
Electrical installations are important in buildings. However, imperfect and poorly designed electrical installations can also be a source of danger, for example, leakage currents. Leaking electric currents can cause fires or even electric shocks to humans.
To prevent these detrimental things from happening, an electrical device is needed that can prevent leakage currents and provide maximum protection to electrical installations. This electrical device is an RCCB or Residual Current Circuit Breaker, which is a leakage current circuit breaker. This tool will automatically cut off the electric current when there is a current leak, so it can prevent fires or electric shocks.
However, how should you choose the right RCCB? And what are the advantages of using this RCCB for electrical installations?
What is RCCB?
As briefly explained above, RCCB (Residual Current Circuit Breaker) is also known as RCD (Residual Current Device), which is a protection against leakage currents.
RCCB is an electric current sensing device that can automatically measure the amount of current and break the circuit when there is a disturbance in the connected circuit or when the current has exceeded the measured sensitivity.
RCCB can be installed before the connection, to several MCBs from loads that require protection against leakage current. The use of this device is to protect damage to equipment that is sensitive to electrical leakage, such as surgical medical equipment. This device can also be installed at home to protect the family from the dangers of electric shock.
The presence of RCCB in electrical installations has been proven to be very helpful when there is a sudden ground fault. Because, RCCB will immediately break the circuit, so it can minimize the possibility of electric shock and also fire due to leakage current.
How RCCB Works
This device operates based on the principle of detecting and responding to electrical current imbalances. The main principle involves continuous monitoring of the current flowing through live and neutral conductors.
In a balanced circuit, the current flowing in is the same as the current flowing out and there is no residual current. However, when an imbalance occurs, the current will leak to the ground or to an unwanted path. This is where the RCCB will detect the difference in current.
After sensing the difference in current, the RCCB will quickly cut off the circuit to prevent potential electric shock or fire. This safety mechanism makes the RCCB an important component in the electrical system because it can increase protection against electrical hazards.
How to Choose the Right RCCB
RCCB devices have two functions, namely to protect humans or equipment from the dangers of electric shock.
To choose the right RCCB for use, you can base it on its purpose and application. If your goal is to provide protection for humans, then you can use an RCCB with a current sensitivity of 30 mA. However, if you want to provide protection for equipment from fire hazards, then choose an RCCB that has a sensitivity of 300 mA. Both are also suitable for final distribution applications for apartments and houses.
Then, when choosing this residual current circuit breaker, you also need to consider the type that suits your application. For example, using Type AC for general use or Type A as additional protection against pulsating DC currents. Also, make sure the sensitivity of the RCCB is in accordance with the application requirements.
Advantages of Using RCCB
As a leakage current protection device, there are many advantages that you can get from using RCCB for electrical installations. Here are the advantages:
Electrical Safety
RCCB can provide effective protection against electric shock by immediately breaking the circuit when residual current is detected, thus minimizing the risk of injury.
Fire Prevention
Because of its ability to detect and isolate damaged circuits immediately, RCCB can prevent electrical fires.
Equipment Protection
Another advantage of using RCCB is that this device can protect electrical equipment and tools by preventing damage caused by fault currents, thereby extending the life of the equipment.
Compliant with Standards
The use of RCCB is in accordance with electrical safety standards, meets regulatory requirements, and can improve the safety of the electrical system as a whole.
Flexibility
RCCB is basically a versatile device. This tool can be installed in various electrical installations and offers protection in residential, commercial, and industrial environments.
Fast Detection
With the RCCB's fast response to residual current, it allows for fast detection and mitigation of potential electrical hazards, thus ensuring a safer environment.
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