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

Forward voltage triggering , Forward Voltage  Triggering If V a is i...

Forward Voltage  Triggering If V a is increased the collector to emitter voltages of both  transistor are  also increased. Hence  the leakage current at J 2 increase. This

Explain the power chart, Explain the Power Chart The phasor diagram sho...

Explain the Power Chart The phasor diagram shown in Figure with the x and y axes added, as shown. This diagram may be converted to a 'power chart' by multiplying each phasor in

Microcontroller - introduction to microprocessors , Microcontroller Mic...

Microcontroller Microcontroller  is also known  as computer  on a chip  this  includes basic  features of microprocessor (ALU Registers  and control circuits ) with  1 k to 2k

Find the power amplification, The constants of an amplifier are given by A ...

The constants of an amplifier are given by A = 1, R i =10,000, and R o = 100. It is driven by a Thévenin source with v Th (t) = V O cos ωt and R Th = 20,000 . The amplifier o

Transformer question, When I read the details of how a transformer works an...

When I read the details of how a transformer works and apply those rules to a transformer where the primary core cross-sectional area is twice that of the secondary, I come up with

Electrical engineering, 4. Modify the circuit designed for question 3 to pr...

4. Modify the circuit designed for question 3 to provide an emergency stop which will park both cylinders in the extended position (i.e. A + B +). 5. Modify the circuit designed fo

Loss reduction and efficiency of electrical energy, Loss Reduction and Effi...

Loss Reduction and Efficiency Improvement of Electrical Energy 1. There are inherent losses in Transmission and Distribution of electrical energy from Generating station

Semiconductor, What is the similarities between a vacuum diode and a triode...

What is the similarities between a vacuum diode and a triode?

1- phase full bridge inverter with r- load , 1- phase  Full Bridge Invert...

1- phase  Full Bridge Inverter with R- Load 1-phase full  bridge inverter with resistive load R i it has  advantage over 1-? half  bridge  inverter that it does  not require

Minimized circuit using or and and not gate, Given S(F) = A'B +'C'D + C'D +...

Given S(F) = A'B +'C'D + C'D +'A'B + 'A B + 'A 'C + 'A D + 'A C A. DRAW A MINIMIZED CIRCUIT USING ONLY OR AND NOT GATES (2 input gates) B. WRITE THE WIRE LIST Example of a

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