ARTICLE 280. SURGE ARRESTERS, OVER 1 KVARTICLE 280. SURGE ARRESTERS, OVER 1 KV280.1. Scope. This article provides rules and regulations covering the application of "surge arresters" or, as they are more commonly known, "lightning arresters." Here, as stated the Code provides general, installation, and connection requirements for lightning equipment and systems (Fig. 280-1). The major change as of the 2008 NEC is that this article now only applies to over 1 kV applications. All other applications at conventional utilization voltages have been transferred to Art. 285.
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. ARTICLE 280. SURGE ARRESTERS, OVER 1 KV, Chapter (McGraw-Hill Professional, 2017), AccessEngineering