Firewall electric services pass though query

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luscombe
Posts: 3
Joined: Thu Oct 16, 2014 9:17 pm

Firewall electric services pass though query

Post by luscombe » Mon Aug 24, 2020 10:20 pm

I am fitting the new firewall to a Jodel 1050 as part of a Rotax 914 installation. I am wondering if I should keep
certain types of electric cable separate from the others. For example,
should the ignition earth wires have their own pass though (even though
they will be shielded cables) or can they be grouped with the main power
cable to the bus bar. What about the MGL data wires - which I may
install in the future? I am wanting avoid interference
getting into the intercom system!
The original Continental O-200 set up was for magneto earth cables on one side and all the rest together through a different conduit.
Thanks
William
William Bliss
032727

tnowak
Posts: 505
Joined: Wed Jan 02, 2008 11:00 am

Re: Firewall electric services pass though query

Post by tnowak » Tue Aug 25, 2020 7:51 am

William,

Good electrical/electronic engineering practice would be to keep ignition wires separate from data and 12V power cables where ever possible.
Tony
Tony Nowak
008249

Leesr
Posts: 46
Joined: Thu Sep 25, 2008 12:04 pm

Re: Firewall electric services pass though query

Post by Leesr » Thu Aug 27, 2020 9:18 pm

Hello Luscombe,

Your post does beg the question as to why you are placing a Rotax in a French classic 1050?
Rob Lees
015666

mcfadyeanda
Posts: 67
Joined: Sun Jul 06, 2008 10:23 am

Re: Firewall electric services pass though query

Post by mcfadyeanda » Fri Aug 28, 2020 12:01 pm

But with a fairly obvious answer!
Duncan McFadyean
015318

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