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

Navigation systems , Navigation Systems  • Traditional guidance systems...

Navigation Systems  • Traditional guidance systems used mechanical gyroscopes (rate gyros) to measure the angular velocities of the vehicle or of the gimbals on which the seeke

Thermo electric thermometer, how thermoelecteric thermometer is contructed ...

how thermoelecteric thermometer is contructed and how it working

CDMA, In a CDMA system, the signal is spread over a large bandwi...

In a CDMA system, the signal is spread over a large bandwidth by multiplying the transmitted symbol by a sequence of short pulses, also called chips. The

Auto cad, Do you provide help with Autocad assignments?

Do you provide help with Autocad assignments?

Math problems solutions matlab, Matlab is a 4th technology selection langua...

Matlab is a 4th technology selection language, which is designed by The MathWorks. It provides an exact processing atmosphere. Matlab works a variety of math features like design o

Diffusion, distingush between short range and long range diffusion

distingush between short range and long range diffusion

Avionic systems design- stability derivatives, The idea of stability deriva...

The idea of stability derivatives is to approximate the general functional relationship between any force ormoment variable and the dynamic or control variables as a Taylor series

Aggregate properties - voids ratio and bulk density, Aggregate properties ...

Aggregate properties 1.Aim: To compare the bulk density, voids ratio and angularity number of a nominal single sized aggregate when subjected to different levels of compaction

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