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Mermaid alonso mp 1000
hace 5 años
hace 5 años
Hello good night, I would like to know what is the maximum distance that I can install the Siren of the central. La Sirena is an alonso mp 1000
3.234
hace 5 años
hace 5 años
For the calculation of voltage drop in the cable, we will use the following formula∆U = 2⋅R⋅I = 2⋅I⋅ρ⋅L / SdondeL = Cable length (m) S = Cable section (mm2) ρ = Cable resistivity (Ω · mm2 · m-1). Rho. For a copper cable, it is 0.0172I = Intensity (A) Thus, if we have a 100m wiring, taking a standard camera that consumes 0.5A, with a 1mm2 section power cable, the voltage drop is∆ U = 2 x 0.5 x 0.0172 x 100/1 = 1.72v This means that if from the source we go out with 12v, the camera will reach 10.28v
9.854
hace 5 años
Good.
Well, for about 50 meters, as it is an outdoor siren, I suppose it will always carry the 12 volt supply, and then it will be activated due to the absence of positive or negative, I do not know that siren exactly, but most are the same.
The best thing is to put a power supply, which for 50 meters, with a 4 amp, and a 1.5 mm cable section, that is, electric cable that is used there for the lighting section, is that in each The country is a different metric, and after the shot, it is taken from the center with a section just like the power supply.
Greetings.
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