don't have the qualifications to test it yourself. It is necessary to have two qualifications from the Quality Supervision Bureau and the Meteorological Bureau to test.
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Measures for the Management of Lightning Protection and Disaster Reduction
Article 19 After the lightning protection device is put into use, a regular inspection system shall be implemented. The lightning protection device shall be tested once a year, and the lightning protection device shall be tested once every six months for the first and fire hazard environment places.
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The general inspection is to have more detailed detection points, which is the difference in scope.
The specifications you have listed and pulled as required, of course, you can't change the time.
If you are qualified, you can test it.
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According to the lightning defense management measures, ordinary places once a year, flammable and explosive places once every six months. Zhejiang Ke'an Testing **** is the first private testing unit in China with the lightning protection and anti-static testing qualification certificate issued by the Meteorological Bureau, which can serve you wholeheartedly.
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After the construction of lightning protection facilities is completed, the local competent authority needs to carry out the completion acceptance, pass the acceptance, and issue the lightning protection certificate before it can be officially put into use.
For lightning protection facilities with a certificate of conformity, it is generally tested once a year, and the time is between March and September.
Regularly check whether the lightning protection grounding, anti-static grounding, electrical equipment work grounding, protective grounding and information system grounding and other facilities are normal every quarter and report to the company's safety department, if there is any abnormality, immediately report to the department head or relevant person in charge for processing.
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Your question should fall into two scenarios:
First, if it is the requirements of equipment production safety, each is different, which should be determined according to various industry standards. But it should not be more than half a year.
2. If it is the detection interval requirement of the lightning protection station, the place that needs to be electrostatically grounded is generally flammable and explosive dangerous goods, and the detection cycle is half a year.
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Daily testing is ideal, but it is necessary to check once a month.
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Flammable and explosive for half a year, other for one year.
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2 times a year. True/False Question 1 is incorrect. 2 Errors.
1 Answer: The estimated number of lightning strikes is greater than or equal to sub-a, and less than or equal to sub-a, residential, office buildings and other general civil buildings belong to the third category of lightning protection buildings.
2 Answer: The trunk line of the equipotential connection of the building should be led from the grounding trunk or the main equipotential box that has no less than 2 direct connections with the grounding device.
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Generally, once a year, once a year for petrochemical industry.
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The superchain Sun core digs Kaihe through the shed.
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Article 9 provides that if the means of transport carrying goods or articles in the country is carried by the manifest, the transmitter of the manifest shall transmit the main data of the original manifest to the customs within the following time limits: (1) 24 hours before the container ship is loaded on the ship, and 24 hours before the arrival of the non-container ship at the first port of destination in China; (2) If the flight range is less than 4 hours, before the aircraft takes off; If the flight takes more than 4 hours, 4 hours before the aircraft arrives at the first port of destination in China; (3) 2 hours before the railway train arrives at the first destination station in China; (4) 1 hour before the arrival of the highway vehicle at the first destination station in the territory. The Measures also stipulate that the manifest transmitter shall transmit other data of the original manifest to the customs before the inbound goods and articles arrive at the port of destination.
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There is no time limit for the validity of the evidence.
However, you should pay attention to the fact that the rights to be proved in the case are statute of limitations.
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Beijing Borong Law Firm.
There is no time limit!
I'm in Beijing, and I receive legal assistance in this area!
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More, depending on what you are using it for, there are 8 20, 10 350, 10 700, etc.
1. Open Excel** first.
in the raw data**. >>>More