Massive Selection for FTX30 (PZ30) Modular Terminal Combination of Electrical Appliances to Naples Importers

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USE:

FTX30 modular terminal combination of electrical is suitable for the power supply system end with rated voltage 30V (or 400V), rated current ≤ 240A, each short-circuit protection of the rated current ≤100A, for the protection of power distribution, overload, short circuit and it passed CCC certificate.

131524-2





Breguet’s safety device The development of electric technology would be impossible without some simple but necessary components. One of them is a safety device. Louis-François-Clement Breguet, a French watchmaker, was the first one to introduce a solution to the problem of electric circuit protection in 1847. He offered to use short conductors with small cross-section made of low-melting metals to protect telegraph lines from lightning strokes. In his letter to the French Academy of Sciences on May 3, 1847, he wrote the following: to protect devices and especially the workers of the telegraph station I recommend using conductors with a diameter of 3-4 mm made of iron and situated 5-6 mm from the device. If we connect wires of a large diameter to thinner ones made of the same metal, the conductor can carry only the amount to electricity necessary for the devices at the stations to operate. In case of a breakage, for instance, due to a lightning stroke, the safety devices are destroyed outside rather than inside the building. Despite the fact that Breguet himself has never started manufacturing these devices, his offer marked the beginning of the electric safety devices’ history.

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