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ORT's Warm-Damp Environmental Conditions And Technical Requirements For Power Grid State Monitoring Devices

The Warm-Damp Environmental Conditions and Technical Requirements for Power Grid State Monitoring Devices drafted by ORT was authoritatively released by the National Energy Administration

Ⅰ. Basic situation of warm-damp environmental conditions and technical requirements for power grid state monitoring devices standard

The name of the standard:

Warm-Damp Environmental Conditions and Technical Requirements for Power Grid State Monitoring Devices

Standard No.:

NB/T 10280-2019(中华人民共和国能源行业标准)

NB/T 10280-2019 (Energy Industry Standards of the People's Republic of China)

This standard was released on November 4, 2019, and implemented on May 1, 2020.

The range of standards:

This standard specifies the technical requirements, reliability test methods, signs, packaging, and storage of the state monitoring device for power grids when used under humid and hot environmental conditions.

This standard is applicable to the state monitoring devices for power grids used in areas with two types of damp heat and sub-humid heat specified in GB/T 4797.1-2018.

Test Requirement:

1. Low temperature test

Climate zone

Place of use

Severity level

Experimental procedure

Damp heat

No weather protection place

-5℃;

Duration: 16h

Carry out according to test Ad, put the test sample into the test chamber at room temp., and then adjust the temp. to -5℃±2℃. After the test sample reaches a stable temp. under this condition, it is energized and operated under actual working conditions to verify its ability to start the machine at low temp. and continue to be exposed under this condition for 16h.

Weather protection place

Sub-humid heat

No weather protection place

-10℃;

Duration: 16h

Carry out according to test Ad, put the test sample into the test chamber at room temp., and then adjust the temp. to -10℃±2℃. After the test sample reaches a stable temp. under this condition, it is energized and operated under actual working conditions to verify its ability to start the machine at low temp. and continue to be exposed under this condition for 16h.

Weather protection place

-5℃;

Duration: 16h

Carry out according to test Ad, put the test sample into the test chamber at room temp., and then adjust the temp. to -5℃±2℃. After the test sample reaches a stable temp. under this   condition, it is energized and operated under actual working conditions to   verify its ability to start the machine at low temp. and continue to be   exposed under this condition for 16h

2. High temperature test

Place of use

Severity level

Experimental procedure

No weather protection place

55℃;

Duration: 16h

Carry out according to test Bd, put the test sample into a test chamber at room temp., and then adjust the temp.   to 55℃±2℃. After the test sample reaches a stable temp. under this condition,   it is energized and operated under actual working conditions to verify its ability to start the machine at a high temp. and continue to be exposed under this condition for 16h.

Weather protection place

45℃;

Duration: 16h

Carry out according to test Bd, put the test sample into the test chamber at room temp., and then adjust the temp. to 45℃±2℃. After the test sample reaches a stable temp. under this condition, it is energized and operated under actual working conditions to verify its ability to start the machine at a high temp. and continue to be exposed under this condition for 16h.

3. temp. Change Test

Climate zone

Place of use

Severity level

Experimental procedure


Damp       heat


No weather protection place

Low temp.: -5℃;

High temp.: 55℃; Temp. Change rate:   1 K/min; Duration: 3h; Number of cycles: 2

According to test Nb, the air temp. in the test, the chamber is reduced to -5℃±2℃ at a rate of 1±0,2Kmin. After the temp. in the chamber reaches a stable temp., the test sample is exposed to this temp. for 3h. Then the air temp. in the test, the chamber is increased to   55℃±2℃ at a rate of 1±0.2K/min. After the temp. in the chamber reaches a   stable level, the test sample is exposed to this temp. for 3h. Then reduce the air temp. in the test chamber to 25℃±2℃ at a rate of 1±0.2K/min. Perform   2 cycles of the above test.

Weather protection place

Low temp.: -5°C;

High temp.: 45℃;

Temp. change rate:

1 K/min

Duration: 3h;

Number of cycles: 2

According to test Nb, the air temp.   in the test, the chamber is reduced to -5℃±2℃ at a rate of 1±0.2 K/min. After the temp. in the chamber is stable, the test sample is exposed to this temp. for   3 hours. Then the air temp. in the test, the chamber is increased to 45℃±2℃ at a   rate of 1±0.2K/min. After the temp. in the chamber reaches a stable level,   the test sample is exposed to this temp. for 3h. Then reduce the air temp. in the test chamber to 25℃ ± 2℃ at a rate of 1±0.2K/min. Perform 2 cycles of the above test.


No weather

Sub-humid heat protection   place


Low temp.: -10℃;

High temp.: 55℃;

temp. change rate:

1 K/min

Duration: 3h;

Number of cycles: 2

According to test Nb, the air temp.   in the test, the chamber is reduced to -10℃±2℃ at a rate of 1±0.2K/min. After the temp. in the chamber reaches a stable level, the test sample is exposed to this temp. for 3h. Then the air temp. in the test, the chamber is increased to   55℃±2℃ at a rate of 1±0.2K/min. After the temp. in the chamber reaches a   stable level, the test sample is exposed to this temp. for 3h. Then reduce the air temp. in the test chamber to 25℃±2℃ at a rate of 1 ± 0.2K/min.   Perform 2 cycles of the above test.

Weather protection place

Low temp.: -5°C;

High temp.: 45℃;

temp. change rate:

1 K/min

Duration: 3h;

Number of cycles: 2

According to test Nb, the air temp.   in the test, the chamber is reduced to -5℃±2℃ at a rate of 1±0.2 K/min. After the temp. in the chamber is stable, the test sample is exposed to this temp. for   3h. Then the air temp. in the test, the chamber is increased to 45℃±2℃ at a rate of 1±0.2 K/min. After the temp. in the chamber reaches a stable level, the product test sample is exposed to this temp. for 3h. Then reduce the air temp. in the test chamber to 25℃±2℃ at a rate of 1±0.2 K/min. Perform 2 cycles of the above test.

5. Constant Damp heat steady state test

Severity level

Experimental procedure

temp.: 40℃±2℃;

Relative humidity: (93±3)%;

Test time: 96h

Put the test sample into the effective space of the test chamber, preheat it first, and raise the temp. to   40℃±2℃ without humidification. When the temp. of the test sample reaches a   stable level, adjust the relative humidity too (93±3)% in the chamber to within 2h; keep for 96h at a temp. of 40℃±2℃ and relative humidity of   (93±3)%, then reduce the relative humidity to 73%~77% within 05h, and then adjust the temp. to room temp. within 0.5h.

6.1 Salt mist Test

Bottom metal material

Protection layer category

Eligibility requirements

Duration

Carbon steel

Zn

No white or gray-black, brown   corrosion appear

48h

alloy steel

Zinc chromium coating

No white or gray-black, brown   corrosion appear

96h

Copper and copper alloys

Nichrome

No off-white or green corrosion   appear

96h

Ni

No off-white or green corrosion   appear

48h

Ti

No off-white or green corrosion appear

Ag

No off-white or green corrosion   appear

24h

Aluminum and aluminum alloy

Anodizing

No off-white corrosion appear

48h

6.2 Alternating Salt mist Test

Severity level

Experimental procedure

According to GB/T 2423.18—2012   severity level (2)

Before the test, check the insulation resistance of the product and perform a functional test according to the regulations. The test sample is put into the salt mist chamber according to the state of use, and it is misted continuously for 2h under the temp. condition of 15℃~35℃. At the end of the misting process, put the equipment under test into a humid chamber with a temp. of 40℃±2℃ and relative humidity of (93±3)% according to the state of use for 20h-22h.   Perform 3 cycles of the above test.

7. Mold testing services

Severity level

Experimental procedure

According to GB/T 2423.16-2008 test   method 1, 28d

Select the parts of the equipment as test samples. After the test, the visual inspection shall be carried out   immediately according to the requirements of relevant specifications

8. Vibration Test

a) Test purpose: to assess the adaptability of the test sample to the vibration environment during operation.

b) According to the standard: according to the regulations in GB/T 11287.

c) Test process and performance requirements: Carry out a vibration endurance test of severity level 1 on the monitoring device. After the test, the device should not have loose fasteners or mechanical damage. Other performance requirements are the same as 5.1.

9. Shock Test

a) Test purpose: to assess the adaptability of the test sample to the impact environment during operation.

b) According to the standard: according to the regulations in GB/T 14537.

c) Test process and performance requirements: Carry out a severity level 1 impact durability shock vibration testing on the monitoring device. After the test, the device should not have loose fasteners or mechanical damage. Other performance requirements are the same as 5.1.

10. Crash test service

a) Crash test service purpose: to assess the adaptability of the test sample to the collision environment during operation.

b) According to the standard: according to the regulations in GB/T 14537.

c) Test process and performance requirements: Carry out a severity level 1 crash test on the monitoring device. After the test, the device should not have loose fasteners or mechanical damage. Other performance requirements are the same as 5.1.

11. Electromagnetic compatibility test

Application parts

Test process and performance   requirements

Shell

Electrostatic discharge immunity   test

The electrostatic discharge immunity test is carried out according to the method specified in GB/T 17626.2, and the severity level is 4. In the case of interference, the device should function or perform normally within the technical limit during the test period and after the test; if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

Radiofrequency electromagnetic   field radiation immunity test

The radiofrequency electromagnetic field immunity test is carried out according to the method specified in GB/T   17626.3, and the severity level is 3. In the case of interference, the device shall function or perform normally within the limits of the technical requirements during and after the test.

Power frequency magnetic field   immunity test

The power frequency magnetic field immunity test is carried out according to the method specified in GB/T   17626.8, and the severity level is 5. In the case of interference, the device shall function or perform normally within the limits of the technical requirements during and after the test.

Pulse magnetic field immunity test

The pulsed magnetic field immunity test is carried out according to the method specified in GB/T 176269, and the severity level is 5. In the case of interference, the device shall function or perform normally within the limits of the technical requirements during and after the test.

Damped oscillating magnetic field   immunity test

The damped oscillation magnetic field immunity test is carried out according to the method specified in GB/T   17626.10, and the severity level is 5. In the case of interference, the device shall function or perform normally within the limits of the technical requirements during and after the test.

AC power supply

a) Voltage sag immunity test.

The voltage sag immunity test is carried out according to the method specified in GB/T 17626.11, and the severity level is 3. In the case of interference, the device should function or perform normally within the technical limitations during and after the test; if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

b) Electrical fast transient pulse   group immunity test

The electrical fast transient pulse group immunity test is carried out in accordance with the method specified in   GB/T 17626.4, and the severity level is 4. In the case of interference, the device should function or perform normally within the technical limitations during and after the test; if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

c) Surge (impact) immunity test.

The surge (impact) immunity test is carried out according to the method specified in GB/T 17626.5, and the severity level is 4. In the case of interference, the device should function or perform normally within the technical limitations during and after the test; if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

d) Conducted disturbance immunity test   induced by radiofrequency field

The conducted disturbance immunity test induced by the radiofrequency field is carried out according to the method specified in GB/T 17626.6, and the severity level is 3. In the case of   interference, the device shall function or perform normally within the limits   of the technical requirements during and after the test

DC power supply

a) Electrical fast transient pulse group immunity test.

The electrical fast transient pulse group immunity test is carried out in accordance with the method specified in   GB/T 17626.4, and the severity level is 4. In the case of interference, the device should function or perform normally within the technical limitations during and after the test; if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

b) Surge (impact) immunity test.

The surge (impact) immunity test is carried out according to the method specified in GB/T 17626.5, and the severity level is 4. In the case of interference, the device should function or perform normally within the technical limitations during and after the test; if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

c) Conducted disturbance immunity test induced by radiofrequency field.

The conducted disturbance immunity test induced by the radiofrequency field is carried out according to the method specified in GB/T 17626.6, and the severity level is 3. In the case of interference, the device shall function or perform normally within the limits of the technical requirements during and after the test.

I/O signal/control (including the   connection line of the functional ground port)

Immunity Test of Electrical Fast   Transient Pulse Group

The electrical fast transient pulse group immunity test is carried out in accordance with the method specified in GB/T   17626.4, and the severity level is 4. In the case of interference, the device should function or perform normally within the technical limitations during and after the test: if the function or performance is temporarily reduced or lost, it should be able to recover by itself.

b) Conducted disturbance immunity test induced by radiofrequency field.

The conducted disturbance immunity test induced by the radiofrequency field is carried out according to the method specified in GB/T 17626.6, and the severity level is 3. In the case of   interference, the device shall function or perform normally within the limits   of the technical requirements during and after the test

12. Shell Protection Test

Place of use

Protection degree IP

Indoor

IP31

Outdoor

IP54

13. Solar Radiation Test

Severity level

Experimental procedure

Temperature: 55℃±2℃;

Cycle times: 2 times (48h)

Carry out according to procedure B,   and cycle twice as shown in Figure 2 (the temperature in the test chamber is raised or lowered at a rate of less than 1K/min), where the irradiance is   1120W/m² (300mm~3000mm), and the radiation should meet the spectral distribution requirements in GB/T 2423.24-2013, t1=25℃, t2=55℃.


Ⅱ. The units involved in drafting warm-damp environmental conditions and technical requirements for power grid state monitoring devices standards

Warm-Damp Environmental Conditions And Technical Requirements For Power Grid State Monitoring Devices Standard


Ⅲ. ORT participated in the drafting of the published warm-damp environmental conditions and technical requirements for power grid state monitoring devices standards

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GB/T 35774-2017《Standard practice for performance testing of shipping containers》

2. GB/T 4857.1-2019《包装 运输包装件基本试验 第一部分:试验时各部位的标示方法》

GB/T 4857.1-2019《Packaging. Basic tests for transport packages. Part one: Identification of parts when testing》

3. GB/T 4798.1-2019《环境条件分类 环境参数组分类及其严酷程度分级 第1部分:贮存》

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4. GB/T 2421-2020《环境试验 概述和指南》

GB/T 2421-2020《Environmental testing. General and guidance》

5. GB/T 2423.27-2020《环境试验 第2部分:试验方法 试验方法和导则:温度/低气压或温度/湿度/低气压综合试验》

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6. GB/T 2423.51-2020《环境试验 第2部分:试验方法 试验Ke:流动混合气体腐蚀试验》

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7. GB/T 32065.8-2020 《海洋仪器环境试验方法 第8部分:温度变化试验》

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8. GB/T 32065.10-2020《海洋仪器环境试验方法 第10部分:盐雾试验》

GB/T 32065.10-2020《Environmental test methods for oceanographic instruments. Part 10: Salt fog test》

9. GB/T 4797.9-2021《环境条件分类 自然环境条件 贮存、运输和使用过程中测得的冲击和振动数据》

GB/T 4797.9-2021《Classification of environmental conditions. Natural environmental conditions. Shock and vibration data measured during storage, transportation and use》

10. GB/T 2423.33-2021《环境试验 第2部分:试验方法 试验Kca:高浓度二氧化硫试验》

GB/T 2423.33-2021《Environmental testing. Part 2: Test Method. Test Kca: High concentration sulfur dioxide》

11. GB/T 2423.18-2021《环境试验 第2部分:试验方法 试验Kb:盐雾、交变(氯化钠溶液)》

GB/T 2423.18-2021 《Environmental testing. Part 2: Test methods. Test Kb: Salt mist, cyclic(sodium chloride solution)》

12. NB/T 10279-2019《输变电设备 湿热环境条件》

NB/T 10279-2019《Heat and hot environmental conditions for power transmission and transformation equipment》

13. NB/T 10280-2019《电网用状态监测装置 湿热环境条件与技术要求》

NB/T 10280-2019《Condition monitoring device for power grid, Humid and hot environmental conditions and technical requirements》

14. YZ/T 0174-2020《冷链寄递保温箱技术要求》

YZ/T 0174-2020《Technical requirements for cold chain delivery incubator》

15. T/CPF 0012-2020 《快递小型运输包装件试验导则》

T/CPF 0012-2020《Test guidelines for express small transport packages》

16. T/CPF 0011-2020《电商物流大家电运输包装件试验导则》

T/CPF 0011-2020《E-commerce logistics test guidelines for major appliances transport packages》

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