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AuthorMessage
cisco1
cisco1

Posted: Mon Jun 16, 2014 9:11pm

Post Subject: welding

when welding anodes on a boat do you need to disconnect the batteries' as I was taught to do as a coach builder

Tony-B
Tony-B

Posted: Tue Jun 17, 2014 6:30am

Post Subject: welding

There have always been questions over the validity of this advice. Lucas said that the common use of electric welding on cars came in at a similar time to the change from positive to negative earthed electrical systems and in those days we had both types of alternators. Lucas felt the damage caused to the alternator electronics was more likely to be people reverse connecting batteries on negative earth cars. However as long as you turn the master switch off and have no shore lien connected I do not see how electric welding can do any damage, but I suppose better safe than sorry. Tony Brooks

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