Basic Info.
Maximum Voltage
20KV~100KV
Chemistry
Organic Insulation
Classification
Hybrid Insulation Materials
Product Description
StrataWood material, is a press laminated wood in crosswise direction, based on high quality and selected beech veneers, stick together with a Electrical thermosetting synthetic resins under high pressure and temperature. The most important characteristics of the StrataWood :Good Electrical propertiesExcellent absorption of transformer oilHigh mechanical strength Low and high temperature resistanceGood resistance to the abrasion and wearDue to the characteristics of the product , StrataWood is mainly use in the electrical oil transformers applications as high electrical insulation material as pressure beams, step blocks, pressure spare parts, top and bottom support coils, potential rings, pressure rings , spacers, etc. For his mechanical strength, StrataWood can be also use for many applications as abrasion resistance material under stress.Standard Range of Production Type : PWL-0 (C2B): Low Density , between 0.85 to 1.05 g/cm3 Type : PWL-1 (C3B): Medium Density, from1.05 to 1.20 g/m3Type : PWL-2 (C4B): High Density , over 1.15 to 1.25 g/cm3The lamination is made on crosswise veneers , and the standard thickness of the veneer is 2 mm. Under specification we can produce from 1 mm , 1,2 mm and 1,5 mm thickness veneer too.For non electrical application and according specific requirements , we can produce in a sheets on parallel veneer.Thickness range , from 10 mm to 100 mmStandard Sheet Sizes:1000 x 2000 mm, 1500 x 1000 mm, 1500 x 1500 mm, 1500 x 3000mm, 3000 x 1500 mmWe can machine any kind of pieces produced with C.N.C equipments with sizes according sheets availability according costumers drawings. | PHYSICAL PROPERTIES | Unit | PWL-0 | PWL-1 | PWL-2 |
| Density | g/cm3 | 0.85 to1.05 | 1.05 to 1.15 | >1.15 to 1.25 |
| Moisture | % | ≤ 7 | ≤ 7 | ≤ 7 |
| Shrink Ratio after dried | % | ≤ 1.5 | ≤ 1.5 | ≤ 1.5 |
| Oil Absorption | % | >30 | >20 | >7 |
| Inter-reaction with transformer oil | | Very Good | Very Good | Very Good |
| MECHANICAL PROPERTIES |
Tensile Strength
Parallel to the layers | Mpa | ≥ 50 | ≥ 55 | ≥ 80 |
Parallel to the layers ║
Compressive Strength
Vertical to the layers ╧ | Mpa
Mpa | ≥ 50
≥120 | ≥ 65
≥130 | ≥ 100
≥150 |
Parallel to the layers ║
Flexural Strength
Vertical to the layers ╧ | Mpa
Mpa | ≥ 100
≥100 | ≥ 115
≥ 115 | ≥ 120
≥120 |
Module of elasticity in flexure
Parallel to the layers | Mpa | ≥7000 | ≥8000 | ≥10000 |
| ELECTRICAL PROPERTIES |
| Insulation Resistance | | ≥108 | ≥108 | ≥108 |
Electrical Strength
(In transformer oil)
at 20ºC Vertical
at 90ºC Vertical
at 20ºC Surface
at 90ºC Surface | MV/m
MV/m
kV/25 mm
kV/25 mm | ≥ 9
≥ 7
≥ 60
≥ 50 | ≥ 9
≥ 7
≥ 60
≥ 50 | ≥ 9
≥ 7
≥ 60
≥ 50 |
Dielectric Loss Factor at 50 Hz
at 20ºC
at 90ºC | | ≤ 0.02
≤ 0.13 | ≤ 0.02
≤ 0.13 | ≤ 0.02
≤ 0.13 |
Comparative dielectric constant
at 20ºC
at 90ºC | | ≤ 3.0
≤ 3.6 | ≤ 3.0
≤ 3.6 | ≤ 3.0
≤ 3.6 |
We could offer it base on requests sizes
Address:
D703, Block a, Eac, No. 18, Jiaogong Road, Xihu District, 310012, Hangzhou, Zhejiang, China
Business Type:
Manufacturer/Factory
Business Range:
Construction & Decoration, Electrical & Electronics, Industrial Equipment & Components, Light Industry & Daily Use, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Transportation
Management System Certification:
ISO 9001
Company Introduction:
Hangzhou Times Industry Co., Ltd., is a supplier of electrical and electronic Insulating materials in China, especially for the uses in transformers, motors and generators, etc.
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