Übersetzung für "Hazardous voltage" in Deutsch

The electrical discharge protects electronic assemblies against hazardous voltage spikes.

This voltage of the solar modules connected into strings can amount to several 100 V, and in large systems operation voltages of about 1000 V or even more may exist, which is a hazardous voltage when contacted.

The protective device, which in one embodiment is arranged spatially as close to the PV generator as possible, and which is connected at its input to the PV generator, and at its output connected to an inverter, which eventually is remotely located, exposes the output initially only to the non-hazardous low voltage.

Input and output of the protective device are separated then by the switching device and the output is again exposed to the non-hazardous low voltage only.

If, additionally, the maximum output voltage of each of the partial PV generators 1 is smaller than the voltage limit of 120 V that is considered as dangerous, in a hazardous situation there is at no point of the PV system any hazardous voltage, even not within a partial PV generator 1 or on the lines connecting it with the respective protective device 100 .

In this manner it is ensured that the initiating of the starting process in the smart solar junction boxes 12 is only successful if the electrical circuit of string 20 is closed so that no hazardous open voltage can occur.

In the safe state, the injected starting current will flow or run through the serial string line and the solar junction boxes, so that it is ensured that the string line is closed and no hazardous open voltage will be produced upon reconnection.

The insulation and line configuration is such that an insulation fault in a line or a terminal does not directly result in any risk, i.e., in a hazardous touch voltage between the housing and earth.

In other words, each of the two ends of the string is electrically connected to the respective associated DC input of the inverter via a respective string line, and in the operating state a voltage hazardous when contacted is applied between the two ends of the string, namely the total voltage of the entire serial string.

Although photovoltaically generated electrical power is provided from the string in the protective state, the voltage will therefore still be below the threshold of a dangerous contact voltage, although the entire string provides 800 V of nominal voltage in the operating state, which is a dangerous, or hazardous, contact voltage.

In other words, on the string side, the start box 70 is connected to the positive and negative ends 20 a, 20 b of the string 20, so that in the operating state the voltage of the entire string 20 is applied at the start box 70, which is a hazardous contact voltage.

This inverter-side section 106 may be tested in an inverter-side testing process prior to performing further test and startup processes, in particular those described in WO 2014/122325 A1, in order to determine that no hazardous open contact voltage can arise at the inverter-side section 106 of the string lines 102 a, 102 b.

The housing 69 of start box 70 accommodating the test circuit 71 is a voltage-proof housing, optionally with plug-in connectors approved for a hazardous contact voltage, e.g. up to 1000 V, since in the operating state the entire voltage of the string 20 is applied to the test circuit 71 in housing 69 .

This has the advantage that the power from solar module 31 can be used to perform test and startup processes in the photovoltaic system 10, but no hazardous contact voltage will be applied before the present testing processes have been performed and respective enabling conditions have been met.

To eliminate human exposure to unforeseen factors applied additional means of protection - Grounding portable, does not allow to appear on the zone installation voltage hazardous to human values.

If in a domestic fire the modules are not damaged by the fire and still produce the hazardous voltage, the PV array is to be treated the same way as a domestic electrical installation in case of fire.

Thus, many are interested in and how to make ground in the bathroom and to prevent the appearance on the installation of metal components of hazardous voltage.

If the ground is not connected to the water-supplytubes, batteries, valves, and other conductive parts of the apartment, between a wiring connected to these appliances and parts, hazardous voltage will appear.

Such known devices are not suited to use for protection against fault currents in connection with power supplies with an energy storage means since the energy storage means involves the danger that the load connected with the supply will still receive a hazardous voltage even after a switching down of the power supply so that such stored energy will cause the load to perform erratic movements.

You must be careful, because thou hast with hazardous live voltages to do.

The barbed wire fence shall avoid touching of antenna parts with hazardous voltages.

The fence for keeping visitors away from the mast with its hazardous voltages.

The impedance between vehicle body and the running rail shall be low enough to prevent hazardous voltages between them.

The absence of political leadership that characterizes generates hazardous voltages in European public opinion as no explanation is clear on the decisions taken and even less about the way forward.

Although it would be technically correct the combination of a sine wave oscillator, power amplifier and reverse used mains transformer can't be recommend as one would work with hazardous voltages which may cause personal injuries.

Standard EN50191, "Erection and operation of electrical test equipment", describes the workplace design requirements for test stations where hazardous voltages are present.

As explained in more detail below, in case of danger the protective device prevents the occurrence of hazardously high voltages at its outputs 103, 104 and, thus, at the DC lines 3, which lead to the inverter.

This voltage of the solar modules connected into strings can amount to several 100 V, and in large systems voltages of about 1000 V or even more may be present, which is a hazardous voltages when being touched.

This voltage of the solar modules connected into strings can amount to several 100 V, and in large systems voltages of about 1000 V or even more may be present, which is a hazardous voltages being touched.

If a plurality of solar junction boxes 12 would simply open the short-circuiting switch 52 and close the isolating switch 51 at the same time, this would lead to a situation where voltages hazardous upon contact might be produced.

To prevent the occurrence of hazardous voltages in case of fire or maintenance during operation of a PV system, it is known to arrange switching devices, such as air gap switches or semiconductor switches, in close proximity to the PV modules, for example, in a junction box of the PV module, the switching devices switching the connection lines between the PV modules and the inverter into a de-energized state when being switched via central lines by the inverter or another control center.

In the examples shown, the element 4 of the first device 3 has this hazardously high voltage.

Even in such situations, elements 4 in devices 3 of the vehicle 1 can have a hazardously high voltage in the event of a human being coming into touching contact therewith, and it is possible for an accident to take place at the hands of a third party.

Printed conductors or leads for module powering can in particular be routed via other modules without perforce increasing the expenditure requirements for protecting the interfaces from hazardous voltages.