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Limited - Prohibited - Restricted calculations

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    Limited - Prohibited - Restricted calculations

    took neta 2 last year and didn't pass, saw a lot of safety questions and arc flash questions. anyone have calculations chart? or is there just a simple way to figure these out?
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    NFPA 70E Table 130.4 lists the approach boundaries to energized electrical conductors or circuit parts for shock protection for alternating current systems. http://www.depts.ttu.edu/opmanual/OP60.14D.pdf
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    thanks the table helps a lot!
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  6. #4
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    Good info. Here are the tables for those who cant access the link or want easy access on mobile.

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Name:	nfpa-70e-table-130-4.jpg 
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Size:	52.8 KB 
ID:	158

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Name:	nfpa-70e-table-130-4-2.jpg 
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Size:	52.0 KB 
ID:	159

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Name:	nfpa-70e-table-130-7.jpg 
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Size:	33.6 KB 
ID:	160
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    Quote Originally Posted by adamwilson View Post
    Good info. Here are the tables for those who cant access the link or want easy access on mobile.

    Click image for larger version. 

Name:	nfpa-70e-table-130-4.jpg 
Views:	12 
Size:	52.8 KB 
ID:	158

    Click image for larger version. 

Name:	nfpa-70e-table-130-4-2.jpg 
Views:	9 
Size:	52.0 KB 
ID:	159

    Click image for larger version. 

Name:	nfpa-70e-table-130-7.jpg 
Views:	10 
Size:	33.6 KB 
ID:	160
    Thank you
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  10. #6
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    Thanks. Good Info
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