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Using a fuse correctly rated for current but "overrated" for voltage does not present a problem. Current ratings are critical safety issues, and fuses should be replaced with those of the same current rating. But using a fuse with an identical current rating but a higher voltage rating is not a problem. The reason for that lies in what the voltage rating of a fuse is. Fuses are given a voltage rating to state a maximum voltage in a circuit that they are designed to protect. And the voltage rating has nothing to do with the "normal" operation of the fuse. The fuse carries current when it operates normally, but when something happens and excessive current flows, the fusible link heats up and opens. This is where the voltage rating comes into play. It is possible that a fuse can arc through when it fails. It is the voltage rating that stands in the way of this. As long as the voltage rating of a circuit is not beyond the voltage rating of the fuse, that fuse will fail safely when it fails. It is acceptable to use a fuse of an equal current rating but a higher voltage rating when replacing a fuse that has failed.
The supply won't have to work as hard. It is perfectly acceptable, for example, to use a 1A, 12v supply to supply a 12v, .5A load. The current rating indicates the ability of the supply to dissipate heat caused by the current flowing. If the load current is above the power supply current rating, the power supply will overheat.
putting cells in series gives you a higher voltage but at the same current rating. putting cells in parallel gives you the same voltage but at a higher current rating. series parallel can give you both..
Depends on the rating of the source. For the same electrical load, a higher voltage will require lower current, but there's no specific current associated with 440V.
It depends what you mean by a 'high rating'!If you mean a high 'voltage rating' then, yes, you will require thicker insulation. But if you mean a high 'power rating', then, not necessarily, because the voltage can be low, while the current is high.Remember, the thickness of insulation depends on the voltage, while the type of insulation (how it withstands higher temperatures) depends on the current.
The camera will draw the amount of current it needs to function. As long as the voltage is within the rating of the camera you are okay.
The amperage output on an adapter is the rating applied by the design manufacturer. Connecting a load that draws more that the design limit of the adapter will damage the adapter. As long as your connected load stays under the adapters rating there is no problem.
Usually the current rating for a circuit is higher than the current usually taken. This leaves a little margin for safety.
It should be, yes. Never higher.
Using a fuse correctly rated for current but "overrated" for voltage does not present a problem. Current ratings are critical safety issues, and fuses should be replaced with those of the same current rating. But using a fuse with an identical current rating but a higher voltage rating is not a problem. The reason for that lies in what the voltage rating of a fuse is. Fuses are given a voltage rating to state a maximum voltage in a circuit that they are designed to protect. And the voltage rating has nothing to do with the "normal" operation of the fuse. The fuse carries current when it operates normally, but when something happens and excessive current flows, the fusible link heats up and opens. This is where the voltage rating comes into play. It is possible that a fuse can arc through when it fails. It is the voltage rating that stands in the way of this. As long as the voltage rating of a circuit is not beyond the voltage rating of the fuse, that fuse will fail safely when it fails. It is acceptable to use a fuse of an equal current rating but a higher voltage rating when replacing a fuse that has failed.
The supply won't have to work as hard. It is perfectly acceptable, for example, to use a 1A, 12v supply to supply a 12v, .5A load. The current rating indicates the ability of the supply to dissipate heat caused by the current flowing. If the load current is above the power supply current rating, the power supply will overheat.
putting cells in series gives you a higher voltage but at the same current rating. putting cells in parallel gives you the same voltage but at a higher current rating. series parallel can give you both..
A circuit breaker does not give off amperage. A circuit breaker allows a flow of current up to the rating of the breaker. Any current higher than that of the breaker's rating will open the breaker's contacts and stop the flow of current.
If it fits you are fine. You are at the same current and the voltage rating is higher.
Depends on the rating of the source. For the same electrical load, a higher voltage will require lower current, but there's no specific current associated with 440V.
A fuse is designed to "open" if the current exceeds the specifications of what it is protecting. I have never heard of an 11 A circuit. If you are trying to protect a device that has an 11 A rating it needs an 11 A fuse. With a lesser rating the fuse will blow whenever the current exceeds the rating and if you use a higher rating it won't protect the device. Also recognize that fuses have different response times to allow some surge current without blowing. For example a skow blow fuse will allow an over-current for a small amount of time before blowing.
It depends what you mean by a 'high rating'!If you mean a high 'voltage rating' then, yes, you will require thicker insulation. But if you mean a high 'power rating', then, not necessarily, because the voltage can be low, while the current is high.Remember, the thickness of insulation depends on the voltage, while the type of insulation (how it withstands higher temperatures) depends on the current.