Name: Technical Standards for Public Exposure from National Electrical Power Authority ENRE "Manual de Gestión Ambiental del Sistema de Transporte Eléctrico de Extra Alta Tensión""
Publication date: 1998 
Link: http://infoleg.mecon.gov.ar/infolegInternet/anexos/45000-49999/49781/norma.htm
Notes: Mandatory at National Level. Controlled by National Electrical Power Authority ENRE. 

Name: Standards on Low Frequency - fields for E (in kV/m) at 50 Hz "Especificaciones técnicas sobre ergonomía y levantamiento manual de cargas, y sobre radiaciones"
Publication date: 2003
Link: http://infoleg.mecon.gov.ar/infolegInternet/anexos/90000-94999/90396/norma.htm