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NOTE: This is an unformatted excerpt from our online fire protection training library.

Special Equipment

Summary

Summary

Requirements for arc welders (Article 630) must take into account noncontinuous duty cycles and inrush current when the welder is started – which affect conductor ampacity and overcurrent protection – and grounding of the secondary circuit. Article 645, which addresses information technology equipment rooms, provides alternative wiring methods and conditions that must be met in order to use those alternative methods. Article 680 covers swimming pools, fountains and similar installations.  This article addresses shock hazard by providing equipotential bonding and by locating metal equipment and electrical equipment away from pool areas as much as possible. Fire pumps (Article 695) are also addressed by NFPA 20 and NEC Article 430. Fire pumps require extremely reliable power sources, so this article addresses power continuity, wiring and voltage drop.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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