Classify the different types of insulating materials, Electrical Engineering

Assignment Help:

Classify the different types of insulating materials with reference to their limiting safe temperatures for use.

On the basis of insulating materials and their limiting safe temperatures utilization, classification is as follows:

 

Class

Maximum working temperature

Materials or Combination of materials

 

Y

 

900C

Cotton, paper, silk, press board,

PVC with or without plasticiser, wood and vulcanised natural rubber.

 

A

 

1050C

Cotton, silk and paper while immersed or impregnated in a liquid dielectric as oil.

 

E

 

1200C

Materials possessing a degree of thermal stability permitting them to be operated at temperature 150C higher than class A materials.

 

B

1300C

Mica, asbestos and glass fibre with appropriate bonding substances.

 F

1550C

Mica, asbestos and glass fibre with appropriate bonding substances including other materials, not essentially inorganic, that by experience or accepted test can be demonstrated to be able of operation at 1550C.

 

H

 

1800C

Materials as silicon elastomer and combinations of materials, as mica, asbestos and glass fibre, with appropriate bonding substances as suitable silicon resins.

C

above 1800C

Mica, glass, porcelain and quartz along with or without an inorganic binder.

 


Related Discussions:- Classify the different types of insulating materials

What are plastics, What are plastics? Plastics are materials (containi...

What are plastics? Plastics are materials (containing carbon as common element) that have organic substances of high molecular weight and are able of being formed in required

Give an introductive notes about fet amplifier, Q. Give an introductive not...

Q. Give an introductive notes about FET amplifier ?  The small signal models for the common source FET can be used for analyzing the three basic FET amplifier configurations: (

Use mesh analysis and nodal analysis to determine current, Q. Use (a) mesh ...

Q. Use (a) mesh analysis and (b) nodal analysis to determine the current through the 4-resistor of the circuit of Figure.

Ldax load accumulator indirect instruction , LDAX  Load Accumulator Indire...

LDAX  Load Accumulator Indirect Instruction This instruction is used to copy data  from memory  location pointed by register  pair only  BC or DE  to the accumulator  HL pair

Machine control instructions , Machine Control Instructions Instructio...

Machine Control Instructions Instructions used to control  various machine operations are kept  in this group.

Distribution loss reduction and efficiency improvement, Distribution Loss R...

Distribution Loss Reduction and Efficiency Improvement You are well aware of the fact in which all energy supplied to a distribution utility does not reach the end consumers.

Explain position servo in a radar system, Q. Explain Position servo in a ra...

Q. Explain Position servo in a radar system? Figure depicts the essential elements of a position servo system. In a radar system, an electromagnetic pulse is radiated from an a

Binary to octal conversion, Binary  to Octal Conversion To convert a b...

Binary  to Octal Conversion To convert a binary  number into octal  divide the number into  group  of three  bits each  starting from the least significant bit. Then put equiva

Load carrying capacities , Task a)    Investigate and describe the sign...

Task a)    Investigate and describe the significance of the following: i.    Slenderness ratio and buckling in columns ii.    Effective length of columns b) Explain Eu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd