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Why is it important to use the correct size cable and circuit breaker?
Wiki User
∙ 12y ago
Because of resistance drop; if the cable is too long, you could be drawing additional amperage because of line loss (inductive load), or losing excessive power in the cable. Additionally, the gauge of the cable should be considered as well.
If you are using a GFI circuit breaker, too long of a run can cause the GFI to continually pop because of inductance and line loss.
Wiki User
∙ 12y ago
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What is the smallest size circuit breaker found in the normal home?
The biggest circuit breaker in any home is the main breaker located in your main breaker panel that is installed where your electrical service cable comes into your home.
A small appliance circuit will be protected by a circuit breaker rated at?
Yes, it will be protected by a circuit breaker or fuse. The normal rating of the circuit breaker or fuse is 25% more than the maximum current expected, or the maximum current allowed for the cable size, whichever is lower.
Lost electricity to 3 rooms and you checked the circuit breaker and they are all in What else might be the problem?
Cable worked loose. Or there might be another breaker box somewhere else in the house, previously unknown to you.
What is racking a circuit breaker?
Racking a ciruit breaker has no place in Home Electricity. It is a purely industrial or utility activity. It refers to the act of disconnecting an open (off) high voltage circuit breaker from both the electrical supply and the load by racking (winding, if you like) it out of an enclosure.Further AnswerRacking provides a method of isolating a high-voltage metal-clad circuit breaker (in the UK, typically 11 kV) from its supply and load circuits, and/or to provide earthing (grounding). Before racking, the circuit breaker must be opened, and this is usually ensured using an interlock system. Racking describes lowering a circuit breaker so that its bushings physically disconnect from fixed busbars/cables typically located above the circuit breaker. Once racked down, the circuit breaker can either be withdrawn to allow it to be maintained, or it can repositioned before being racked up to connect either the busbars or the cable to earth (ground).
Is 10mm cable safe for 50a breaker?
10mm cable is overkill for a 50 amp breaker. You can definitely use it.
How long is the main ring?
If you are talking about an electrical ring main it can be as long as you want it as long as it returns back to the circuit breaker with the other end of the cable, which if you didn't return the 2nd end of the cable to the circuit breaker you would have a radial circuit.
Is there a circuit breaker that is operated by a signal sent down the same cable that's supplying power to it?
yes it is the main breaker
What is the testing procedure for an earth leakage circuit breaker?
You can test this breaker by clamping it onto the earth cable. This will provide you with the measurements that you need.
What is the smallest size circuit breaker found in the normal home?
The biggest circuit breaker in any home is the main breaker located in your main breaker panel that is installed where your electrical service cable comes into your home.
Where is the motor relay circuit breaker located on a 1989 mustang?
The motor relay circuit breaker may be found on the driver's side of the vehicle, on or near the fender apron. There is a cable that runs from it to the battery.
A small appliance circuit will be protected by a circuit breaker rated at?
Yes, it will be protected by a circuit breaker or fuse. The normal rating of the circuit breaker or fuse is 25% more than the maximum current expected, or the maximum current allowed for the cable size, whichever is lower.
What is point to point electrical connection mean?
It is the begining of electrial circuit, or where the power comes from, to the end point where it will be used. "Example" circuit breaker panel box has the power, circuit breaker controls the power the cable allows the power to flow to the outlet so when electrical device is plugged in it works.
Lost electricity to 3 rooms and you checked the circuit breaker and they are all in What else might be the problem?
Cable worked loose. Or there might be another breaker box somewhere else in the house, previously unknown to you.
You have 35mm2 armoured cable length 125M what will be the appropiate protecting device to be use. iam thinking of using 250Ampbreaker ELCB?
Depending on how the cable is installed, I would recommend a 125A Circuit Breaker.
Cause of a circuit breaking tripping?
Tripping is caused by excessive current, which is usually the result of a fault in cable or equipment. The circuit breaker is there for safety and it trips to prevent a possible fire starting.
How do you calculate appropriate circuit breaker in the circuit for ac voltages?
It is depending on : whether the ac power is 110 or 220 v , length of wire/cable from mains to CB(circuit breaker),diameter of wire/cable consumption of circuit ( How much watts the circuit consume) i.e load .. don't forget this relation I=V/R . where I= current (amps) , V=voltage & R= resistance also I=P/V where P is power in watts . note that less voltage or thinner wire may affect the real rating of CB
What is racking a circuit breaker?
Racking a ciruit breaker has no place in Home Electricity. It is a purely industrial or utility activity. It refers to the act of disconnecting an open (off) high voltage circuit breaker from both the electrical supply and the load by racking (winding, if you like) it out of an enclosure.Further AnswerRacking provides a method of isolating a high-voltage metal-clad circuit breaker (in the UK, typically 11 kV) from its supply and load circuits, and/or to provide earthing (grounding). Before racking, the circuit breaker must be opened, and this is usually ensured using an interlock system. Racking describes lowering a circuit breaker so that its bushings physically disconnect from fixed busbars/cables typically located above the circuit breaker. Once racked down, the circuit breaker can either be withdrawn to allow it to be maintained, or it can repositioned before being racked up to connect either the busbars or the cable to earth (ground).
