RE: Toploads that bite

• To: tesla-at-pupman-dot-com
• Subject: RE: Toploads that bite
• From: "Herwig Roscher" <herwig.roscher-at-gmx.de> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Thu, 10 Feb 2000 18:22:09 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Ted Rosenberg wrote to the list:

> You suggest discharging the EMMC even with the use of 
10Mohms across each cap.

> Should I only use 4AWG or so with clamps to discharge or, due 
to some bleeding by the resistors, can I safely install a big amp 
carrying SPST switch...maybe spring loaded so I don't forget to 
open the short once discharged. Thoughts?

Ted,

As it comes to safety I don't trust "automatic" devices like spring 
loaded relays/switches. And I'm afraid of shorting caps with an 
unknown charge also.
You might want to include a safety gap (with a series resistor) in 
parallel to the cap.The series resistor is essential in order not to 
exceed the maximum current of the cap in case of a flashover. If 
you placed this safety gap so that you can access it easliy, it's a 
perfect means to discharge the cap as well: Put a piece of copper 
tube attached to an insulating handle across it and leave it there 
until you want to operate the system.

Safe coiling to you!

Regards			^Herwig

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