7 Questions
What is the purpose of electrical safety devices?
To prevent fire and electrocution
What do over-current protective devices do?
Cut off the line when current capacity is exceeded
What do protective devices prevent?
Abnormal voltage, overloading, wiring and transformer damage, and accidental contact with damaged equipment
Which type of circuit protective device is the simplest and most common?
Fuses
What should the fuse rating be equal to?
The maximum current rating of machinery/appliances in the circuit
What is the main difference between fuses and circuit breakers?
Circuit breakers are considered safer than fuses
Why is the circuit breaker position easier to detect than a busted fuse?
Because circuit breakers are more visible than fuses
Study Notes
- Electrical safety devices are important to prevent fire and electrocution.
- Over-current protective devices cut off the line when current capacity is exceeded.
- Protective devices prevent abnormal voltage, overloading, wiring and transformer damage, and accidental contact with damaged equipment.
- Fuses are the simplest and most common type of circuit protective device.
- Fuse rating should be equal to the maximum current rating of machinery/appliances in the circuit.
- Circuit breakers do the same job as fuses but are not destroyed when activated.
- Circuit breakers are equipped with an automatic tripping device to protect against overload and ground fault.
- Circuit breakers can act as a switch and protect/switch up to three lines.
- Fuses are cheaper, but circuit breakers are considered safer.
- Circuit breaker position is easier to detect than a busted fuse.
"Test your knowledge on Electrical Safety Devices and learn about the importance of protecting your home and appliances from fire and electrocution. From fuses to circuit breakers, this quiz covers everything you need to know about over-current protective devices, abnormal voltage prevention, and wiring and transformer damage. With keywords specific to the topic, you'll discover which protective device is best for your needs and how to ensure maximum safety for your electrical systems. Take the quiz now and become an expert on electrical safety devices!"
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