China Factory wholesale China Laminated Busbar Manufacturer - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F manufacturers and Exporter

Factory wholesale China Laminated Busbar Manufacturer - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F

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Factory wholesale China Laminated Busbar Manufacturer - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F Detail:

Technical Requirements

1.1 Appearance: the surface of sheet shall be flat and smooth, free of air bubbles, wrinkles or cracks and reasonably free of other small imperfections such as scratches, dents, etc. The edge of sheet shall be tidy and be free of delaminations and cracks. The color shall be substantially uniform, but a few stains are permissible.

1.2 Dimension and allowed tolerance

1.2.1 Width and Length of Sheets

Width & Length (mm)	Tolerance (mm)
＞970～3000	+/-25

1.2.2 The nominal thickness & tolerance

Nominal thickness (mm)

Tolerance (mm)

Nominal thickness (mm)

Tolerance (mm)

0.5

0.6

0.8

1.0

1.2

1.6

2.0

2.5

3.0

4.0

5.0

6.0

8.0

+/-0.12

+/-0.13

+/-0.16

+/-0.18

+/-0.20

+/-0.24

+/-0.28

+/-0.33

+/-0.37

+/-0.45

+/-0.52

+/-0.60

+/-0.72

+/-0.82

+/-0.94

+/-1.02

+/-1.12

+/-1.30

+/-1.50

+/-1.70

+/-1.95

+/-2.10

+/-2.30

+/-2.45

+/-2.50

+/-2.80

Remarks: For the non-nominal thickness not listed in this table, the deviation shall be the same as that of the next greater thickness.

1.3 Bending Deflection

Thickness (mm)

Bending Deflection

1000mm（Ruler length） (mm)

500mm（Ruler length）(mm)

3.0～6.0

＞6.0～8.0

＞8.0

≤10

≤8

≤6

≤2.5

≤2.0

≤1.5

1.4 Mechanical processing: the sheets shall be free of cracks, delaminations and scraps when such machining as sawing, drilling, lathing and milling is applied

1.5 The physical, mechanical and electrcal properties

No.	Properties	Unit	Standard value	Typical value
1	Density	g/cm³	1.7～1.95	1.94
2	Water absoprtion (2mm sheet)	mg	≤20	5.7
3	Flexural strength, perpendicular to laminations	MPa	≥340	417
4	Impact strength (Charpy, notch)	kJ/m²	≥30	50
5	Dielectric dissipation factor 50Hz	—	≤5.5	4.48
6	Dielectric constant 50Hz	—	≤0.04	0.02
7	Insulation resistance ( After 24h in water)	Ω	≥5.0 x10⁸	4.9 x10⁹
8	Dielectric strength, perpendicular to laminationsin transformer oil at 90℃+/-2℃, 1mm sheet	kV/mm	≥14.2	16.8
9	Breakdown Voltage, parallel to laminationsin transformer oil at 90℃+/-2℃	kV	≥35	38

Packing, Transportation and Storage

The sheets shall be stored in a place where temperature is no higher than 40℃, and be placed horizontally on a bedplate with a height of 50mm or above. Keep away from fire, heat (heating apparatus) and direct sunshine. The storage life of sheets is 18 months from the date of leaving factory. If the storage duration is over 18 months, the product also could be used after being tested to be qualified.

3240 (3)
3240 (4)

Remarks and Precautions for Application

A high speed and small cutting depth g shall be applied when machining because of sheets’ weak thermal conductivity.

Machining and cutting this product will release much dust and smoke. Suitable measures should be taken to ensure dust levels are within acceptable limits during operations. Local exhaust ventilation and using the dust/particle masks are advised.

The sheets are subject to moisture after being machined, a coating of insulating vanish is recommended.

3240 machining parts(10)
CNC machining insulation parts(1)

Production Equipment

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The Package For Laminated Sheets

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Our personnel are generally within the spirit of "continuous improvement and excellence", and using the excellent top quality goods, favorable rate and superior after-sales expert services, we try to win every customer's believe in for Factory wholesale China Laminated Busbar Manufacturer - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F , The product will supply to all over the world, such as: Czech republic, Luxemburg, Jamaica, We have constructed strong and long co-operation relationship with an enormous quantity of companies within this business in Kenya and overseas. Immediate and specialist after-sale service supplied by our consultant group has happy our buyers. Detailed Info and parameters from the merchandise will probably be sent to you for any thorough acknowledge. Free samples may be delivered and company check out to our corporation. n Kenya for negotiation is constantly welcome. Hope to get inquiries type you and construct a long-term co-operation partnership.

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