Electrical Wiring Residential
Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 26, Problem 1R

In your own words, explain the terms alarm and detector.

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Expert Solution & Answer
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To determine

Explain in details about the terms “alarm” and “detector”.

Explanation of Solution

Discussion:

The device which provides a warning signal is known as an alarm and it works with the help of a detector when the minimum acceptable protection level is exceeded. An alarm plays a key role in the security systems of mines, residential buildings, and industries.

Example: Smoke alarms, Heat alarms, and Carbon monoxide alarms (alarms for explosive gases).

A detector is the device which has a sensor in the circuit. Sensor responds to the physical stimulus such as smoke, heat or some explosive gases.

Example: Smoke detectors, Heat detectors, and explosive gas detectors.

An alarm works with the co-ordination of a detector which has a pre-programmed sensor for the minimum acceptable levels of smoke, or heat, and so on, based on the application of an alarm.

Conclusion:

Thus, the terms “alarm” and “detector” are explained.

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