Suspect the original theory on the ground based on getting shock risk from motor/ capacitor leakage (or even an old lamp bulb socket metal housing) to a motor housing that was NOT grounded, and then (someone) touching, being shocked....so in theory, if housing grounded, enough leakage would trip fuse/ breaker vs no trip of ungrounded. Since GFCI does NOT measure current through the GROUND wire (common misconception), Ground wire NOT required to trip from leakage.... GFCI simply looking for a DIFFERENCE/ DELTA between HOT and Neutral current in (micro?)/ milli-amps, a GFCI works well (trips when appropriate) w/ two-wire, like Xmas lighting. Hope this helps
TerryH
thenne1713@aol.com
thenne1713@aol.com
__._,_.___
Posted by: Terry Hennessy <thenne1713@aol.com>
| Reply via web post | • | Reply to sender | • | Reply to group | • | Start a New Topic | • | Messages in this topic (2) |
Please send decorating questions to Interior Motives List - to subscribe send an email to: Interior_Motives-subscribe@yahoogroups.com
.
__,_._,___
No comments:
Post a Comment