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

Draw the logic diagram of an sr latch, Q. Draw the logic diagram of an SR l...

Q. Draw the logic diagram of an SR latch using only NAND gates, and obtain the truth table for that implementation.

Name the various magnetically hard alloys, Name the various magnetically ha...

Name the various magnetically hard alloys. Several of the magnetically hard materials are rare earth carbon steel, cobalt, tungsten steel, alnico, hard ferrites and cobalt stee

Ac supply, its defination and mathematical expression if any

its defination and mathematical expression if any

parity flag - registers, Parity flag  - Registers If after  any arit...

Parity flag  - Registers If after  any arithmetical or logical operation if  number of  the accumulator  are even  parity  flag (P)  is set otherwise  reset.

Discrete time system transfer function, For a discrete time unit step input...

For a discrete time unit step input x(kT), the output  y(kT) of a system is shown below,   Part (a)  Obtain the Z-transform of the output signal y(kT).   Part (b)   F

Pdc, disadvantages of shunt clippers

disadvantages of shunt clippers

Explain superconductivity, Explain Superconductivity. Superconductiv...

Explain Superconductivity. Superconductivity - The resistivity of most metals rises with rise in temperature and vice-versa. There are several metals and chemical compounds

Matrix converters, i need tutor for teaching me matrix converter based upfc...

i need tutor for teaching me matrix converter based upfc modelling and building using matlab

Immediate addressing , Immediate  Addressing In this  addressing mode...

Immediate  Addressing In this  addressing mode that 8/16  bit data  is specified  in the  instruction itself  as its  one of the  operands. Normally the instructions  using  a

Customer data management- power supply, Customer Data Management- Power Sup...

Customer Data Management- Power Supply The concept of data warehouse and data mining could be extremely useful for the management of customer data. A data warehouse is a power

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