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Research progress of electrical laminated wood
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Zhonghai SUN1, Fangda ZHANG2, Wenji YU2, Qiang JI3, Yajie ZHANG4, Guoxin LI5, Lihua WANG6
Insulating Materials | 2025, 58(5) : 9 - 14
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Insulating Materials | 2025, 58(5): 9-14
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Research progress of electrical laminated wood
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Zhonghai SUN1, Fangda ZHANG2, Wenji YU2, Qiang JI3, Yajie ZHANG4, Guoxin LI5, Lihua WANG6
Affiliations
  • 1. Kang Liyuan Science & Technology (Tianjin) Co., Ltd., Tianjin 300380, China
  • 2. Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
  • 3. Chengdu XD Zhongte Electric Co., Ltd., Chengdu 611137, China
  • 4. Baoding Tianwei Group Tebian Electric Co., Ltd., Baoding 071051, China
  • 5. Shandong Taikai Transformer Co., Ltd., Tiaian 271299, China
  • 6. TBEA Shenyang Transformer Group Co., Ltd., Shenyang 110027, China
Published: 2025-05-20 doi: 10.16790/j.cnki.1009-9239.im.2025.05.002
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Electrical laminated wood is widely used in the field of transformer insulation due to its high mechanical strength, low dielectric loss factor, and dielectric constant close to transformer oil. However, its insulation performance is lower than that of laminated paperboard, and there is a significant risk of insulation accidents when it is used in high field strength area of transformer. In this paper, the raw material selection, processing technology, and current problems of electrical laminated wood were discussed and analyzed, and the influencing factors of its insulation performance were analyzed, providing references for improving the product quality of electrical laminated wood.

electrical laminated wood  /  processing technology  /  electrical performance  /  closed air chamber  /  hydrogen release
Zhonghai SUN, Fangda ZHANG, Wenji YU, Qiang JI, Yajie ZHANG, Guoxin LI, Lihua WANG. Research progress of electrical laminated wood[J]. Insulating Materials, 2025 , 58 (5) : 9 -14 . DOI: 10.16790/j.cnki.1009-9239.im.2025.05.002
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2025.05.002
  • Receive Date：2024-07-10
  • Online Date：2025-12-04
  • Published：2025-05-20
Article Data
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History
  • Received：2024-07-10
  • Revised：2024-12-05
Funding
Affiliations
    1. Kang Liyuan Science & Technology (Tianjin) Co., Ltd., Tianjin 300380, China
    2. Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
    3. Chengdu XD Zhongte Electric Co., Ltd., Chengdu 611137, China
    4. Baoding Tianwei Group Tebian Electric Co., Ltd., Baoding 071051, China
    5. Shandong Taikai Transformer Co., Ltd., Tiaian 271299, China
    6. TBEA Shenyang Transformer Group Co., Ltd., Shenyang 110027, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2025.05.002
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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