insulaion material-6630-class B DMD insulation paper

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Basic Info

Place of Origin:	China (Mainland)

Product Description

class B DMD insulation paper is a triple-layer electrical insulation material of thermal class 130 degree, consisting of PET film covered on both sides with polyester felt. This DMD has excellent electrical, mechanical, and impregnating properties. Application of class B DMD insulation paper: Class B DMD inslation paper is mainly used as a solt liner, slot closure, phase and turn-to-turn insulation in electrical motors, it can be also used as interlayer insulation in transformers and other electrical machines and appliances.

Type	Polyester Fiber Non-Woven Fabric Nominal Thickness (μm)	Features
6630	≤50	High stiffness. Suitable for mechanized insert slot.
6630-A	60-100	More flexible. Suitable for handed insert slot.

No.	Properties	Unit	Values
1	Nominal Thickness	mm	0.15*	0.18	0.20	0.25	0.30	0.35	0.40
2	Thickness Tolerance	mm	±0.020	±0.025	±0.030			±0.035	±0.040
3	Breakdown Voltage ( No Bending) ≥	kv	6	7	9/8**	12/10	15/11	18/13	20/16
4	Bond Strength At Room Temp.	—	No delamination
5	Bond Strength At (155±2), 10 Min	—	No delamination, No blister, No adhesive flow

Techical data of class B DMD insulation paper:

NO.	Item	Unit	Normal value
1	Nominal thickness	mm	0.15	0.17	0.20	0.25	0.30	0.35
2	Nominal weight and tolerance	g/m²	140±20	190±28	225±33	300±45	350±52	425±63
3	Nominal thickness of film	um	50	75	100	150	190	250
4	TensileStengt MD no bending MD after bending TD no bending TD after bending	N/10mm	≥80 ≥80 ≥80 ≥70	≥120 ≥105 ≥105 ≥120	≥140 ≥120 ≥120 ≥100	≥190 ≥170 ≥170 ≥130	≥270 ≥200 ≥200 ≥150	≥320 ≥300 ≥300 ≥200
5	Elongation MD no bending MD after bending TD no bending TD after bending	%	≥15 ≥10 ≥20 ≥10	≥15 ≥10 ≥20 ≥10	≥15 ≥10 ≥20 ≥10	≥15 ≥10 ≥20 ≥10	≥5 ≥5	≥5 ≥5
6	Breakdown voltage Normal	KV	≥6	≥7	≥9	≥12	≥15	≥18
7	Bonding strength at room temperature	-	No delamination
8	Bonding strength at 155±2°C for 10 min	-	No delamination,blister and drainage

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class b dmd insulation paper , 6630 slot insulation class b dmd insulation paper , 6630 class b dmd insulation paper