The Experts below are selected from a list of 180 Experts worldwide ranked by ideXlab platform

Pedro G. Vidal - One of the best experts on this subject based on the ideXlab platform.

  • Guidelines for protection against Electric Shock in PV generators
    IEEE Transactions on Energy Conversion, 2009
    Co-Authors: Jesus C. Hernández, Pedro G. Vidal
    Abstract:

    This paper assesses the protection against Electric Shock in a photovoltaic generator (PVG), the dc side of a PV installation. Within this context, we discuss the applicability of the protection requirements of the International Electrotechnical Commission 60364, the international standard that provides guidelines for wiring in low-voltage (LV) Electrical installations. The unique operational characteristics of a PVG, which differ from those of a conventional ac LV system, made it necessary to revise and adapt these requirements. With a view to discovering the effectiveness of Electric Shock protection in ungrounded PVGs, we carried out both a theoretical and practical study in a real PVG in order to analyze its Electrical behavior. As part of our study, the feasibility of applying an "active" means of protection was experimentally tested in this same PVG.

Jesus C. Hernández - One of the best experts on this subject based on the ideXlab platform.

  • Guidelines for protection against Electric Shock in PV generators
    IEEE Transactions on Energy Conversion, 2009
    Co-Authors: Jesus C. Hernández, Pedro G. Vidal
    Abstract:

    This paper assesses the protection against Electric Shock in a photovoltaic generator (PVG), the dc side of a PV installation. Within this context, we discuss the applicability of the protection requirements of the International Electrotechnical Commission 60364, the international standard that provides guidelines for wiring in low-voltage (LV) Electrical installations. The unique operational characteristics of a PVG, which differ from those of a conventional ac LV system, made it necessary to revise and adapt these requirements. With a view to discovering the effectiveness of Electric Shock protection in ungrounded PVGs, we carried out both a theoretical and practical study in a real PVG in order to analyze its Electrical behavior. As part of our study, the feasibility of applying an "active" means of protection was experimentally tested in this same PVG.

Richard A Gustafson - One of the best experts on this subject based on the ideXlab platform.

  • Failure of Electric Shock Treatment for Rattlesnake Envenomation
    Annals of emergency medicine, 1991
    Co-Authors: Richard C Dart, Richard A Gustafson
    Abstract:

    The use of high-voltage Electric Shock therapy for the treatment of snake venom poisoning has recently gained popularity in the United States. We present a case that documents the dangerous, ineffective application of Electric Shock to the face of a patient envenomated by a Great Basin rattlesnake (Crotalus viridis lutosus). The successful use of antivenin in this critically ill, antivenin-allergic patient is described.

Helmut Hintz - One of the best experts on this subject based on the ideXlab platform.

  • Protection against Electric Shock
    INTELEC 05 - Twenty-Seventh International Telecommunications Conference, 2005
    Co-Authors: Helmut Hintz
    Abstract:

    IEC Technical Committee (TC) 108 is developing an entirely new safety standard, applicable to consumer electronics, information technology equipment and telecommunications equipment. The standard will be performance based and technology independent. The standard is being developed using sound engineering principles and will clearly identify the hazards addressed. This is a "hazard-based safety engineering" concept (HBSE-Concept). (IEC = International Electrotechnical Commission) This new standard is radically different from previous standards. It is a "hazard based standard "(HBS) addressing all hazards, which could be present in equipment falling under the scope of the new IEC 62368. In this presentation an overview of the new standard is given. On the example of the protection against Electric Shock details of the hazard-based concept are discussed. An Electric Shock depends on various parameters and causes different reflexes of the human body. This presentation discusses the parameters of the Electrical power energy source and the parameters of the human body. It shows that an injury of a person could only happen, if energy is transferred to the body of the person. This is shown in model of injury (energy source rarr energy transfer rarr injury of the human body). As consequence, there is no injury if there is no energy transfer. To avoid an injury, the transfer of energy has to be blocked by a safeguard or by limiting the energy of the source to safe levels. It is shown in a model for safety (energy source rarr safeguard rarr safe human body). Limits for three classes of Electrical energy sources are presented depending on the different parameters of the power source, such as voltages and currents for dc, low and high frequencies, as well as for single pulses. Depending on the classification of the Electrical energy source different kinds of safeguards are specified (principle safeguards, supplemental safeguards, reinforced safeguards). Safeguards for protection against Electric Shock could be insulation (basic; supplemental, reinforced), components (e.g. transformers, capacitors, resistors) and conductors (PE-conductor). Detailed requirements for the parameters of the safeguards are given in the standard. This presentation shows the concept, only. The classification of the Electrical energy source are based on pilot publication such as IEC 60479 and IEC 61201 taking into account the latest proposals for the modification of theses publications. The requirements for the parameters of the safeguards are detailed in the new standard. This presentation gives a short overview, only

Shao Limin - One of the best experts on this subject based on the ideXlab platform.

  • An Automatic and Quick Detection Model of Electric Shock Signals
    Power system technology, 2013
    Co-Authors: Shao Limin
    Abstract:

    In allusion to the difficulty of how to detecting the moment when Electric Shock occurs and distinguish the current signal passing through Electric Shock branch in human-body from the total leakage current in the residual current protection and action technology for future low voltage power network,combining intelligent processing technique for digital signal with combined neural network with adaptivity and optimal approximation property an automatic detection method for Electric Shock signal is proposed.Based on the wavelet de-noising for original total leakage current signal in low voltage power network the automatic detection of the moment when Electric Shock occurs as well as the decision-making of classification and attribution of Electric Shock failure patterns are first realized,meanwhile the waveform and amplitude of Electric Shock current are extracted from total leakage current.Simulation experiments show that the proposed method is feasible,rapid,valid and stable;the accuracy rate of pattern classification by the proposed method is 100%;the average relative error between the extracted amplitude and actual value is 3.65%.