Electrical hazard and Arc Flash Mitigation

Article 80 of D.Lgs 81/08 and the methodology of NFPA 70E and the IEEE 1584 algorithm

GT Engineering performs analyses of Electrical Hazard based on what is required by the Article 80 of D.Lgs 81/08. We consider both the hazard of direct and indirect contacts and the arc flash hazard, using the methodology of NFPA 70E and the IEEE 1584 algorithm.

Arc Flash
  Circuit breakers are meant to protect the circuit from overcurrents, which can be divided in two categories: overload, i.e. ...
Arc Flash
  THE DOUBT Can the machinery manufacturer require the user to install a Fuse or a Circuit Breaker to protect its Electrical Equ...
Arc Flash
  THE DOUBT In the design of the electrical system, how can I distinguish which of the metal parts is an exposed conductive part?...
Arc Flash
THE QUESTION On the electrical standard, we often read that the assemblies and/or the electrical equipments in general shall provi...
Arc Flash
  DOUBT We know that high and low sensitivity Residual Current Devices (RCDs) are divided according to the current IΔn (nominal ...
Arc Flash
  THE DOUBT What are the differences between RCDs and Type G Ground Fault Protections?   CONSIDERATIONS Among possible causes o...
Arc Flash
Two main International Standards supports the use of “Zero Energy” to reduce hazards in Machineries: ISO 14118: Safety of machiner...
Arc Flash
The Earth Fault Loop includes the Load, the bonding conductor, the earthed (Grounded) neutral point of the tranformer, the source ...
Arc Flash
Overload relays typically operate on an inverse time curve where the tripping time becomes less as the current increases. They are...
Arc Flash
A GFCI (Ground Fault Circuit Interrupter) is the American equivalent of the High Sensitivity Differential protection or "Salva Vit...
Arc Flash
BS 7671: 2008 is the National Standard for most electrical installation work undertaken in the United Kingdom. It is also adopted ...
Arc Flash
Many existing and new industrial facilities include multiple generators operating on plant distribution buses at the medium-voltag...
Arc Flash
Currently the NEC in Article 100 defines the terms "ground" or "grounded" as "connected to the earth or to some conducting body th...