You might try searching under intrinsic safety.

----- Original Message ----- 
From: "alan smith" <micro_eng2@yahoo.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Tuesday, February 27, 2007 5:13 PM
Subject: [EE] NEC code reference for 70V audio


>I know there are a few audio guys on the list.  I'm looking for the section 
>in the NEC code that deals with 70V audio, anyone know?
>
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