TUP Covered Strips

TUP Covered Strips (Thermally Upgraded Paper Strips)

TUP Covered Strips are high-quality insulated conductor strips designed for transformer applications. These strips use advanced insulation materials that ensure excellent thermal stability, electrical insulation, and mechanical strength, making them ideal for modern transformers where reliability and safety are critical.

Manufactured with precision, these strips meet international quality standards and are suitable for both oil-filled and dry-type transformer applications.

Paper Types & Properties

Type	Grade	Thickness (mm)	Tensile (Nm/g)	Density	BDV (kV/mm)	Specific Properties
Kraft Paper	—	1.5	MD 192 / CD 19	0.79	10.5	General purpose for oil-filled transformers
	—	2	MD 59 / CD 13	0.81	1.2	—
	—	2.5	MD 199 / CD 19	0.83	10.3	—
Aramid Paper (Nomex)	410	2	MD 43 / XD 19	0.72	18	High electrical, thermal & chemical resistance for dry-type applications
	411	5	MD 18 / XD 9	0.30	9	—
Crepe Paper	—	0.15 – 5	As per base paper	1.25–1.75× Kraft	10.2	Stretchable, ideal for rectangular winding

General Parameters

Parameter	Details
Conductor Type	Rectangular Strips
Standards	EN, ASTM, DIN
Grade	EC Grade
Temper	Soft
Insulation Type	TUP Covered
Paper Type	Kraft / Crepe / TUP
Number of Layers	As per requirement

Size Range

Dimension	Range
Width	4 mm to 15 mm
Thickness	1.5 mm to 5 mm

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