At one time, the National Electrical Code (NEC) contained two Articles you won’t find as of the 2020 revision: Art. 280 (surge arrestors) and Art. 285 (transient voltage surge suppressors or TVSS).
Article 240 provides the general requirements for overcurrent protection and overcurrent protective devices (OCPDs). The job of an OCPD is to open the circuit if the current reaches a value that may ...
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