Name: thermal insulation paper class B for high overload oil immersed transformer
Brand: Rizhi
Availability: InStock

Product Details

Electrical heat-resistant diamond dotted insulating paper(Thermal DDP)

The base paper of thermal DDP is produced from the nitrogenous insulating wood pulp,and diamond coated with special modified epoxy resin on the surface,then cured by phase B.So the thermal DDP has good heat stability,mechanical and electrical properties.It’s ideal material for layer and turn insulation and CTC binding in high overload oil-immersed transformers.

Product Solidification Conditions
Firstly keep 90℃±5℃ for three hours, and then rise temperature to temperature rises to 125℃±5℃,the product will completely solidifies after maintaining for six hours.

Storage
Store in a dry,clean and well-ventilated warehouse, and keep away from fire and heat point, also keep away from the sun. The storage period is one year, qualified products exceeding the storage period can still be used.

Specification

No.	Property		Unit	Requirements
1	Base material thickness and tolerance		mm	0.08±0.005	0.13±0.007	0.18±0.015	0.25±0.020	0.38±0.020	0.50±0.030
2	Base material tightness		g/cm³	0.85~1.10
3	Single-sided adhesive thickness		um	6~12
4	Moisture		%	4.0~8.0
5	Ash		%	≤0.60
6	Conductivity of water extract		mS/m	≤10
7	PH value of water extract		-	6.5~8.5
8	Oil absorption		%	≥20
9	Nitrogen content		%	≥1.5
10	Bonding strength	Normal state	kPa	≥650 ≥400
		100℃±2℃
11	Pollution of transformer oil		-	No pollution（tanδ<0.001）
12	Tensile strength	MD	N/10mmWidth	≥60	≥120	≥160	≥230	≥250	≥300
		CD		≥30	≥60	≥80	≥100	≥120	≥150
13	Elongation	MD	%	≥4.0
		CD		≥2.0
14	Breakdown Voltage	In air	kV	≥0.90	≥1.40	≥2.20	≥2.30	≥3.00	≥4.00
		In oil		≥5.50	≥8.00	≥10.00	≥12.00	≥15.00	≥20.00

Shirly Zhu

Nantong Rizhi Electric Power Material Co.,Ltd

Add:No.99,Tangang Road,Hai'an High-Tec Zone,Nantong City,Jiangsu Province,China 226600

Mobile:0086-13813792736(whatsapp)

Email:sales06@rzinsulation.com

Tel:0086-513-88856569

Web:www.rzinsulation.com