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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. NB/T 10189-2019: Power transmission and transformation equipment. Atmospheric environmental conditions. Monitoring methods Status: Valid
Basic dataStandard ID: NB/T 10189-2019 (NB/T10189-2019)Description (Translated English): Power transmission and transformation equipment. Atmospheric environmental conditions. Monitoring methods Sector / Industry: Energy Industry Standard (Recommended) Classification of Chinese Standard: K40 Classification of International Standard: 19.040 Word Count Estimation: 22,222 Date of Issue: 2019-06-04 Date of Implementation: 2019-10-01 Quoted Standard: GB/T 19292.3-2018; GB/T 4797.1-2018 Regulation (derived from): Natural Resources Department Announcement No. 7 of 2019 Issuing agency(ies): National Energy Administration Summary: This standard specifies the monitoring methods for the main atmospheric environmental parameters encountered during the use of power transmission and transformation equipment. This standard involves environmental parameters such as atmospheric temperature and relative humidity, solar radiation, rainfall, salt deposition rate, atmospheric corrosive media (sulfur dioxide, hydrogen sulfide, ammonia, nitrogen dioxide, chloride ion) concentration and other environmental parameters. The environmental parameter monitoring methods specified in this standard are applicable to the power transmission and transformation equipment used in various climate types in my country as specified in GB/T 4797.1-2018. NB/T 10189-2019: Power transmission and transformation equipment. Atmospheric environmental conditions. Monitoring methods---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Power transmission and transformation equipment- Atmospheric environmental conditions-monitoring methods ICS 19.040 K 40 NB Energy Industry Standards of the People's Republic of China Monitoring method of atmospheric environment condition for power transmission and transformation equipment 2019-06-04 released 2019-10-01 implementation Issued by National Energy Administration Table of contentsForeword...II 1 Scope...1 2 Normative references...1 3 Terms and definitions...1 4 Atmospheric temperature and relative humidity...1 4.1 Measurement parameters and units...1 4.2 Instruments...2 4.3 Instrument installation and maintenance...2 5 Solar radiation...2 5.1 Measuring parameters...2 5.2 Instruments...2 5.3 Installation and maintenance of the instrument...3 6 Rainfall...3 6.1 Measurement parameters and units...3 6.2 Instruments...3 6.3 Installation and maintenance of the instrument...3 7 Salt deposition...4 8 Atmospheric corrosive medium concentration...4 8.1 Overview...4 8.2 Monitoring method of sulfur dioxide concentration...4 8.3 Monitoring method of hydrogen sulfide concentration...7 8.4 Monitoring method of ammonia concentration...10 8.5 Monitoring method of nitrogen dioxide concentration...13 8.6 Monitoring method of chloride ion concentration...15ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009 "Guidelines for Standardization Work Part 1.Standard Structure and Compilation". This standard was proposed and managed by the National Standardization Technical Committee for Environmental Conditions and Environmental Testing of Electrical and Electronic Products (SAC/TC 8). Responsible for drafting this standard. Guangdong Power Grid Co., Ltd. Electric Power Research Institute, China Electrical Apparatus Research Institute Co., Ltd. Participated in the drafting of this standard. China Yangtze Electric Power Co., Ltd., Institute of Metal Research, Chinese Academy of Sciences, State Grid Hunan Electric Power Co., Ltd. Company Electric Power Research Institute, Harbin Institute of Technology Shenzhen Graduate School, Tsinghua University Shenzhen Graduate School, Global Energy Internet Research Institute Limited company. The main drafters of this standard. Nie Ming, Jie Ganxin, Liang Yongchun, Huang Feng, Huang Kaiyun, Dong Chongli, Yi Yawen, Ma Yuantai, Wang Jun, Lu Wang Yan, Xie Yi, Yue Yingchao, Wu Junwei, Jia Zhidong, Hao Wenkui, Chen Chuan, Luo Xiaoyu, Xu Xuedong, Wang Jun, Yang Bingkun, Zhu Hai, Chen Yun, Wang Xilin, Wang Shouhe, Wang Tao, Zhang Qijun. Monitoring method of atmospheric environment condition for power transmission and transformation equipment1 ScopeThis standard specifies the monitoring methods for the main atmospheric environmental parameters encountered during the use of power transmission and transformation equipment. This standard involves atmospheric temperature, atmospheric relative humidity, solar radiation, rainfall, salt deposition rate, atmospheric corrosive media (sulfur dioxide, Environmental parameters such as hydrogen sulfide, ammonia, nitrogen dioxide, chloride ions).2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 19292.3-2003 Corrosion of metals and alloys Measurement of atmospheric corrosive pollutants3 Terms and definitions3.1 Global solar radiation The sum of the direct solar radiation and the solar scattered radiation received from the solid angle of the 2π spherical surface on a horizontal surface. 3.2 Ultraviolet radiation A part of solar radiation whose corresponding wavelength is shorter than that of visible light radiation. Note. Different users may adopt different spectral standards. The E-2.1.2 publication of the CIE Committee sets the wavelength range of ultraviolet radiation between 100 nm and 400 nm. Between. UVA is 315-400 nm, UVB is 280-315 nm, UVC is 100 nm-280 nm. 3.3 Infrared radiation The part of solar radiation whose corresponding wavelength is longer than that of visible light radiation. Note. Different users may adopt different spectral standards. The E-2.1.2 publication of the CIE Committee sets the wavelength range of ultraviolet radiation between 780 nm-1 mm. IRA is 780 nm-14 μm, IRB is 1.4 μm-3 μm, and IRC is 3 μm-1 mm.4 Atmospheric temperature and relative humidity4.1 Measurement parameters and units a) Atmospheric temperature. a physical quantity that indicates the degree of coldness and heat of the air, the symbol is T, and the unit is ℃. b) Atmospheric humidity. the physical quantity that represents the moisture content and humidity in the air, the symbol is H, and the unit is %RH. 4.2 Apparatus Temperature and humidity sensor. The measurement range of environmental parameters and the accuracy requirements of the instrument are shown in Table 1. Note 1.Other measuring instruments conforming to this standard can also be used. Note 2.In actual monitoring, sensor sampling points and sampling boards should be evenly distributed around the inlet and outlet lines and enclosures of the power transmission and transformation equipment, and the power transmission and transformation equipment should also be installed (such as Be applicable). The specific installation location can be installed according to customer requirements. Since the transmission and transformation equipment has high voltage and strong current in actual operation, it should be avoided The installation of monitoring equipment caused short-circuit accidents of power transmission and transformation equipment. 4.3 Installation and maintenance of the instrument 4.3.1 Installation The instrument probe should be 1.50m above the ground. To enable the sensor to eliminate environmental influences for more accurate measurement and extend its lifespan Therefore, the sensor should be equipped with a radiation shield or installed in a louver box. 4.3.2 Maintenance Maintenance of temperature and humidity sensor. --Dust will fall on the head of the sensing part during the use of the sensor. At this time, use a small brush to gently brush it; --Avoid long-term exposure of the sensor to some chemical materials and gases.5 Solar radiation5.1 Measurement parameters a) The total radiation intensity at an angle of 0°, in watts per square meter, W/m2; b) Ultraviolet radiation intensity at an angle of 0°, in watts per square meter, W/m2; c) Infrared radiation intensity at 0° angle, in watts per square meter, W/m2; d) The total radiation intensity at a 45° angle, in watts per square meter, W/m2; e) Ultraviolet radiation intensity at a 45° angle, in watts per square meter, W/m2; f) Infrared radiation intensity at a 45° angle, in watts per square meter, W/m2; g) The total radiation intensity at the latitude angle, the unit is watts per square meter, W/m2; h) Latitude angle ultraviolet radiation intensity, in watts per square meter, W/m2; i) Infrared radiation intensity at latitude angle, in watts per square meter, W/m2. 5.2 Apparatus Radiometer (total radiometer, ultraviolet radiometer, infrared radiometer). The measurement range and sensitivity requirements of the radiometer are shown in Table 2. 5.3 Installation and maintenance of the instrument 5.3.1 Installation The radiometer should be placed in the test field, and the sensing surface should not be affected by any obstacles. If the ground site conditions do not meet the requirements, the instrument can be The device is placed on the roof platform where the sky conditions meet the requirements. The radiometer should be placed on a special stand. The stand should be made of firm, non-deformable and easy to fix the radiometer, usually painted Gray or black, the height of the platform from the ground is 1.5m. During installation, the observation fields of various radiometers must not affect each other to minimize damage Underlying surface. After the radiometer is installed and adjusted, connect the output end to the indoor recorder with a special shielded cable (waterproof). The wires should be arranged neatly, firm. Generally, cables (or wires) should be led indoors from special trenches or underground pipes in the test site. In areas prone to thunderstorms, not empty Erect cables in the middle. The end of the cable connected to the radiometer should be firmly fixed on the stand to minimize breakage and prevent wear and tear in windy weather When interrupted, all connections of the cable must be firmly welded and waterproof. The radiometer is placed on a dedicated stand with the base kept level. The 0° angle pyranometer is placed on a dedicated stand, and the angle between the base and the horizontal plane is 45°. The pyranometer with a 45° angle is placed on a dedicated stand, and the angle between the base and the horizontal plane is 45°. The latitude angle pyranometer is placed on a dedicated stand, and the angle between the base and the horizontal plane is the local latitude angle. 5.3.2 Maintenance Equipment maintenance mainly includes. a) Check the level condition of the instrument and the good condition of the sensing surface and glass cover every day; b) The parts and protection devices are kept clean. Use a lens brush to remove frost, fog, snow and raindrops on the glass cover; c) Strengthen inspections in severe weather, and deal with problems promptly when found; d) The glass cover must not enter water, and there must be no condensation inside. Through the glass window of the dryer, observe whether the silica gel is damp or not. Should be replaced in time; e) Cover the metal cover when it rains, snow or hail, and remove the cover in time when it stops.6 Rainfall6.1 Measurement parameters and units Precipitation. All forms of water droplets in the atmosphere (no matter liquid or solid, including rain, snow, frost, hail, rime, rime, etc.) fall to Ground process. Generally refers to rain and snow. 6.2 Apparatus Rain gauge. 6.3 Installation and maintenance of the instrument 6.3.1 Installation a) The rain gauge is placed on a fixed shelf in the observation field. Keep the mouth of the device level, 0.7m above the ground. When the snow depth in winter exceeds 0.3m, The instrument should be moved to a shelf where the height of the rain gauge from the ground can reach (1.0 ~ 1.2) m. b) When it snows in winter, unscrew the funnel from the mouth of the device (if you use an old rain gauge, you need to change the snow bearing mouth), remove the water bottle, and use it directly The snow-bearing port and the water storage tank contain precipitation. 6.3.2 Maintenance Equipment maintenance includes. a) Clear the debris in the water container in time; b) Regularly check the placement of rain gauges and correct them in time;7 Salt precipitationRefer to GB/T 19292.3-2003 for the measurement method of salt sedimentation in the air.8 Atmospheric corrosive medium concentration8.1 Overview This standard adopts the membrane filter method, and other measurement methods whose accuracy is not lower than that of the membrane method can also be used. 8.2 Monitoring method of sulfur dioxide concentration 8.2.1 Principle Provides a method for measuring sulfur dioxide in the air using glass fiber filter membranes to record sulfur dioxide over a period of time The average concentration. It is suitable for evaluating the corrosion effect of sulfur dioxide in the air. The filter membrane impregnated with potassium percarbonate solution is exposed to the atmosphere and reacts with sulfur dioxide in it to form sulfate. Determination of the sulfuric acid produced The salt content calculates the sulfur dioxide concentration. The results are expressed in milligrams of sulfur dioxide per day on the 100cm2 filter membrane area. The reaction equation is as under. 8.2.2 Preparation of solution 8.2.2.1 General description Unless otherwise specified, the chemical reagents used in this standard are all analytical reagents, the water used is deionized water, and the solution preparation temperature is 25℃ ±2K. 8.2.2.2 30% (m/V) potassium carbonate solution Weigh 75g of anhydrous potassium carbonate, dissolve it in water, add 7.0mL of glycerin, transfer to a 250mL volumetric flask after dissolution, and dilute to the mark with water. 8.2.2.3 1% (m/V) hydrogen peroxide solution Measure 3.3 mL of 30% hydrogen peroxide and dilute to 100 mL with water. 8.2.2.4 Hydrochloric acid solution (C(Hcl)=0.4mol/L) Measure 33mL of concentrated hydrochloric acid (ρ = 1.179g/cm3) and dilute to 1000mL with water. 8.2.2.5 10% (m/V) barium chloride solution Weigh 10g of barium chloride, dissolve it in water, and dilute to 100mL. 8.2.2.6 1.0% (m/V) silver nitrate solution Weigh 1.0g silver nitrate, dissolve it in water, and dilute to 100mL. 8.2.2.7 Ethylenediaminetetraacetic acid-ammonia solution Weigh 7.0g of sodium ethylenediaminetetraacetate (EDTA-Na2), dissolve it in water, add 5.0mL of ammonia, and dilute to 1000mL. 8.2.2.8 (1 4) Hydrochloric acid solution Mix 1 volume of concentrated hydrochloric acid (ρ = 1.179g/cm3) with 4 volumes of water to obtain (1 4) hydrochloric acid solution. 8.2.3 Apparatus 8.2.3.1 Sampling device Use a filter holder to fix the filter membrane for sampling, as shown in Figure 1.The filter frame can be welded at 90° angle with two 120mm×120mm polyethylene plastic plates Become. In order to facilitate the placement of the filter membrane, another welded polyethylene plastic plate with a height of 30mm and an inner diameter of 78mm～80mm is welded on one side of the polyethylene plastic plate welded at a right angle. Three bolt holes are drilled on the short tube of polyethylene plastic, which form 120° with each other, and the distance between each hole is 15mm from the surface of the plastic board. When using, put the plastic dish upside down Three bolts are used to fix the inside of the short polyethylene plastic tube of the filter frame. Note 1.Plastic dish. inner diameter is 72mm, height is 10mm. Note 2.Plastic washers. thickness 1mm～1.5mm, inner diameter 50mm, outer diameter 72mm, can be precisely matched with plastic dishes. Figure 1 Membrane holder 8.2.3.2 Analytical balance The resolution is 0.1mg. 8.2.3.3 Glass sand core crucible G4 type. 8.2.4 Sampling preparation Before sampling, carefully check each filter membrane for pinholes, cracks, unevenness, particles or other defects under the light source, and it can be brushed with a small brush Remove particles and debris on the surface of the filter membrane. After the filter membrane is numbered, it is accurately weighed after drying in a desiccator at 25°C for 24 hours. Filter during sampling Clamp it with tweezers and place it in a plastic dish. After sampling, remove the filter membrane and weigh it. It is strictly forbidden to touch the filter membrane directly with your hands. For the filter membrane immersed in the solution, in addition to paying attention to the above problems, it is also necessary to observe whether the color of the filter membrane changes due to light, heat, and humidity Or become brittle or deformed. If this phenomenon occurs, it should be discarded. 8.2.5 Sampling 8.2.5.1 Preparation of filter membrane Cut the ultrafine glass fiber filter membrane into a 70mm diameter disc, and place it flat on the mouth of the 150mL beaker with the wool side up. Use a graduated pipette to add evenly 30% potassium carbonate solution 1.0mL on the filter membrane, so that the solution gradually spread from the center of the filter membrane into a circle with a diameter of not less than 50mm. Leave for 2min～ After 3 minutes, put the filter membrane with the wool side up and put it in the plastic dish shown in Figure 1 (if the light side is up, the result will be lower), press the plastic gasket, and then Then fix the plastic dish on the filter holder with its opening facing down. 8.2.5.2 Stakeout Place 3 to 4 filter membrane racks at different locations, and the sampling height is close to the height of the test sample. In addition to considering the impact of meteorological factors and In addition to the reasonable layout of the sampling sites, care should be taken not to approach the chimney and other sulfur-containing gas pollution sources, and try to avoid interference by human factors. Disturb. The storage time is 30d±2d each time. During sampling, according to the degree of dryness of the filter membrane, the filter membrane can be wetted with deionized water to ensure the The absorption liquid can fully react with the sulfur dioxide in the air. One month later, put the filter membrane in a plastic bag and bring it back to the laboratory. The average value is the concentration of sulfur dioxide in that month. It is recommended to stake out at 9 o'clock in the morning on the 1st of each month and collect it at the end of the month. In this way, 3~4 samples can be obtained every month The results are analyzed, and the average of the analysis results is the concentration of sulfur dioxide in the air for that month. When setting out and receiving samples, record and check the setting out location, Filter number and time (month, day, hour). 8.2.6 Analysis steps 8.2.6.1 Take the removed filter membrane along the inner edge of the plastic washer, and use a knife to carve a sample membrane with a diameter of 50mm, place it in a 150mL beaker, and lean against it. On the glass rod, drip 1% to 1.5 mL of 1% hydrogen peroxide solution from the mouth of the beaker, wait for the hydrogen peroxide to fully wet the filter membrane, and let it stand for 10 minutes to filter The K2SO3 on the film is fully oxidized to K2SO4.Cover with a watch glass, and then carefully add about 20 mL of 0.4mol/L hydrochloric acid solution from the mouth of the beaker. To be After the carbon dioxide has completely escaped, the filter membrane is mashed and heated in a near-boiling state for 2min to 3min. 8.2.6.2 Rinse the watch glass into the beaker with a small amount of water, remove the watch glass, and filter the sample solution into a 150 mL beaker with medium-speed quantitative filter paper. When filtering, only pour out the supernatant and try not to let the broken filter membrane enter the funnel. Wash the filter residue 5 to 6 times with warm water by pouring, each time Carefully rinse the cup wall and glass rod. Finally, a total of 60mL-100mL of filtrate and washing solution were obtained. 8.2.6.3 Heat the filtrate in a boiling water bath (the solution must not boil) and concentrate to 40mL (when the concentration of sulfur dioxide is high, the volume can be 60mL～ 80mL). 8.2.6.4 Under heating, stir and add 1 mL of 10% barium chloride solution (18 to 20 drops) dropwise. At the beginning, stir quickly and slowly, In order to obtain coarse barium sulfate precipitation. After the barium sulfate settles, add 1 to 2 drops of barium chloride solution to the supernatant to check the precipitation Is it complete? Heat and settle for 30min, stir for several times, cool, stand for 2h or overnight, then filter. 8.2.6.5 Filter the barium sulfate precipitate into a G4 glass sand core crucible that has a constant weight, filter by suction, and wash the beaker several ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of NB/T 10189-2019_English be delivered?Answer: Upon your order, we will start to translate NB/T 10189-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of NB/T 10189-2019_English with my colleagues?Answer: Yes. 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