Non-conductive, non-flammable busbar mounting board

[bluedog225]

I want to mount a couple of Victron Lynx busbars on top of my server rack battery racks. Part of my off-grid solar project. Per the title, I’m looking for a good mounting surface. A 2x6 would work fine but I’d prefer non-flammable.

I’ve got some scrap corian countertop but I don’t know the grade and don’t think it would do well when exposed to flame. I may go ahead and spend the money on glass reinforced polyester laminate (GPO-3). They sell “scraps” on eBay. But thought I’d check in here for other suggestions first.

Whatever I choose needs to have some structural integrity.

One other idea I had is to paint a 2x6 with intumescent paint. Wish that stuff were cheaper.

Thanks

 

[mm08822]

Look up the specs for FRP. - conductivity. Also need to make sure dirt, dust, moisture can't accumulate and cause leakage. Distance between terminals is very helpful.

Covering the busbars with shrink wrap will add additional safety.

 

[PCustoms]

I googled the busbar, aren't these fully enclosed in a plastic case?

 

[bluedog225]

Yes. I’m interested in keeping the fuel load down in the area of the batteries, inverters, and charge controllers.

 

[manwithtools]

Phenolic sheet, it's been used for decades for just this purpose.

 

[Firebrick43]

McMaster-Carr

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www.mcmaster.com

This is the stuff you want. Would be a good idea to mount five or six stand-offs, 4 in the corners and one or two in the middle and use an 1/8 piece of garolite to shied the top that can easily be removed with a few thumbs screws. It works easy with wood working tools. Just about all the industrial equipment I worked on used it to mount the main bus bars and fuses to inside the electrical cabinets.

 

[dcg9381]

Yes. I’m interested in keeping the fuel load down in the area of the batteries, inverters, and charge controllers.

How about using James Hardie? It's class-A fire rated. Cheap.

 

[bluedog225]

How about using James Hardie? It's class-A fire rated. Cheap.

if it’s the same stuff I’m thinking of, isn’t it pretty fragile?

 

[dcg9381]

if it’s the same stuff I’m thinking of, isn’t it pretty fragile?

It's not something you can mount to directly, but it'd make an excellent "fire cover" for a 2x6 or whatever is under it.

 

[KenC]

I once owned an old building, original electrical equipment circa 1916 was a panel with copper bolts/studs and knife switches, no overcurrent protection. All mounted a slate backing, about 16x24 and a little of an inch thick. There were no receptacles at all, just a lot of lighting.

I thought that slab of rock was really unique and wanted to save it for display, but dropped it. Shattered in a million pieces.

Kinda hard to find, but surely fireproof!