How circuit breakers can save your life! MCB, RCCB, Galvanic Isolation
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Date: 2020-09-05
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Comments and reviews: 9
Fikri
Here in Malaysia, the voltage is 240V. The live wire can be either brown or red, the neutral one is either black or blue, and the earth one is either green or green-yellow. For triple phase, L1 is red, L2 is yellow, L3 is blue, and neutral is black. According to Energy Commision, all buildings must use RCCB, and its sensitivy for domestic buildings must be maximum 100 mA. Malaysian use the same plug type as in UK (3-pin 13 A and 3-pin 15 A, with some 2-pin plugs for non-earthed appliances. Some people here call RCCB as DB. There are many breaker brands here like EPS, Hager and Schneider.
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Here in Malaysia, the voltage is 240V. The live wire can be either brown or red, the neutral one is either black or blue, and the earth one is either green or green-yellow. For triple phase, L1 is red, L2 is yellow, L3 is blue, and neutral is black. According to Energy Commision, all buildings must use RCCB, and its sensitivy for domestic buildings must be maximum 100 mA. Malaysian use the same plug type as in UK (3-pin 13 A and 3-pin 15 A, with some 2-pin plugs for non-earthed appliances. Some people here call RCCB as DB. There are many breaker brands here like EPS, Hager and Schneider.
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GRBTutorials
I see you have triphasic power in Germany. Here in Spain is monophasic for < 15 kW. MCBs are used for the ICP (Interruptor de Control de Potencia, or Power Control Breaker, that was mandatory for the power utility to know you're not exceeding the power you contracted. However, nowadays it's integrated on the electrical power meter itself. For wire protection, we use double pole magnetothermal circuit breakers (the same, but with two poles that break both phase and neutral.
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I see you have triphasic power in Germany. Here in Spain is monophasic for < 15 kW. MCBs are used for the ICP (Interruptor de Control de Potencia, or Power Control Breaker, that was mandatory for the power utility to know you're not exceeding the power you contracted. However, nowadays it's integrated on the electrical power meter itself. For wire protection, we use double pole magnetothermal circuit breakers (the same, but with two poles that break both phase and neutral.
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Tarek
It did Ave my life, 3 months ago I accidentally grabbed bother wires of 220v(I thought I have unplugged the cable) i started shaking and I couldn't let go the wires (the flexors muscles of the hand are stronger than the extensors, and electricity makes you grabbed the wires even stronger. I thought I was gonna die, and suddenly the lights went off in all house and I was saved by the circuit breaker, thanks Thomas addison, or Nicolas Tesla.
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It did Ave my life, 3 months ago I accidentally grabbed bother wires of 220v(I thought I have unplugged the cable) i started shaking and I couldn't let go the wires (the flexors muscles of the hand are stronger than the extensors, and electricity makes you grabbed the wires even stronger. I thought I was gonna die, and suddenly the lights went off in all house and I was saved by the circuit breaker, thanks Thomas addison, or Nicolas Tesla.
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Brian
Few pieces of vocabulary for US electrics. MSB = Main Service Breaker which provides mains circuit protection, BCB = Branch Circuit Breaker which provides branch circuit protection. GFCI, GFI and GFEP which are all leakage detection systems, GFEP being very specialized for industrial equipment, mostly in large commercial kitchens.
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Few pieces of vocabulary for US electrics. MSB = Main Service Breaker which provides mains circuit protection, BCB = Branch Circuit Breaker which provides branch circuit protection. GFCI, GFI and GFEP which are all leakage detection systems, GFEP being very specialized for industrial equipment, mostly in large commercial kitchens.
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Conner
I have a curious question that maybe you have an idea about. I'm living in Germany and when I try to use my stove and oven at the same time, it trips the RCCB when there is sufficient temperature on both. Each works fine independently, but both at the same time simply doesn't work. Any ideas?
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I have a curious question that maybe you have an idea about. I'm living in Germany and when I try to use my stove and oven at the same time, it trips the RCCB when there is sufficient temperature on both. Each works fine independently, but both at the same time simply doesn't work. Any ideas?
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JAMES
Anything on DC breakers? I'm considering replacing fuses with breakers on my solar system. Up to 60v and 275amps. Batteries are at 29. 4 full charge. Liion. I'm interested in how they work compared to a fuse and ac breakers. Great video. As usual. Keep them coming.
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Anything on DC breakers? I'm considering replacing fuses with breakers on my solar system. Up to 60v and 275amps. Batteries are at 29. 4 full charge. Liion. I'm interested in how they work compared to a fuse and ac breakers. Great video. As usual. Keep them coming.
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LoL
Please for the love of god
Stop saying its the currents that kills
Its actually the Voltage that kills
In order to get hurt you need to have high enough current and to have high enough current you need high enough voltage
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Please for the love of god
Stop saying its the currents that kills
Its actually the Voltage that kills
In order to get hurt you need to have high enough current and to have high enough current you need high enough voltage
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Gaming
I live in Lithuania and also have 400vac here but instead of a grey wire we have to blacks a blue a brown and a ground and we use general electric circuit breakers wich i think need to be replaced ( we also have 230 or 240 Vac)
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I live in Lithuania and also have 400vac here but instead of a grey wire we have to blacks a blue a brown and a ground and we use general electric circuit breakers wich i think need to be replaced ( we also have 230 or 240 Vac)
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Anfrod
Can I ask a question? If someone touches the live wire he gets a shock, even if he wears rubber shoes, right? So can it be that a person can't be insulated from earth and therefore if he touches both wires the RCCB would trip?
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Can I ask a question? If someone touches the live wire he gets a shock, even if he wears rubber shoes, right? So can it be that a person can't be insulated from earth and therefore if he touches both wires the RCCB would trip?
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