TNB's Approved Testing Laboratory
A part of Quality Assurance



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 |
Current Revision: R24 dated 10th February 2026
Please take note of the following:-
The listing of the laboratories is only valid at the date the laboratories were first listed.
Assessment of each laboratory is only done by the checking of documents and verification at the related national accreditation body’s website.
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.
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.
