Electrical de-icing system maintenance, Other Engineering

Assignment Help:

ELECTRICAL DE-ICING SYSTEM MAINTENANCE:

Tests of the system must be carried out when the servicing schedule required it or when a component has been replaced.  Typical tests are outlined below.

  • Continuity and resistance checks should be carried out before the installation of a propeller or when the efficiency of an overshoe's heating surface is suspect. The values of resistance that the elements should have are laid down in the Maintenance Manual.
  • Insulation checks are required to ensure that there is no breakdown of the element's insulation from the propeller blades or other metallic objects.
  • Voltage proof checks are used to ensure that no insulation breakdown exists between the blade and heater element. They involve applying a high voltage between the blade and element and ensuring that no leakage exists. These checks are normally carried out after repairs to the overshoe.
  • Functional tests of the ice protection system chan be carried out noting the current displayed for each of the phases of a.c. power on the flight deck ammeter. To prevent overheating of the elements the engine must maintain a minimum speed while the heating is on, as this allows a flow of air over the blades and engine intake. Some types of aircraft reduce the voltage of the system when the air / ground sense is in the ground mode and this lower voltage must be taken into account when monitoring the ammeter.

Related Discussions:- Electrical de-icing system maintenance

Mosfet, matlab program for studying the characteristics of n channel enhanc...

matlab program for studying the characteristics of n channel enhancement type mosfet

Applied Physics, what types of fringes will be formed if white light is use...

what types of fringes will be formed if white light is used in a Michelson''s interferometer

Effect of precipitate particles in strengthening, Q. Discuss the role of pr...

Q. Discuss the role of precipitate particles, strengthening crystalline materials against yield as low as well as high temperature of deformation. Ans. Effect of precipitate p

Cold junction compensation, Cold junction compensation A recent solutio...

Cold junction compensation A recent solution to the problem of controlling a reference junction temperature is to use a 'cold-junction compensator'. This is an integrated circu

ENGINEERING SCIENCE, QUESTION 7 As a forensic materials expert – you have ...

QUESTION 7 As a forensic materials expert – you have been asked to identify a metallic powder found on the clothing of someone suspected of fabricating an incendiary device used i

TANGENT GALVANOMETER, WHY THE NEEDLE OF TANGENT GALVANOMETER DEFLECT WITH I...

WHY THE NEEDLE OF TANGENT GALVANOMETER DEFLECT WITH INCREASING OR DECREASING CURRENT?

DPC IN CIVIL ENGINEERING, I WANT TO KNOW WHAT IS DPC TERM MEANING IN CIVIL...

I WANT TO KNOW WHAT IS DPC TERM MEANING IN CIVIL ENGINEERING

Risk and return, if we are comparing the risk and return of two stocks. wha...

if we are comparing the risk and return of two stocks. what to calculate, what to analyza and what conclude

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