Industrial Electrical Engg Company

Established since 1921

Nomex Mica Paper Tape

Scope : This specification to the manufacturing and supply of silicon vamish bonded. Nominal thickness 0.125 mm, suitable for Traction Motor Coils, requiring maximum resistance to high voltage and temperature of Class “H”.

Construction : Nomex Mica Paper Tape & Wrrapper shall be made to mills thickness Nomex Paper and 0.100-0. 120 gsm/Sq.mtr. uniform Mica Paper bonded with an insulation silicon varnish, capable to temperature 180 C. The Varnish shall be cured to the tack free.

TECHNICAL PARTICULARS AND SPECIFIC REQUIREMENTS

 

Sr.no.

 

Particulars

 

Unit

 

Specific Requirement

 

1.

 

 

 

Thickness

Maximum

Minimum

 

MM

MM

MM

 

0.125

0.14

0.11

 

2.

 

 

Width (For Tape)

 

 

 

MM

 

 

Nominal + 1

(Nominal width is specified by the buyer)

3.

 

Length per Roll (For Tape)

 

Meter

25, 30 and 50

4.

 

Tolerance of Length

Meter

+ 1

5.

 

Size of Wrapper

MM

Nominal + 15

(Nominal width is specified by the buyer)

6.

 

Mica Content (Minimum)

% by Weight

50

7.

 

Bond Content (Minimum)

% by

Weight

15

8.

 

Breakdown Voltage

(Minimum)

KV

3.5

9.

 

Tensile Strength (Minimum)

Kg/cm

4

 

10.

 

Winding Property

 

Good

11.

 

Flexibility:

To be satisfactory at ambient Temperature

12.

 

Inflammability:

 

Does not catch fire within stipulated time period

13.

 

Class of Insulation

Class ‘H’ (180ºC)

   

 

 


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