Showing papers by "Michele Pastorelli published in 2007"
01 Dec 2007
TL;DR: In this article, the ELF magnetic fields, as produced by the user's own equipment and by other units eventually present in the vicinity, were evaluated by evaluating their potential adverse health effects, as well as sensitive electronic equipment disturbances.
Abstract: Modern residential, industrial or commercial buildings may be grounded through a system defined as "TN- Island grounding system". This is an effective way to protect both persons from shock hazard in installations and to greatly limit electrical interferences among power systems. This earthing system, which is aimed to promote electrical safety, better functionality, and lower costs, utilizes single-phase separation transformers installed in the unit grounded at the mid-point of their secondary side. By introducing a new source of power frequency (i.e. extremely low frequency) magnetic fields into the premises, the presence of such additional pieces of equipment in the environment, might expose persons to their potential adverse health effects, as well as, sensitive electronic equipment disturbances. This paper seeks to clarify this matter by evaluating the ELF magnetic fields, as produced by the user's own equipment and by other units eventually present in the vicinity.
1 citations
01 Jan 2007
TL;DR: In this article, the authors evaluate theELF magnetic fields, as produced by the user's own equipment and by other units eventually present inthevicinity, and they conclude that the presence of such additional pieces of equipment intheenvironment, might expose persons to their potential adverse health effects, as well as, sensitive electronic equipment disturbances.
Abstract: Modernresidential, industrial or commercial buildings maybegrounded through asystemdefined as"TN- Island grounding system". Thisisaneffective waytoprotect bothpersons fromshockhazardininstallations andtogreatly limit electrical interferences amongpowersystems. Thisearthing system, whichisaimedtopromoteelectrical safety, better functionality, andlowercosts, utilizes single-phase separation transformers installed intheunitgrounded atthe mid-point oftheir secondary side. Byintroducing anewsource ofpowerfrequency (i.e. extremely lowfrequency) magnetic fields into thepremises, thepresence ofsuchadditional pieces of equipment intheenvironment, mightexposepersons totheir potential adverse health effects, aswellas,sensitive electronic equipment disturbances. Thispaperseeks toclarify this matterbyevaluating theELF magnetic fields, asproduced bytheuser's ownequipment and byother units eventually present inthevicinity. Indexterms-Grounding, Transformer, ELFmagnetic field.