Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-14-2021, 08:46 PM   #1
Senior Member
 
slowandsteady's Avatar
 
City: North Kingstown, RI
Vessel Model: Mainship 34 III
Join Date: Jul 2013
Posts: 178
Grounding Solar

Do I need to ground the solar panel frames to the engine block?
There is a ground screw on the Victron MPPT charge controller, I assume I ground that to the engine block as well.
In the disconnect box between the panels and the controller, there is a ground lug. Even though there is just a pos. and a neg. running to the disconnect, do I have to ground the box as well? Can I run a wire from the panels, to the lug in the enclosure, to the MPPT and then the engine block?
So many questions....
slowandsteady is offline   Reply With Quote
Old 06-14-2021, 10:27 PM   #2
Ang
Veteran Member
 
Ang's Avatar
 
City: Port of Everett, WA
Vessel Name: Salish Star
Vessel Model: Nordic Tug 32
Join Date: Jul 2018
Posts: 39
When we installed our system the cable to connect to the panel included a ground wire. And we used it. Also grounded the MPPT box. in a Victron diagram it shows a protective device before and after the MPPT. Thought it might be overkill, but installed them none the less. Unfortunately, can't put my hands on the Victron installation diagram, but it's on their site.

One of the more challenging aspects of our install was getting the battery parameters in the Victron MPPT controllers to work with the Victron BVM battery monitor.

For what it's worth.
Ang is offline   Reply With Quote
Old 06-15-2021, 07:13 AM   #3
Guru
 
City: Rochester, NY
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 3,677
I didn't ground my panels when I installed them. But there's also no grounded metal within reach of the panels, so if the frames became hot somehow, it wouldn't present a shock risk except maybe if the boat were soaking wet with salt water.



The manual for the Victron 100/30s I'm using suggests grounding the solar panel frames for lightning protection. And it mentions that you can ground the chassis of the MPPT, but there's no terminal for it on the 100/30 and they don't show a chassis ground in the wiring diagram.
rslifkin is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 01:37 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012