Those look good. Where did you source them?Love these isolators. 1/4" mounting bolts.
OK, I get the Silicosis aspect. But, really? So, neither should you drill mounting holes in concrete basement walls or holes for conduit in concrete floors for fear of lung disease? We live in enough of a Prop 65 world already! Based on your 'outdoors is fine' suggestion, I suspect that you've never cut (sawed) very much fiber-cement siding. The dust can be overwhelming on both calm and breezy days. I use a fan or leaf blower to control it. Works wonders. (And, yes, I am familiar with the "shears" made for cutting the stuff but they fall a little short in some instances.)Not for internal use. The silica dust it emits is a huge HSF issue as if breathed in you will have long term repository issues. For outdoor use it's fine as wind/etc blows any dusting away. For cutting the use of a proper respirator is important.
OK, I get the Silicosis aspect. But, really? So, neither should you drill mounting holes in concrete basement walls or holes for conduit in concrete floors for fear of lung disease? We live in enough of a Prop 65 world already! Based on your 'outdoors is fine' suggestion, I suspect that you've never cut (sawed) very much fiber-cement siding. The dust can be overwhelming on both calm and breezy days. I use a fan or leaf blower to control it. Works wonders. (And, yes, I am familiar with the "shears" made for cutting the stuff but they fall a little short in some instances.)
As far as the material not being "structural" goes, I guess so. But, I think that would depend on the thickness, how well it was supported and the loads and bending moment applied. I'd likely trust it as an electrical insulator. Especially at these voltages.
I was thinking that PVC molding/boards might work pretty well. I haven't used PVC as an insulator (except in pipe form in various antennas) but I have fashioned some clamps to hold Romex (house wire) to a backboard. Sort of like a broad "comb" to position and hold the Romex in nice, neat runs. All you need is a table saw and a little patience. I suppose it could be used in a similar manner to organize DC cabling. Or, as a mounting surface for various items. Might not do so well in a fire but neither would a plywood battery box, etc. I tend to fuse conservatively and over-gauge to reduce the likelihood of fires. Heat is the enemy of most things electrical/electronic.
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I've re-sided 3 homes with Hardy Plank. And yes the dust gets everywhere. But you wear a proper respirator when cutting it, cut outdoors, use a proper chopper, and wipe down the cut boards with a tack cloth to get as much dust off before installing.
The safety sheets explain all this for a reason as the dust is extremely dangerous. This is not net-nannying or prop65 bullshit - you breath it and you will have lung problems.
Agreed.
In another thread I've posted that I would be reluctant to use the Hardie product if it's exposed to interior areas. I have used a lot of the Hardie Backer Board for tile jobs. I do not cut the panels indoors. I'll drill into it indoors, but I use a vacuum with a HEPA filter to gather up the dust. Even then, I'm wearing a breathing apparatus.
The Hardie boards are awesome. But only when used properly.
I was making a wry joke, my bad. It would be totally sufficient."Suffice" is not something I want to gamble my house on.