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It stands for " Residual Current Circuit Breaker "
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∙ 14y ago
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What is mean by 4 pole ELMCB?
Earth leakage miniature circuit breaker (mcb+ecb=rcbo) rcbo is called elcmb
What size breaker for 8kw 277volt heater?
32amp 30ma rcbo
What are advantage and disadvantage of rcbo fuses?
liam murray sucks chull
Can a hair dryer plugged into the wall kill you if you are in water and it is dropped in water?
Absulutly, yes The answer is NOT absolutely yes at all, it depends on whether or not your socket outlets are wired into a modern RCBO at the consumer unit, if they are then the RCBO would trip out the instant the hair dryer touched the water automatically disconnecting the electrical supply hence saving you from electrocution, however, if you are using old style rewirable fuses you would receive an electric shock until the fuse wire burnt out forcing roughly the same amount of amps through your body as the rating on the fuse wire. (it's worth noting that a few milliamps is enough to kill you) Having said all that it's not something I would try out as a faulty RCBO on the installation could also result in electrocution. I'd always be wary about someone who thinks they can answer a question of this nature with two words, one of which is spelt incorrectly when there is a spell check function on the page!!!!!!
Need to know main circuit breakers ratings for cooker lights sockets and showers please?
Depends on Wattage P=VI I = P/V 10kW Shower = 10000/230 = 43.4 Amps (You would use a 50A MCB or RCBO)
What causes a GFCI outlet to trip the dryer is hooked to a GFCI outlet and it keeps tripping you reset it and it works again then it trips again any suggestions?
The key to this situation is to establish whether it is the receptacle or the ( I am presuming a hair dryer and not a clothes dryer). If you have another dryer plug it into the receptacle and see if it also trips. If you don't have another dryer any appliance will do, fry pan or toaster for example. If the receptacle does not trip then the cause is the hair dryer. If the GFCI trips then it should be replaced. The operation of a GFCI is current in "hot" leg should equal current in the return neutral. Replacement can be done yourself. Shut the circuit off at the electrical panel to kill the electrical circuit and install the new one exactly as the old one was wired. P.S. Clothes dryers do not need to be connected to a GFCI breaker. <<>> Your gfci is trying to tell you that in all probability the dryer is too much of a load for the circuit. Call a good electrician!
What is the full form of MCB?
The definition of MCB is a miniature circuit breaker, it trips if there is a line to natural fault. Ill add some extra information about the different types. RCD - residual current device = This is what you could separate you're circuits up with by inserting 1 of these in you're consumer unit (if you have lets say 10 circuits it goes like this... rcd-mcb-mcb-mcb-mcb-mcb-rcd-mcb-mcb-mcb-mcb-mcb-main switch. you see the rcd's control 5 circuits each, if 1 of these circuits had an earth fault on it, the rcd will trip and 5 of them circuits will go off, which means you have to keep tripping in you're rcd with an mcb 1 at a time to see which circuit the fault is on. RCBO - residual current breaker with overload protection- These can be installed in place of mcb's and rcd's, the rcbo is an mcb and rcd in 1 breaker. For example, i have installed a consumer unit full of these, in this case if a circuit forms a fault then its only that circuit that goes off. I hope this extra piece of information helps you along and best of luck. <<>> In electrical terminology MCB stands for Miniature Circuit Breaker.
How is called zeroing a power socket in English when connecting the neutral brown wire to the ground earth yellow green wire?
In English sockets the brown wire is not considered to be neutral. It is considered the hot/live cable.The blue cable is the neutral.The relative voltages areBrown = 230voltsBlue = 0voltsGreen/Yellow = 0 voltsThe effects of crossing the blue and green/yellow cables is called neutralising and is generally done outside of a house. It is perfectly fine to do inside except if there is a GFCI/RCBO (Residual current Devices) in the circuit, which will cause it to trip. It is not OK to leave these cables connected for normal operating of the circuit, as it can leave touch voltages on poorly earthed fittings.The effects of crossing the brown and green/yellow is called "shorting" and will be evidenced by a bright flash of light, a loud bang and a girlie scream.Shorting a circuit will result in the Circuit Breaker tripping under fault load conditions. Repeatedly causing a circuit breaker to trip under such high currents can cause it to fail early in it's life expectancy.If in doubt, get an electrician out.
How does a ground fault circuit interrupter shuts down a circuit?
A ground fault circuit breaker detects leakage current between the hot wire coming off the breaker and the neutral/ground since the neutral is bonded to the ground in the panel, if it senses a current of 6 milliamps or more it will trip. Note: no sharing of the neutral for a circuit on a ground fault breaker If a few milliamps from the hot (black) wire do not return on the neutral (white) wire, then a GFCI assumes that current it traveling harmfully elsewhere through your body. So it disconnects. A GFCI can monitor 15,000 milliamps. But if only 5 go missing, then a GFCI trips.
What is the major difference between ACB and MCCB?
MCB (Miniature Circuit Breaker)CharacteristicsRated current not more than 100 A.Trip characteristics normally not adjustable.Thermal or thermal-magnetic operation.MCCB (Moulded Case Circuit Breaker)CharacteristicsRated current up to 1000 A.Trip current may be adjustable.Thermal or thermal-magnetic operation.RCCB(Residual Current Circuit Breaker)CharacteristicsPhase (line) and Neutral both wires connected through RCD.It trips the circuit when there is earth fault current.The amount of current flows through the phase (line) should return through neutral .It detects by RCD. any mismatch between two currents flowing through phase and neutral detect by -RCD and trip the circuit within 30Miliseconed.If a house has an earth system connected to an earth rod and not the main incoming cable, then it must have all circuits protected by an RCD (because u mite not be able to get enough fault current to trip a MCB)RCDs are an extremely effective form of shock protectionThe most widely used are 30 mA (milliamp) and 100 mA devices. A current flow of 30 mA (or 0.03 amps) is sufficiently small that it makes it very difficult to receive a dangerous shock. Even 100 mA is a relatively small figure when compared to the current that may flow in an earth fault without such protection (hundred of amps)A 300/500 mA RCCB may be used where only fire protection is required. eg., on lighting circuits, where the risk of electric shock is small.
