[C320-list] C320-list Digest, Vol 3401, Issue 1

Mon Feb 25 15:25:54 PST 2019

The need for fusing is debatable. Yes, I’m aware ABYC requires them.
I’m not convinced.

On Mon, Feb 25, 2019 at 3:01 PM <c320-list-request at lists.catalina320.com>
wrote:

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> Today's Topics:
>
>    1. Battery Cable fusing question/conffirmation (Scott Westwood)
>    2. Re: Battery Cable fusing question/conffirmation (jackbrennan)
>    3. Re: Battery Cable fusing question/conffirmation (Mark Cole)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 25 Feb 2019 15:50:23 +0000 (UTC)
> From: Scott Westwood <scottwestwood at bellsouth.net>
> To: Catalina List <c320-list at catalina320.com>
> Subject: [C320-list] Battery Cable fusing question/conffirmation
> Message-ID: <2109276421.4697498.1551109823927 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> I noticed that my Battery cables are/were not fused. At all.? I am talking
> about the 1/0 wires from Batt 1 and Batt 2 to the Batt switch and then from
> Batt? Switch Common to the Starter.?
> That is a straight shot without any fusing.? I noticed that some people
> have inserted some fusing.? I, however, see some people's schematics with
> 200amp and some with 300 amp.? (One had 200amp on the Batt side and 300amp
> on the Comm-Starter side???? ?Even if both Batteries shorted at the switch
> at the same time the 300 amp fuse could be too high??? That could be the
> reason for the 300 amp fuse on the common?? I wonder what the amp capacity
> is of my Batt Switch??
> Anyway....
> ?If I read some documents right the ampacity for 1/0 (AWG) is 285 and 4awg
> is 160.? I would assume that 200 and 100 (respectively) is good enough
> fusing when protecting just the wire in our setup?? I doubt anything would
> draw that much?
> ?I am thinking of adding 200 amp fusing on my 1/0 wires and 100amp on any
> 4awg??
> Any thoughts out there? Overkill?
>
>
>
>
>
> Thanks,
>
>
>
>
> Scott Westwood?scottwestwood at bellsouth.net H (919)-362-8538??? C
> (919)-618-7185
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 25 Feb 2019 15:56:31 +0000 (UTC)
> From: jackbrennan <jackbrennan at bellsouth.net>
> To: "C320-List at Catalina320.com" <C320-List at Catalina320.com>
> Subject: Re: [C320-list] Battery Cable fusing question/conffirmation
> Message-ID: <205167362.4847244.1551110191194 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> Hi Scott:
> A simple job. You can buy battery post fuses and install them in a few
> minutes.
> I believe my fuses are 200 amps, but I can't check because I am skiing in
> Colorado right now.
> The fuses are an excellent check against battery fires.
> Jack BrennanSonas, 1998 Catalina 320Tierra Verde, Fl.Dolphin Cruising Club
> of Tampa Bay
>
>
>
> Sent from Yahoo Mail on Android
>
>   On Mon, Feb 25, 2019 at 8:50 AM, Scott Westwood<
> scottwestwood at bellsouth.net> wrote:   I noticed that my Battery cables
> are/were not fused. At all.? I am talking about the 1/0 wires from Batt 1
> and Batt 2 to the Batt switch and then from Batt? Switch Common to the
> Starter.?
> That is a straight shot without any fusing.? I noticed that some people
> have inserted some fusing.? I, however, see some people's schematics with
> 200amp and some with 300 amp.? (One had 200amp on the Batt side and 300amp
> on the Comm-Starter side???? ?Even if both Batteries shorted at the switch
> at the same time the 300 amp fuse could be too high??? That could be the
> reason for the 300 amp fuse on the common?? I wonder what the amp capacity
> is of my Batt Switch??
> Anyway....
> ?If I read some documents right the ampacity for 1/0 (AWG) is 285 and 4awg
> is 160.? I would assume that 200 and 100 (respectively) is good enough
> fusing when protecting just the wire in our setup?? I doubt anything would
> draw that much?
> ?I am thinking of adding 200 amp fusing on my 1/0 wires and 100amp on any
> 4awg??
> Any thoughts out there? Overkill?
>
>
>
>
>
> Thanks,
>
>
>
>
> Scott Westwood?scottwestwood at bellsouth.net H (919)-362-8538??? C
> (919)-618-7185
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 25 Feb 2019 10:31:25 -0800
> From: Mark Cole <boatnboot at me.com>
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Battery Cable fusing question/conffirmation
> Message-ID: <78241262-442D-4FD8-8B1F-02A9792E4559 at me.com>
> Content-Type: text/plain;       charset=utf-8
>
> Hi, Scott;
>
> I redid my battery system in the spring of 2017 and added fuses just
> upstream of each battery bank and the battery charger.  I went with Blue
> Seas ANL fuses and fuse blocks.  The fuse blocks are $21.15 at Fisheries
> Supply and come with a cover.  My notes say to size the fuse to the amp
> capacity of the cable being protected, so the #8 wire from the charger got
> a 35A fuse and the battery banks got 150A fuses.  Both the 35A and the 150A
> were $18.20.  Everything has worked so far?
>
> Hope this helps,
>
> Mark Cole
> Fiddler?s Green #8
>
>
> > On Feb 25, 2019, at 7:56 AM, jackbrennan <jackbrennan at bellsouth.net>
> wrote:
> >
> > Hi Scott:
> > A simple job. You can buy battery post fuses and install them in a few
> minutes.
> > I believe my fuses are 200 amps, but I can't check because I am skiing
> in Colorado right now.
> > The fuses are an excellent check against battery fires.
> > Jack BrennanSonas, 1998 Catalina 320Tierra Verde, Fl.Dolphin Cruising
> Club of Tampa Bay
> >
> >
> >
> > Sent from Yahoo Mail on Android
> >
> >  On Mon, Feb 25, 2019 at 8:50 AM, Scott Westwood<
> scottwestwood at bellsouth.net> wrote:   I noticed that my Battery cables
> are/were not fused. At all.  I am talking about the 1/0 wires from Batt 1
> and Batt 2 to the Batt switch and then from Batt  Switch Common to the
> Starter.
> > That is a straight shot without any fusing.  I noticed that some people
> have inserted some fusing.  I, however, see some people's schematics with
> 200amp and some with 300 amp.  (One had 200amp on the Batt side and 300amp
> on the Comm-Starter side???   Even if both Batteries shorted at the switch
> at the same time the 300 amp fuse could be too high??  That could be the
> reason for the 300 amp fuse on the common?  I wonder what the amp capacity
> is of my Batt Switch??
> > Anyway....
> >  If I read some documents right the ampacity for 1/0 (AWG) is 285 and
> 4awg is 160.  I would assume that 200 and 100 (respectively) is good enough
> fusing when protecting just the wire in our setup?  I doubt anything would
> draw that much?
> >  I am thinking of adding 200 amp fusing on my 1/0 wires and 100amp on
> any 4awg??
> > Any thoughts out there? Overkill?
> >
> >
> >
> >
> >
> > Thanks,
> >
> >
> >
> >
> > Scott Westwood scottwestwood at bellsouth.net H (919)-362-8538    C
> (919)-618-7185
>
>
>
> End of C320-list Digest, Vol 3401, Issue 1
> ******************************************
>