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TNB's Approved Testing Laboratory

A part of Quality Assurance

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Region
Country
Laboratory Name
Address
Laboratory Type
Remarks
Asia
China
Intertek Testing Service (Guangzhou) Ltd.
No. 3-1, Xinhai Xinyi Road, Huangge Town, Nansha District, Guangzhou City, China
High Voltage
Accredited to ISO/IEC 17025
Asia
Japan
Japan AE Power Systems Corp.
Kokubu High Power Laboratory 1-1, Kokubu-cho Hitachi-shi Ibaragi 316-8501
High Voltage & High Power
Accredited to ISO/IEC 17025 & STL member under JSTC.
Asia
Japan
Japan AE Power Systems Corp.
515, Kaminakamizo Higashimakado, Numazu-shi, Shizuoka 410-8588, Japan.
High Voltage & High Power
Accredited to ISO/IEC 17025  & STL member under JSTC
Asia
China
Jiangsu Jiameng Electrical Equipment Co., Ltd. Test Center
No. 5, Zhongli Road, Binhai Industrial Park, Qidong, Jiangsu, China
High Voltage
Accredited to ISO/IEC 17025
Asia
India
Kinectrics India Private Limited
Sy No.125, Banda Mailaram Village, Mulugu Mandal, Siddipet District, Telangana – 502 336, India
High Voltage
Accredited to ISO/IEC 17025
Asia
South Korea
Korea Electrotechnology Research Institute -KERI
Bulmosan-gil 70  Changwon-si  Gyeongsangnam-do  South Korea   641-120
High Voltage & High Power
Accredited to ISO/IEC 17025 and accepted as STL 10th members.
Asia
China
Liaoning H.V. Apparatus Quality Test Co., Ltd.
No. 16, Hushitai South Street, Shenbei New Area, Shenyang, Liaoning, China
High Power
Accredited to ISO/IEC 17025
Asia
India
Mehru Electrical & Mechanical Engineers
SP2/180 RIICO Industrial Area, Kehrani, Bhiwadi – 3013019 Alwal, Rajastan
High Power
Accredited to ISO/IEC 17025 by NABL
Asia
Japan
Mitsubishi Electric Corp. High Power Laboratory
8-1-1, Tsukaguchi-Honmachi, Amagasaki-shi, Hyogo 661-8661
High Power
Accredited to ISO/IEC 17025  & STL member under JSTC.
Asia
Japan
NGK High Voltage Laboratory
32 Ikeda, Shimozue Komaki-shi Aichi 485-0825
High Voltage
Accredited to ISO/IEC 17025
Asia
Indonesia
PT PLN (Persero) Pusat Sertifikasi – LMK Lab
Jl. Duren Tiga No. 102, Kalibata, Jakarta Selatan Indonesia
High Voltage
Accredited to ISO/IEC 17025
Asia
Indonesia
PT Preformed Line Products Indonesia (PLP Indonesia Laboratory)
JI. Irian VII Blok MM-4-2 Kawasan Industri MM2100 Cikarang - Bekasi 17530 Jawa Barat, Indonesia
High Voltage & Mechanical Tests
Accredited to ISO/IEC 17025
Asia
South Korea
Power Testing & Technology Institute (PT&T), LSIS Co. Ltd.,
Wolmyeong-ro, 201-68, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 361-817
High Voltage & High Power
Accredited to ISO/IEC 17025 by ASTA
Asia
Thailand
Power Transformer Testing Laboratory ABB Limited
322 Moo 4, Bangpoo Industrial Estate, Muang, Samutprakam, 102820, Thailand
High Voltage
Accredited to ISO/IEC 17025
Asia
China
Quality Inspection and Test Center for Electrical Equipment of Power Industry (CEPRI)
No. 143 Luoyu Road, Hongshan District, Wuhan, Hubei Province 430074, China
High Voltage
Accredited to ISO/IEC 17025 by CNAS
Asia
China
Shanghai Intelligent Service and Technology Co., Ltd.
Floor 1 Building 2, No. 258 Jinzang Road, Pudong New District, Shanghai, P.R. China
High Power (Power Cables and Accessories)
Accredited to ISO/IEC 17025
Asia
China
Shenyang Transformer Institute Co. Ltd. Transformer Laboratory, China
No. 18, Hushitai South Street, Shenbei New District, Shenyang, Liaoning, China
High Voltage  & High Power
Accredited to ISO/IEC 17025 by CNAS
Asia
China
Shihlin Electric & Engineering Corporation Heavy Electrical Plant
No. 23, Chung-Hwa Rd, Huko Hsiang, Hsinchu, Taiwan 303 R.O.C
High Voltage
Accredited to ISO/IEC 17025
Asia
Vietnam
Small Power Transformer Testing Laboratory (SPT Testing Laboratory) ABB LTD, Vietnam
Km 9, National Road 1A, Hong Liet, Hoang Mai, Hanoi, Vietnam
High Voltage
Accredited to ISO/IEC 17025
Asia
China
Suzhou Electrical Apparatus Science Research Institute Co., Ltd.
No.5, Yuexi Qianzhu Road, Wuzhong District, Suzhou, Jiangsu, China
High Voltage & High Power
Accredited to ISO/IEC 17025.
Asia
India
TAG Corporation
91, Thiruneermalai Road, Chrompet, Chennai – 600 044, India
High Voltage
Accredited to ISO/IEC 17025
Asia
China
TBEA Hengyang Transformer Co. Ltd. Testing Center
Baishazhou, Hengyang, Hunan
High Voltage & High Power
Accredited to ISO/IEC 17025 by CNAS
Asia
China
TUV SUD New Energy Vehicle Testing (Jiangsu) Co., Ltd
Building A, No. 15 Factory, Jintong International Industrial Park, No. 8, XihuRoad, Wujin National Hi-Tech Industrial Development Zone, Changzhou, Jiangsu, China
SCTC
Accredited to ISO/IEC 17025
Asia
Japan
Takaoka Oyama High-Power Laboratory
1440, Nakakuki, Oyama-shi, Tochigi 323-8668
High Power
Accredited to ISO/IEC 17025  & STL member under JSTC.
Asia
China
Tap-Changer Testing and Inspection Center of Shanghai Huaming Power Equipment Co., Ltd.
No. 977 Tongpu Road, Putuo District, Shanghai 200333, China
High Voltage
Accredited to ISO/IEC 17025
Asia
China
Testing Center of Arteche DYH Electric Co., Ltd.
No.217-24,Xingshukou Tun, Taiping Industrial Park, Pulandian District, Dalian, Liaoning, China
High Voltage
Accredited to ISO/IEC 17025
Asia
China
Testing Center of Jiangsu Sieyuan Hertz Instrument Transformer Co.,Ltd.
No.5, Huimin West Road, Economic Development Zone, Rugao, Jiangsu, China
High Voltage
Accredited to ISO/IEC 17025
Asia
China
Testing Center of Shandong Electric Power Equipment Co., Ltd.
No.3, Jiyi Xichang Road, Jinan, Shandong, China
High Voltage
Accredited to ISO/IEC 17025.
Asia
China
Testing Center of Shanghai Electric Cable Research Institute
No 1000, Jugong Rd., Yangpu District, Shanghai 200093
High Power
Accredited to ISO/IEC 17025 by CNAS
Asia
China
Testing Center of TBEA Shenyang Transformer
No.32 Kaifa Road, Economic & Technological Development Zone, Shenyang, Liaoning, China
High Voltage
Accredited to ISO/IEC 17025
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Current Revision: R29 dated 10th August 2026

TNB Approved Laboratory List (PDF Version)

Please take note of the following:-

  1. The listing of the laboratories is only valid at the date the laboratories were first listed.

  2. Assessment of each laboratory is only done by the checking of documents and verification at the related national accreditation body’s website.

  3. Manufacturers who intend to use any of the laboratories listed shall ensure that the laboratory is accredited for the intended scope at the time the tests are conducted.

  4. Manufacturers shall consult and get the consent of the related TNB Division on the laboratory selected for the testing.


Disclaimer :-

TNB shall not be held responsible if the manufacturer’s product type test is rejected due to the  manufacturer failing to adhere to items 1-4 above.

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