In the family circuit, circuit breaker is an important electrical protection equipment, used to protect the circuit and electrical equipment from overload current and short-circuit current damage. The correct selection and layout of household circuit breakers is essential to ensure the electrical safety of the home. This article will introduce the selection principles and layout methods of household circuit breakers to help home users better understand how to select and arrange circuit breakers.

1. Selection principle of household circuit breaker

1.1 rated current

• the rated current of the circuit breaker should be selected according to the circuit load. In general, the rated current of the circuit breaker should be slightly greater than the maximum load current of the circuit to ensure that it can trip in time when the load is overloaded.

1.2 breaker type

• household circuit breakers are generally divided into air switches, leakage protectors and overload protectors. Select the appropriate circuit breaker type according to different circuit requirements.

1.3 safety performance

• when choosing a circuit breaker, pay attention to its safety performance, including overload protection, short circuit protection, leakage protection and other functions to ensure the safe operation of the family circuit.

2. The layout principle of household circuit breaker

2.1 main circuit breaker

• the household circuit should be equipped with a master circuit breaker to control the power supply of the entire household circuit so that the power can be cut off in time when a fault occurs.

2.2 branch circuit breaker

• corresponding circuit breakers are set up according to different circuit branches to control electrical equipment in different areas or for different purposes, which is convenient for troubleshooting and maintenance.

2.3 ground circuit breaker

• in order to improve the safety performance of the circuit, a leakage protector should be set up in the family circuit to detect the leakage and cut off the power supply in time to avoid electric shock accidents.

3. Layout method of household circuit breaker

3.1 living room and bedroom

• in common areas such as living rooms and bedrooms, circuit breakers for lighting circuits and socket circuits can be set to meet the power supply needs of lamps and sockets.

3.2 kitchen and bathroom

• kitchen and bathroom are the key areas of household electricity, and independent kitchen circuit and bathroom circuit breakers should be set to ensure the safety of electricity.

3.3 electrical room and garage

• in areas such as electrical rooms and garages, independent circuit Breaker control electrical equipment and power tools and other electrical equipment to avoid electrical failure.

4. Maintenance and maintenance of circuit breaker

• regularly check the working status of the circuit breaker, keep the circuit breaker clean and dry, and replace the aging or damaged circuit breaker in time to ensure its normal operation.