I guess I'll go back to being an amateur electrician! George Cone C&C40 BTV, VT
From: Della Barba, Joe via CnC-List <cnc-list@cnc-list.com> Sent: Tuesday, November 29, 2022 9:29 AM To: Stus-List <cnc-list@cnc-list.com> Cc: Della Barba, Joe <joe.della.ba...@ssa.gov> Subject: Stus-List Re: [EXTERNAL] Re: Marina/boatyard fires The missing neutral back on shore causes all the boats on 1 leg to be in series with all the boats on the other leg. If there are only two boats and each has a 1200 watt heater on, they will be fine. If one boat has a 1200 watt heater and one boat has a 120 watt lightbulb, the boat with the lightbulb will get most of the voltage. My calculations for that show the 120 volt lightbulb getting 218 volts. Joe Della Barba Sent: Tuesday, November 29, 2022 8:55 AM To: Stus-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Cc: George Cone <gc...@alpinesy.com<mailto:gc...@alpinesy.com>> Subject: [EXTERNAL] Stus-List Re: Marina/boatyard fires As an amateur electrician (boy, that should scare you), I don't understand why the failure of the neutral will cause a fire? Yes all 110 taps will be dead- correct?, and it is possible the 220 feeds will vary in voltage, but why a fire opportunity? George Cone C&C 40 Burlington, VT From: Joe Della Barba via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Sent: Tuesday, November 29, 2022 7:52 AM To: 'Stus-List' <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Cc: j...@dellabarba.com<mailto:j...@dellabarba.com> Subject: Stus-List Re: Marina/boatyard fires FYI: With the neutral feed disconnected, unless by random chance the loads on the two legs of the dock are equal, some boats will get a lot less than 120 volts and some a lot more. Joe Della Barba Coquina C&C 35 MK I Kent Island MD USA
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