Here is the OSHA Standard: http://www.osha.gov/pls/oshaweb/owa...ANDARDS&p_i d=9868#1910.269(l)(1)(i)

Here are some OSHA interpretations: http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=INTERPRE TATIONS&p_id=23893 .

It seems that this is for systems over 600V. Does such a standard exist for "low" voltage?

[This message has been edited by ThinkGood (edited 08-09-2003).]