Re: FRC Clothing per NEC
What Don is describing is for Hazard Risk Catagory 0.
Examples of work that is permitted in a 240 volt panelboard are:
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- <font size="2" face="Verdana, Helvetica, sans-serif">Circuit breaker (CB) or fused switch operation with covers on</font>
- <font size="2" face="Verdana, Helvetica, sans-serif">CB or fused switch operation with covers off</font>
- <font size="2" face="Verdana, Helvetica, sans-serif">Opening hinged covers (to expose bare, energized parts)</font>
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Examples of work that is permitted in a 480 volt panelboard are:
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- <font size="2" face="Verdana, Helvetica, sans-serif">CB or fused switch operation with covers on</font>
- <font size="2" face="Verdana, Helvetica, sans-serif">CB or fused switch or starter operation with enclosure doors closed</font>
- <font size="2" face="Verdana, Helvetica, sans-serif">Reading a panel meter while operating a meter switch</font>
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Doing any other "hot" work requires more PPE as follows:
Determining PPE Selection Using Hazard Risk Categories or Tables
0 Untreated cotton and safety glasses
1 FR shirt plus FR pants or Regular weight (minimum 12 oz/yd2 fabric weight), untreated, denim cotton blue jeans are acceptable in lieu of FR pants and safety glasses.
2 Cotton underwear plus FR shirt & FR pants. If the FR pants have a minimum ATPV of 8, long pants of untreated natural fiber are not required beneath the FR pants, hard hat, safety glasses or safety goggles, leather gloves, and leather work shoes. A double-layer switching hood and hearing protection are required for the tasks designated 2* in Table 3-3.9.1 of Part II.
3 Cotton underwear plus FR shirt & FR pants plus FR coverall. Alternate is to use two sets of FR coveralls (each with a minimum ATPV of 5) over untreated natural fiber clothing, instead of FR coveralls over FR shirt and FR pants over untreated natural fiber clothing. Hard hat / FR hard hat liner, safety glasses or safety goggles, face protection with a double layer switching hood, hearing protection, leather gloves, and leather work shoes.
4 Cotton underwear plus FR shirt & FR pants plus flash suit jacket and pants 2 layer. Hard hat / FR hard hat liner, safety glasses or safety goggles, face protection with a double layer switching hood, hearing protection, leather gloves, and leather work shoes.