<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> Jessica,   I believe the purpose of having a fuse in the plug is for protection.  If the wheels roll over the cord, and a short is created, the small fuse in the plug will blow.  If you install an extension cord after the fused plug, you are completely defeating the protection. I think your advice is very bad. Their may be problems with the fused plug, but adding and extension cord is not the answer. Perhaps a fused extension cord would provide protection.   Jerry Cohen, RPT NJ Chapter     -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Jessica Masse Sent: Friday, October 17, 2008 9:17 AM To: pianotech@ptg.org Subject: Dampp-chaser plugs and systems     Hi, I am writing this in support of the Dampp-chaser climate control systems.  There have been many improvements on the systems and they work provided the owner of the piano gets the instructions correct.   I have found that in general it’s better to say less to minimize any confusion and ensure the owner to make a call when they have questions.    The only real problems I have found come from the system being powered off usually unintentionally or temporarily and then they forgot to plug it back in.  The system could use a no power (battery-backed alarm) because the standing water in the humidifier can be very damaging.   The other thing is the power cords get run over in public places which can be very dangerous and the reason I am writing this.   When the systems are installed where the piano is going to be moved, install the systems cord tied to the inside of the bottom of the rim and then add an extension cord.  Let them run over the extension cord.    I just looked at a fused plug that was run over- probably crushed and was straightened and plugged back in.  The fuse door was damaged and now the plug is cracked and exposing the inside of the plugs prongs.  This is potentially very dangerous. (Except the good spare fuse is working).  I just wrote a letter to the school telling them to remove the water from the tank and unplug the system.  Now I am looking for a solution to this new problem without changing the new safety standard of the improved system.  The plug needs to be replaced or the Humidistat needs replacing.   Jessica Masse RPT Piano Technicians Guild Proprietor, Ebony and Ivory Piano Company   </div> </body> </html>