NFPA 70E QUESTIONS AND ANSWERS
Arrangementpoofpo70Epo-poanswers--Introductionpo(Articlepo90)
Chapterpo1poSafetypoRelatedpoWorkpoPractices
Chapterpo2poSafetypoRelatedpoMaintenancepoRequirements
Chapterpo3poSafetypoRequirementspoforpoSpecialpoEquipment
Annexespo(Articlepo350)
ArcpoFlashpoHazardpo-poanswers--
Apodangerouspoconditionpoassociatedpowithpothepopossibleporeleasepoofpoenergypocaused
pobypoanpoelectricpoarc
ArcpoRatingpo-poanswers--
Thepovaluepoattributedpotopomaterialspothatpodescribespotheirpoperformancepotopoexposur
epotopoanpoelectricalpoarcpodischarge.poThepoarcporatingpoispoexpressedpoinpocal/
cm^2poandpoispoderivedpofrompothepodeterminedpovaluepoofpothepoarcpothermalpoperforma
ncepovaluepo(ATPV)poorpoenergypoofpobreakopenpothresholdpo(EpoBT)po(shouldpoapomater
ialposystempoexhibitpoapobreakopenporesoponcepobelowpothepoAPTVpovalue).poArcporating
poisporeportedpoaspoeitherpoAPTVpoorpoEpobt,powhicheverpoispothepolowerpovalue.
Barricadepo-poanswers--Apophysicalpoobstructionposuchpoaspotapes,pocones,poorpoA-
frame-
typepowoodpoorpometalpostructurespointendedpotopoprovidepoapowarningpoandpotopolimitpoa
ccess.
Barrierpo-poanswers--
Apophysicalpoobstructionpothatpoispointendedpotopopreventpocontactpowithpoequipmentpoorp
oenergizedpoelectricalpoconductorspoandpocircuitpopartspoorpotopopreventpounauthorizedpoa
ccesspotopoapoworkpoarea.
Shockpoboundariespo-poanswers--Limitedpoapproachpoboundary,
Restrictedpoapproachpoboundary,
Prohibitedpoapproachpoboundarypo(notpoinpo2015)
Arrangementpoofpo70Epo-poanswers--Introductionpo(Articlepo90)
Chapterpo1poSafetypoRelatedpoWorkpoPractices
Chapterpo2poSafetypoRelatedpoMaintenancepoRequirements
Chapterpo3poSafetypoRequirementspoforpoSpecialpoEquipment
Annexespo(Articlepo350)
ArcpoFlashpoHazardpo-poanswers--
Apodangerouspoconditionpoassociatedpowithpothepopossibleporeleasepoofpoenergypocaused
pobypoanpoelectricpoarc
ArcpoRatingpo-poanswers--
Thepovaluepoattributedpotopomaterialspothatpodescribespotheirpoperformancepotopoexposur
epotopoanpoelectricalpoarcpodischarge.poThepoarcporatingpoispoexpressedpoinpocal/
cm^2poandpoispoderivedpofrompothepodeterminedpovaluepoofpothepoarcpothermalpoperforma
ncepovaluepo(ATPV)poorpoenergypoofpobreakopenpothresholdpo(EpoBT)po(shouldpoapomater
ialposystempoexhibitpoapobreakopenporesoponcepobelowpothepoAPTVpovalue).poArcporating
poisporeportedpoaspoeitherpoAPTVpoorpoEpobt,powhicheverpoispothepolowerpovalue.
Barricadepo-poanswers--Apophysicalpoobstructionposuchpoaspotapes,pocones,poorpoA-
frame-
typepowoodpoorpometalpostructurespointendedpotopoprovidepoapowarningpoandpotopolimitpoa
ccess.
Barrierpo-poanswers--
Apophysicalpoobstructionpothatpoispointendedpotopopreventpocontactpowithpoequipmentpoorp
oenergizedpoelectricalpoconductorspoandpocircuitpopartspoorpotopopreventpounauthorizedpoa
ccesspotopoapoworkpoarea.
Shockpoboundariespo-poanswers--Limitedpoapproachpoboundary,
Restrictedpoapproachpoboundary,
Prohibitedpoapproachpoboundarypo(notpoinpo2015)