Baijian Testing is a third-party testing agency that provides enterprises with relevant CNAS, CMA, CAL and other qualification certification testing reports. We always take the enterprise as the first and customer as the center, carry out testing work under strict procedures, provide customers with product testing and quality control solutions, and wholeheartedly provide scientific and scientific inspection, research and development analysis services for our customers

Testing process

1. Sending samples

2. Checking requirements

3. Targeted quotation

4. Both parties confirm, sign a contract, and start the experiment

5. Completing the experiment: The testing cycle (can be expedited) may change according to the sample and its testing items/methods, and engineers can be consulted

6. Issuing the testing report and providing post service.

Testing items:

Partial parameters, short-term and peak withstand current tests for the main circuit and grounding resistance circuit, main circuit resistance measurement, insulation test for the main circuit, internal arc fault test, internal arc test, functional test, sealing test, opening and breaking capacity test, grounding continuity test, wiring correctness check, functional test for satisfactory operation, temperature rise test, short-term withstand current and peak withstand current test, Insulation test, additional tests for auxiliary and control circuits, voltage withstand test for auxiliary circuits, protection level inspection, verification of making and breaking capabilities, internal arc fault test/internal arc test, functional test for satisfactory operation, electromagnetic compatibility (EMC) test, protection level verification, verification test/verification of pre installed substation sound level, Testing or Calculation of Mechanical Stress Tolerance for Prefabricated Substation/Calculation and Testing of Mechanical Stress Tolerance for Enclosures, Power Frequency Voltage Tolerance Test, Wiring Correctness, Nameplate Inspection, Nameplate Inspection, Electrical Fast Transient Pulse Group Immunity Test, Damping Oscillation Wave Immunity Test, Testing of Mechanical Stress Tolerance for Enclosures, Testing of Sound Level for Prefabricated Substation, Testing of Low Voltage Connection Lines, Electrical Continuity Test for Grounding Metal Components, Testing of high-voltage connection lines, short-term and peak withstand current tests for main and grounding circuits, continuity of wiring tests, verification of creepage distance, electromagnetic compatibility (EMC) tests, design and appearance inspections, insulation tests for auxiliary circuits, lightning impulse voltage tests, sound level measurements, verification of shell withstand mechanical stress tests, all items, verification of protection level, sound level tests, measurement of circuit resistance, and protection level tests, Additional tests for auxiliary and control circuits, verification of pre installed substation withstand mechanical stress tests or calculations, insulation tests for high-voltage connection lines, insulation tests for low-voltage connection lines, insulation tests for auxiliary contacts and control circuits, functional tests to verify satisfactory operation, on-site assembly tests, electromagnetic compatibility tests (EMC), calculation and testing of housing withstand mechanical stress, and on-site assembly tests, Test sound level inspection for verifying the sound level of prefabricated substations, including power supply influence, insulation resistance, insulation strength, low temperature test, high temperature test, temperature storage test, wet heat test, electromagnetic compatibility performance test, mechanical performance test, power frequency withstand voltage test, verification of making and breaking capacity.

Testing standards:

1. GB/T 17467-2010 High voltage/low voltage prefabricated substations 6.6

2 GB/T 17626.18-2016 Electromagnetic Compatibility Testing and Measurement Techniques Damping Oscillation Wave Immunity Test

3. DL/T 537-2018 IEC 62271-202:2014 High Voltage/Low Voltage Prefabricated Substation 6.2

4. GB/T 11022-2011 Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards 6.7

5. DL/T 537-2018 GB/T 17467-2010 GB/T 17467-2020 IEC 62271-202, 2006 IEC 62271-202, 2.0) IEC 62271-202, 2015 EN 62271-202, 2007 EN 62271-202, DL/T 537-2002 IEC 61330, 1995 EN 61330 High voltage/low voltage prefabricated substations DL/T 537-2018 GB/T 17467-2010 GB/T 17467-2020 IEC 62271-202:2006 IEC 62271-202:2014 (ed2.0) IEC 62271-202:2014/COR1:2015 EN 62271-202:2007 EN 62271-202:2014 Selection guidelines for high voltage/low voltage prefabricated substations DL/T 537-2002 IEC 61330:1995 EN 61330:1996

7. DL/T537-2018 Guidelines for the Selection of High Voltage/Low Voltage Prefabricated Substation 7.1

8. GB/T4208-2017 Housing Protection Level (IP Code)

9. GB/T 11920-2008 General Technical Conditions for Centralized Control Equipment and Systems in Power Stations 6.4

10. IEC62271-202:2014 High Voltage Switchgear and Control Equipment Part 202: High Voltage/Low Voltage Prefabricated Substation 6.6

11 IEC 62271-202:2014 High Voltage Switchgear and Control Equipment - Part 202: High Voltage/Low Voltage Prefabricated Substation 6.102

12, DL/T 537-2018 Selection Guidelines for High Voltage/Low Voltage Prefabricated Substation 6.6

13, GB/T 17467-2020 IEC 62271-202:2014 EN 62271-202:2014 High Voltage/Low Voltage Prefabricated Substation 7.2

14, DL/T 537-2018 High Voltage/Low Voltage Prefabricated Substation 6.9

15 IEC62271-202-2014 High Voltage/Low Voltage Prefabricated Substation 6.6

16, GB/T7251.1-2013 Low Voltage Switchgear and Control Equipment Part 1: General 10.9

17, GB/T 17467-2020 High Voltage/Low Voltage Prefabricated Substation 7.6

18, DL/T537-2018 High Voltage/Low Voltage Prefabricated Substation 6.9

19, GB 17467-2020 High Voltage/Low Voltage Prefabricated Substation 7.104

20 GB/T 311.1-2012 Insulation Coordination Part 1: Definition, Principles and Rules

Testing Process Steps

1. Telephone communication and confirmation of requirements 2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is required