Download - Lightning Protection Institute
Download - Lightning Protection Institute
Download - Lightning Protection Institute
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UL 1449-3 & 2008 NEC Art 285<br />
SPD Types: Types 1, 2, 3 & 4<br />
Based on Location within electrical distribution system<br />
(also coincides with ANSI/IEEE C62.41.2-2002 Categories C, B & A)<br />
Trans<br />
Meter<br />
Type 1<br />
Svc.<br />
Disc.<br />
OCP built in to<br />
SPD, more<br />
rigorous testing<br />
Panel<br />
10m (30feet)<br />
Type 2<br />
Type 3<br />
Copyright © 2009 Advanced <strong>Protection</strong> Technologies (800) 237-4567<br />
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