Talk:Twenty second pulse
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Can we get any references or external links about this? Slugbug 20:14, 28 August 2005 (UTC)
[edit] Causes
What is the cause? "[S]witching actions in the high voltage grid" or "heating burners switching on and off"? —The preceding unsigned comment was added by Whitepaw (talk • contribs) 20:10, 27 March 2007 (UTC). (Darn that bot is fast!--Whitepaw 20:12, 27 March 2007 (UTC))