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

Evaporation, 2-17 Given a wind speed of 5.0 m/s at 2 m above the ground and...

2-17 Given a wind speed of 5.0 m/s at 2 m above the ground and a roughness length of 0.8 cm, compute (a) the friction velocity, in centimeters per second, and (b) the wind speed, i

Research paper, You will research an issue relating to money and banking. Y...

You will research an issue relating to money and banking. You will write an eight- to 10-page paper discussing your research, in depth. You will also need to relate your research t

Zero-coupon bond, Zero-Coupon Bond is a type of bond gives no periodic inte...

Zero-Coupon Bond is a type of bond gives no periodic interest payments, instead is sold at a steep discount from its face value. Due to these bonds these do not pay interest until

Shell moulding process merits and demerits, Q. Describe shell moulding proc...

Q. Describe shell moulding process merits and demerits . Ans. Shell moulding process           Merits                                                   (i) Bett

Circuit, in the circuit what is the voltage at point with respect to ground...

in the circuit what is the voltage at point with respect to ground

Principles of suveying, the true length of a line is known to be 500m.the ...

the true length of a line is known to be 500m.the line was again measured with a 20m tape and found to be 502m,what is the correct length of the 20m tape.

Logic gates, Logic Gates: The term logic in electronics refers to the r...

Logic Gates: The term logic in electronics refers to the representation and logical manipulation of numbers usually in a code employing two symbols. i.e., bits. An electron

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