Hi Mark, Great to see that the extenders seem to have passed all the test with flying colours. Now how do I go about getting a set? Ken Goodhew. -----Original Message----- From: volt-nuts [mailto:volt-nuts-bounces@febo.com] On Behalf Of volt-nuts-request@febo.com Sent: Wednesday, November 19, 2014 4:00 AM To: volt-nuts@febo.com Subject: volt-nuts Digest, Vol 63, Issue 13 Today's Topics: 1. Fluke 5200a extender (Mark Sims) ---------------------------------------------------------------------- Message: 1 Date: Tue, 18 Nov 2014 00:44:22 +0000 From: Mark Sims <holrum@hotmail.com> To: "volt-nuts@febo.com" <volt-nuts@febo.com> Subject: [volt-nuts] Fluke 5200a extender Message-ID: <BLU170-W45CE8FE65C280657AFF814CE880@phx.gbl> Content-Type: text/plain; charset="iso-8859-1" I recently bought a small insulation tester DMM off of Ebay ($20, search for "bm500a insulation tester"). It can test at 250/500/1000V. I built up three of the 5200A extender cables and tested them. There were no problems at 1000V (even though the ribbon cables are only rated for 300V and there are some pretty tight clearances on the boards where etches are routed between pins of the ribbon cable headers). It looks like there should be no problem handling the max 190V potential difference between two adjacent pins on the 5200A bus. I tested the cables by shorting all the top side pins and shorting all the bottom side pins on an edge connector, hooking the completed extenders to that edge connector, and testing the resistance between the top side and bottom sides. That tests all the adjacent wires on the ribbons and the tight clearances. ------------------------------ Subject: Digest Footer _______________________________________________ volt-nuts mailing list volt-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts ------------------------------ End of volt-nuts Digest, Vol 63, Issue 13 *****************************************