Electrical SDP diamond insulation paper tape_Insulation material_Products_Hangzhou Giantway Import & Export Co., Ltd.

If you are interested in our products or need technical supports and service,please contact us as bellowing:

Details

The base paper of this product is a high-strength insulating paper made of Finland's unique insulating pulp with high softness and toughness through super calender process.,and diamond coated with special modified epoxy resin on the surface,then cured by phase B.It is mainly used for trapezoidal insulation of oil-immersed transformer high voltage coil wound by high speed automatic winding machine.

First of all,to cure under temperature 90℃±5℃ for 3 hours,and then rise temperature to 125℃±5℃ and keep 6 hours to cure.

Storage

The product should be stored in dry,clean and well-ventilated warehouse.The fire,heat sources and direct sunshine should be avoided.The storage period is one year,qualified products exceeding the storage period can still be used.

No.	Property		Unit	Requirements
1	Base material thickness and tolerance		mm	0.05±0.003	0.06±0.003	0.08±0.005
2	Base material tightness		g/cm³	0.85~1.10
3	Thickness of single side adhesive		μm	5~15
4	Moisture		%	4.0~8.0
5	Ash		%	≤1.0
6	Conductivity of water extract		mS/m	≤10
7	PH value of water extract		一	6.5~8.5
8	0il absorbency		%	≥20
9	Bonding strength	Normal	k	≥800
		100℃±2℃		≥600
10	Contamination of transformer oil		一	No pollution(△tanδ<0.001)
11	Tensile strength	MD	N/15mm Width	≥65	≥75	≥100
		CD		≥25	≥35	≥45
12	Tear strength	MD	mN	≥400	≥450	≥800
		CD		≥550	≥650	≥1000
13	Breakdown Voltage	In air	kV	≥0.50	≥0.60	≥0.88
		In oil		≥3.00	≥3.50	≥4.40