1 General
1.0.1 In order to standardize the test methods of highway electrical and mechanical engineering, this regulation is formulated.
1.0.2 These regulations are applicable to the field testing of all stages of construction and operation management of highway electromechanical engineering.
1.0.3 The instruments and equipment used in this protocol should be [by the corresponding measurement department] regular measurement verification or measurement calibration, its measurement performance should meet the requirements of this protocol. When using instruments and equipment different from the provisions of this protocol, its technical indicators should meet or better than the requirements of this protocol.
1.0.4 Before the test, it shall be confirmed that the electromechanical facilities under test have the test conditions and the test instruments and equipment are in normal working condition.
Article Description
The test parameters of electromechanical engineering generally reflect the overall performance or key performance indicators of the system. The state of the electromechanical facilities under test before the test shall meet the construction or operation and management requirements of the electromechanical system as well as the purpose and needs of the test. Before testing in high altitude and alpine areas, the impact of environmental factors on the normal working condition of the test instruments and equipment should be taken into consideration and the test results should be corrected according to the instructions for use if necessary.
1.0.5 The regulations for safe operation shall be observed during the test.
2 Terminology and abbreviations
2.1 Terminology
2.1.1 traffic incident
The abnormal traffic conditions and behaviour on a road that affects vehicle movement and traffic safety, mainly referring to typical events such as stopping, reversing traffic, pedestrians, throwing objects, driving away, etc.
2.2 Abbreviations
3 General test
T 8001-2021 Earth resistance test
1 Scope of application
1.0.1 This method is applicable to the testing of the earth resistance of outfield facilities of highway electrical and mechanical works.
Article description
Highway electromechanical engineering outfield facilities grounding usually refers to the grounding device of the electromechanical facilities set along the highway, excluding the building grounding device.
2 instrumentation
2.0.1 Digital grounding resistance meter or analog grounding resistance meter: accuracy should not be lower than the current "grounding resistance meter test procedure".
The accuracy should not be lower than the current "Grounding resistance meter test procedure" (JJG 366) stipulates level 3.
3 Test method
3.0.1 Before the test, make sure that the insulation of the test leads is not damaged or cracked and that the surface of the earth rod is clean.
3.0.2 The instrumentation should be zeroed and relevant parameters such as compensation resistance should be set before the test.
3.0.3 In accordance with the requirements for the use of the apparatus and equipment, the potential and current earth rods should be inserted into the soil in turn from the earth pole under test, and the test leads should be used to connect the earth resistance meter test port reliably to the corresponding earth pole under test, potential and current poles.
4 Monitoring facilities testing
T 8101-2021 Traffic flow relative error test
1 Scope of application
1.0.1 This method applies to vehicle detectors, traffic volume survey equipment and other facilities for the relative error test of traffic flow.
2Apparatus and equipment
2.0.1 Counter: the number of display digits should not be less than 4 digits.
3 Test method
3.0.1 It should be confirmed that the traffic flow data collected by the equipment under test can be read in real time.
3.0.2 The tester shall operate the counter and the equipment under test to count the traffic flow through the test area section at the same time.
3.0.3 The test shall be stopped when the volume of traffic recorded by the counter reaches the number specified in the test and the count value of the counter and the count value of the equipment under test shall be recorded when the test is stopped.
4 Test requirements
5 Communication facility test
T 8201-2021 Optical fibre link splice loss and total loss test (backward scattering method)
1 Scope of application
1.0.1 This method is suitable for testing the total loss, splice loss and average splice loss of optical fibre links using the backscatter method.
2Apparatus
T 8202-2021 Optical fibre link total loss test (insertion loss method)
1 Scope of application
1.0.1 This method is suitable for testing the total loss of optical fibre links using the insertion loss method.
2 Apparatus and equipment
2.0.1 Stabilized light source for optical transmission: long time (≥5h) stability should be better than ±0.2dB; short time (15min) stability should be better than ±0.02dB; wavelength range should include the working wavelength of the fiber under test.
Article description
The metrological performance requirements of the optical transmission stabilized light source refer to the "optical transmission stabilized light source calibration procedures" (JJG 958).
2.0.2 optical power meter for communications: optical power measurement range should cover - 60 ~ +27dBm; optical power relative to the indicated value of the error ≤ 10%; wavelength range should include the working wavelength of the fiber being measured.
Article description
Optical power meter for communications measurement performance requirements refer to the "optical power meter for communications verification procedures" (JJG 965).
3 Test method
3.0.1 A short section of optical fibre of the same - type as the optical fibre under test shall be used as the reference fibre, and a stable light source shall be connected to the optical power meter test port through the reference fibre.
6 Toll facility testing
T 8301-2021 Lane software processing flow and basic function test
1 Scope of application
1.0.1 This method applies to the testing of entrance and exit toll lane processing flows and basic functions.
Article description
Toll lanes include ETC lanes, mixed ETC/MTC lanes and MTC lanes, etc.
2 Test methods
2.0.1 The current version information of the toll lane software and system parameters shall be recorded prior to the test.
2.0.2 The data reception function shall be tested in accordance with the following provisions:.
1 Verify the system parameters and related information issued by the toll station or toll (sub)centre to the toll lane under its jurisdiction in the toll lane under test.
2 Verify the system clock in the toll lane under test.
3 Carry out vehicle handling process operations in the tested exit lane to verify the implementation of the toll information.
4 Carry out concessionary vehicle processing operations in the exit lane under test to verify the implementation of concessionary information.
7 Testing of power supply and distribution facilities
T 8401-2021 Power quality testing
1 Scope of application
1.0.1 This method applies to the testing of power quality parameters in the 50 Hz AC power supply system on the low-voltage 380 V side of the transformer, including output voltage, output frequency, frequency deviation, voltage deviation, three-phase voltage unbalance, harmonics, etc.
Article description
Usually there are both low-voltage and medium-voltage distribution facilities in the power supply and distribution room, this method is only for the testing of the power quality parameters on the low-voltage side of the transformer. The test of power quality parameters on the low voltage side of the transformer.
2 Instrumentation
2.0.1 The power quality analyser shall meet the following technical requirements:
1 Level: A level.
2 Maximum permissible voltage error: ±0.1%.
3 Maximum permissible error of frequency: ±0.01Hz.
4 Harmonic measurement: DC and 1st to 50th harmonics.
5The maximum allowable error of three-phase voltage unbalance:±0.15%.
6Maximum permissible error of three-phase current unbalance:± 1%.
8Lighting facility test
T 8501-2021 Road illuminance test
1 Scope of application
1.0.1 This method applies to the road surface (excluding tunnel road surface) average illuminance, illuminance total uniformity of the test.
2 Apparatus and equipment
2.0.1 Light illuminance meter: measurement performance should meet the current "light illuminance meter calibration regulations" (JJG245) provides a level of requirements; resolving power ≤ 0. llx.
2.0.2 tape measure (steel or fiber): measurement range 0 ~ 50m; steel tape measure performance should meet the current "steel tape measure testing procedures" (JJG4) requirements of level II; fiber tape measure performance should meet the current "fiber tape measure, measuring rope testing procedures" (JIG5) requirements of level 2.
3 Test methods
3.0.1 The test area longitudinal should be the area between two light poles on the same side of the road being tested. When testing the road lighting of the toll lane, the longitudinal area shall be the area of the toll lane located under the toll canopy.
Description
The test area longitudinal is along the direction of travel.
3.0.2 When the luminaires are placed in a single-sided manner, the test area shall be the entire width of the road in the horizontal direction.
9 Testing of electrical and mechanical installations in tunnels
T 8601-2021 Average wind speed test for tunnel cross-sections
1 Scope of application
1.0.1 This method is applicable to the test of the average wind speed of a tunnel section when the tunnel ventilation system is operating according to the design working conditions.
2 Instrumentation.
2.0.1 Digital anemometer: the maximum measured wind speed should not be less than 30m/s; the starting wind speed should not be greater than 0.5m/s; the maximum permissible error is ± (0.5m/s + 0.02xv) (v is the standard wind speed).
2.0.2 Tower type level scale: nominal length 5m; measurement performance should meet the current "level scale calibration regulations" (JJG8) provisions.
2.0.3 Steel tape measure: measuring range 0~ 10m; measuring performance should meet the current "steel tape measure testing procedures" (JJG4) requirements of class II.
1 General
2 Terminology and abbreviations
3 General test
4 Monitoring facilities testing
5 Communication facility test
6 Toll facility testing
7 Testing of power supply and distribution facilities
8Lighting facility test
9 Testing of electrical and mechanical installations in tunnels
Standard
JTG/T 3520-2021 Test Methods of Electrical and Mechanical Engineering for Highway (English Version)
Standard No.
JTG/T 3520-2021
Status
valid
Language
English
File Format
PDF
Word Count
50000 words
Price(USD)
1500.0
Implemented on
2022-3-1
Delivery
via email in 1~5 business day
Detail of JTG/T 3520-2021
Standard No.
JTG/T 3520-2021
English Name
Test Methods of Electrical and Mechanical Engineering for Highway
1 General
1.0.1 In order to standardize the test methods of highway electrical and mechanical engineering, this regulation is formulated.
1.0.2 These regulations are applicable to the field testing of all stages of construction and operation management of highway electromechanical engineering.
1.0.3 The instruments and equipment used in this protocol should be [by the corresponding measurement department] regular measurement verification or measurement calibration, its measurement performance should meet the requirements of this protocol. When using instruments and equipment different from the provisions of this protocol, its technical indicators should meet or better than the requirements of this protocol.
1.0.4 Before the test, it shall be confirmed that the electromechanical facilities under test have the test conditions and the test instruments and equipment are in normal working condition.
Article Description
The test parameters of electromechanical engineering generally reflect the overall performance or key performance indicators of the system. The state of the electromechanical facilities under test before the test shall meet the construction or operation and management requirements of the electromechanical system as well as the purpose and needs of the test. Before testing in high altitude and alpine areas, the impact of environmental factors on the normal working condition of the test instruments and equipment should be taken into consideration and the test results should be corrected according to the instructions for use if necessary.
1.0.5 The regulations for safe operation shall be observed during the test.
2 Terminology and abbreviations
2.1 Terminology
2.1.1 traffic incident
The abnormal traffic conditions and behaviour on a road that affects vehicle movement and traffic safety, mainly referring to typical events such as stopping, reversing traffic, pedestrians, throwing objects, driving away, etc.
2.2 Abbreviations
3 General test
T 8001-2021 Earth resistance test
1 Scope of application
1.0.1 This method is applicable to the testing of the earth resistance of outfield facilities of highway electrical and mechanical works.
Article description
Highway electromechanical engineering outfield facilities grounding usually refers to the grounding device of the electromechanical facilities set along the highway, excluding the building grounding device.
2 instrumentation
2.0.1 Digital grounding resistance meter or analog grounding resistance meter: accuracy should not be lower than the current "grounding resistance meter test procedure".
The accuracy should not be lower than the current "Grounding resistance meter test procedure" (JJG 366) stipulates level 3.
3 Test method
3.0.1 Before the test, make sure that the insulation of the test leads is not damaged or cracked and that the surface of the earth rod is clean.
3.0.2 The instrumentation should be zeroed and relevant parameters such as compensation resistance should be set before the test.
3.0.3 In accordance with the requirements for the use of the apparatus and equipment, the potential and current earth rods should be inserted into the soil in turn from the earth pole under test, and the test leads should be used to connect the earth resistance meter test port reliably to the corresponding earth pole under test, potential and current poles.
4 Monitoring facilities testing
T 8101-2021 Traffic flow relative error test
1 Scope of application
1.0.1 This method applies to vehicle detectors, traffic volume survey equipment and other facilities for the relative error test of traffic flow.
2Apparatus and equipment
2.0.1 Counter: the number of display digits should not be less than 4 digits.
3 Test method
3.0.1 It should be confirmed that the traffic flow data collected by the equipment under test can be read in real time.
3.0.2 The tester shall operate the counter and the equipment under test to count the traffic flow through the test area section at the same time.
3.0.3 The test shall be stopped when the volume of traffic recorded by the counter reaches the number specified in the test and the count value of the counter and the count value of the equipment under test shall be recorded when the test is stopped.
4 Test requirements
5 Communication facility test
T 8201-2021 Optical fibre link splice loss and total loss test (backward scattering method)
1 Scope of application
1.0.1 This method is suitable for testing the total loss, splice loss and average splice loss of optical fibre links using the backscatter method.
2Apparatus
T 8202-2021 Optical fibre link total loss test (insertion loss method)
1 Scope of application
1.0.1 This method is suitable for testing the total loss of optical fibre links using the insertion loss method.
2 Apparatus and equipment
2.0.1 Stabilized light source for optical transmission: long time (≥5h) stability should be better than ±0.2dB; short time (15min) stability should be better than ±0.02dB; wavelength range should include the working wavelength of the fiber under test.
Article description
The metrological performance requirements of the optical transmission stabilized light source refer to the "optical transmission stabilized light source calibration procedures" (JJG 958).
2.0.2 optical power meter for communications: optical power measurement range should cover - 60 ~ +27dBm; optical power relative to the indicated value of the error ≤ 10%; wavelength range should include the working wavelength of the fiber being measured.
Article description
Optical power meter for communications measurement performance requirements refer to the "optical power meter for communications verification procedures" (JJG 965).
3 Test method
3.0.1 A short section of optical fibre of the same - type as the optical fibre under test shall be used as the reference fibre, and a stable light source shall be connected to the optical power meter test port through the reference fibre.
6 Toll facility testing
T 8301-2021 Lane software processing flow and basic function test
1 Scope of application
1.0.1 This method applies to the testing of entrance and exit toll lane processing flows and basic functions.
Article description
Toll lanes include ETC lanes, mixed ETC/MTC lanes and MTC lanes, etc.
2 Test methods
2.0.1 The current version information of the toll lane software and system parameters shall be recorded prior to the test.
2.0.2 The data reception function shall be tested in accordance with the following provisions:.
1 Verify the system parameters and related information issued by the toll station or toll (sub)centre to the toll lane under its jurisdiction in the toll lane under test.
2 Verify the system clock in the toll lane under test.
3 Carry out vehicle handling process operations in the tested exit lane to verify the implementation of the toll information.
4 Carry out concessionary vehicle processing operations in the exit lane under test to verify the implementation of concessionary information.
7 Testing of power supply and distribution facilities
T 8401-2021 Power quality testing
1 Scope of application
1.0.1 This method applies to the testing of power quality parameters in the 50 Hz AC power supply system on the low-voltage 380 V side of the transformer, including output voltage, output frequency, frequency deviation, voltage deviation, three-phase voltage unbalance, harmonics, etc.
Article description
Usually there are both low-voltage and medium-voltage distribution facilities in the power supply and distribution room, this method is only for the testing of the power quality parameters on the low-voltage side of the transformer. The test of power quality parameters on the low voltage side of the transformer.
2 Instrumentation
2.0.1 The power quality analyser shall meet the following technical requirements:
1 Level: A level.
2 Maximum permissible voltage error: ±0.1%.
3 Maximum permissible error of frequency: ±0.01Hz.
4 Harmonic measurement: DC and 1st to 50th harmonics.
5The maximum allowable error of three-phase voltage unbalance:±0.15%.
6Maximum permissible error of three-phase current unbalance:± 1%.
8Lighting facility test
T 8501-2021 Road illuminance test
1 Scope of application
1.0.1 This method applies to the road surface (excluding tunnel road surface) average illuminance, illuminance total uniformity of the test.
2 Apparatus and equipment
2.0.1 Light illuminance meter: measurement performance should meet the current "light illuminance meter calibration regulations" (JJG245) provides a level of requirements; resolving power ≤ 0. llx.
2.0.2 tape measure (steel or fiber): measurement range 0 ~ 50m; steel tape measure performance should meet the current "steel tape measure testing procedures" (JJG4) requirements of level II; fiber tape measure performance should meet the current "fiber tape measure, measuring rope testing procedures" (JIG5) requirements of level 2.
3 Test methods
3.0.1 The test area longitudinal should be the area between two light poles on the same side of the road being tested. When testing the road lighting of the toll lane, the longitudinal area shall be the area of the toll lane located under the toll canopy.
Description
The test area longitudinal is along the direction of travel.
3.0.2 When the luminaires are placed in a single-sided manner, the test area shall be the entire width of the road in the horizontal direction.
9 Testing of electrical and mechanical installations in tunnels
T 8601-2021 Average wind speed test for tunnel cross-sections
1 Scope of application
1.0.1 This method is applicable to the test of the average wind speed of a tunnel section when the tunnel ventilation system is operating according to the design working conditions.
2 Instrumentation.
2.0.1 Digital anemometer: the maximum measured wind speed should not be less than 30m/s; the starting wind speed should not be greater than 0.5m/s; the maximum permissible error is ± (0.5m/s + 0.02xv) (v is the standard wind speed).
2.0.2 Tower type level scale: nominal length 5m; measurement performance should meet the current "level scale calibration regulations" (JJG8) provisions.
2.0.3 Steel tape measure: measuring range 0~ 10m; measuring performance should meet the current "steel tape measure testing procedures" (JJG4) requirements of class II.
Contents of JTG/T 3520-2021
1 General
2 Terminology and abbreviations
3 General test
4 Monitoring facilities testing
5 Communication facility test
6 Toll facility testing
7 Testing of power supply and distribution facilities
8Lighting facility test
9 Testing of electrical and mechanical installations in tunnels
