« previous next »

Author Question: Why is the contact surface in relays and contactors coated with a special coating of very conductive ... (Read 52 times)

armygirl

  • Hero Member
  • *****
  • Posts: 556
on: Jul 26, 2018
Why is the contact surface in relays and contactors coated with a special coating of very conductive material?
 
  What will be an ideal response?

Question 2

How can a service technician learn what problems a communicating system has been experiencing?
 
  What will be an ideal response?


softEldritch

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 26, 2018
Answer to Question 1

This coating is very thin but effective in preventing the contacts from becoming quickly damaged from the momentary arc as they open and close. This arc would normally cause the contacts to weld themselves together.

Answer to Question 2

Go to the service screens on the communicating thermostat and read the fault history


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Relations of Skull to Surface features Relations of Skull to Surface features
Pineal Gland, Located on the Dorsal Surface of the Midbrain Pineal Gland, Located on the Dorsal Surface of the Midbrain
The terminals are also labeled on most relays. The terminals are also labeled on most relays.
Surface Maps Surface Maps
Basic two-handed kneading. Tissues are lifted with the whole hand in firm contact. Basic two-handed kneading. Tissues are lifted with the whole hand in firm contact.
Stand behind the recipient. Lay your hands on the shoulders to establish contact. Squeeze the ... Stand behind the recipient. Lay your hands on the shoulders to establish contact. Squeeze the ...
Video: Stomach peristalsis & Enterogastric reflex

For a complete list of videos, visit our video library