Osha 1926

[Barry1]

NFPA70E vs. OSHA Does the 1926 standard mention MAD as it pertains to exposed live parts?

 

[zog]

NFPA70E vs. OSHA Does the 1926 standard mention MAD as it pertains to exposed live parts?

Yes. www.osha.gov

 

[Barry1]

Zog..I appreciate your reply but I am sure I can find the OSHA website on my own. I need for you to be more specific such as the specific standard because I cannot find MAD in the construction standards, however it is listed in the general industry. Thank you

 

[Chev]

Pardon my ignorance, but what is MAD?

 

[RETRAINDAILY]

Pardon my ignorance, but what is MAD?

Minimum Approach Distances

 

[ron]

The approach distances are shown in NFPA 70E. 70E is refered to by OSHA for enforcement.
70E has many references to approach boundaries. The table related to shock protection is:
Table 130.2(C) Approach Boundaries to Energized Electrical Conductors or Circuit Parts for Shock Protection

 

[richxtlc]

I don't think it is in 1926, but this is in 1910:

1910.333(c)(3)(ii)(C)

The person is insulated from all conductive objects at a potential different from that of the energized part.

TABLE S-5 - APPROACH DISTANCES FOR QUALIFIED
EMPLOYEES - ALTERNATING CURRENT

______________________________________________________________
|
Voltage range (phase to phase) | Minimum approach distance
__________________________________|___________________________
|
300V and less ....................| Avoid Contact
Over 300V, not over 750V .........| 1 ft. 0 in. (30.5 cm).
Over 750V, not over 2kV ..........| 1 ft. 6 in. (46 cm).
Over 2kV, not over 15kV ..........| 2 ft. 0 in. (61 cm).
Over 15kV, not over 37kV .........| 3 ft. 0 in. (91 cm).
Over 37kV, not over 87.5kV .......| 3 ft. 6 in. (107 cm).
Over 87.5kV, not over 121kV ......| 4 ft. 0 in. (122 cm).
Over 121kV, not over 140kV .......| 4 ft. 6 in. (137 cm).
__________________________________|___________________________

 

[pfalcon]

http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9870