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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
Malaysia
Malaysia
TNB LABS Sdn. Bhd.
No.1, Lorong Air Hitam, Kawasan Institusi Penyelidikan Bandar Baru Bangi, 43000 Kajang Selangor.
High Voltage
Accredited to ISO/IEC 17025
Malaysia
Malaysia
High Voltage & High Current Institute -IVAT
Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 Skudai Johor
High Voltage
Non-Accredited to ISO/IEC 17025. Only High Voltage calibration is accredited to ISO/IEC 17025.
Malaysia
Malaysia
SIRIM QAS International Sdn Bhd
Building 8, SIRIM Complex,No. 1, Persiaran Dato’ Menteri, Section 2, P.O. Box 7035, 40700 Shah Alam
Low Voltage
Accredited to ISO/IEC 17025
Malaysia
Malaysia
High Voltage Test Lab Sdn. Bhd.
Lot 6, Jalan Permata 2, Arab Malaysian Industrial Park, 71800 Nilai, Negeri Sembilan
High Voltage
Accredited to ISO/IEC 17025
Malaysia
Malaysia
Malaysia Transformer Manufacturing Sdn. Bhd.
Lot 22, Jalan AU 3/1, Ulu Klang, 54200 Kuala Lumpur
High Voltage
Accredited to ISO/IEC 17025
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
China
Testing Center, Baoding Tianwei Baobian Electric Co., Ltd.
No. 2222, Tianwei West Road, Baoding, Hebei, China.
High Voltage
Accredited to ISO/IEC 17025
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
China High Power Testing Liaison P.R China
High Voltage
Accredited to ISO/IEC 17026
Asia
China
Xihari- Xian High Voltage Apparatus Research Institute Co.,Ltd.
No.18, Shaanxi,China
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
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
TBEA Hengyang Transformer Co. Ltd. Testing Center
Baishazhou, Hengyang, Hunan
High Voltage & 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
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
Electric Power Fitting Quality Inspection Center of Nanjing State Power
No. 49, Heyen Road, Nanjing, Jiangsu, China
High Voltage
Accredited to ISO/IEC 17025 by CNAS
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
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
China Electric Power Research Institute
No.15, Xiaoying East Road, Qinghe, Haidian District, Beijing, China
High Voltage
Accredited to ISO/IEC 17025
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
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
China
Trench High Voltage Products Ltd., Shenyang Test Center
No. 2, Zhengliang Erlu, Jingshenxi Sanjie, Daoyi Economic Development Zone, Shenbei New District, Shenyang, Liaoning, China
High Voltage
Accredited to ISO/IEC 17025
Asia
China
Guangdong Testing Institute of Product Quality Supervision/Guangdong Electrical Safety Testing Institute of China State Bureau Of Quality And Technical Supervision
No 68, Xihudong Road, Shilong Town Dong Guan City, Guangdong Province, P.R. China
High Power
Accredited to ISO/IEC 17025
Asia
China
Henan High Voltage Apparatus Research Institute Co., Ltd.
Crossing of Fuxing Road & Meiyuan Road, Xingcheng District, Pingdingshan, Henan, 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 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
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
China
Zunyi Institute of Products Quality Inspection & Testing
No. 126, Shanghai Road, Huichuan District, Zunyi, Guizhou, China
High Voltage
Accredited to ISO/IEC 17025
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
India
Central Power Research Institute – CPRI
Central Power Research Institute, Prof. Sir C. V. Raman Road, P.B 8066, Bangalore – India 560 080.
High Voltage  & High Power
Accredited to ISO/IEC 17025  & STL member
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Current Revision: R24 dated 10th February 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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