Inspector Gadget
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Current Canadian electrical code requires various bits of off-grid gear to be UL9540 compliant.
I had known that the Canadian electrical codes as our province has adopted required batteries of all kinds to be stored in a separate building from a dwelling unit, and I advised clients of this (in the "I ain't the electrical inspector, but as I understand it, this is what's required, talk to your contractor" tone) but the application of UL9540 was new to me.
As I understand it, the current UL9540 requires batteries to be tested in conjunction with other assemblies. LiFePO4 battery? It needs to be UL9540a, but that test requires it to be interlinked with a UL9540 charge controller and inverter, and all three tested in unison (as I understand it.)
Again, as I understand it, the previous (2016)?) UL9540 only required the battery to be UL9540a, with the attendant bits to be UL1741 compliant.)
So, in the process of digging into all of this, I haven't actually seen a lot of gear that's tested as integrated with UL9540. In fact, I think I've only seen maybe two-three totally integrated systems available.
How many of you electrical inspectors have seen UL9540 integrated systems? I'm interested in gaining some knowledge because as the local "off-grid" inspector, I am generally the person clients speak to about "what do I have to do to go off-grid" and I like being able to provide reasonably accurate information.
I had known that the Canadian electrical codes as our province has adopted required batteries of all kinds to be stored in a separate building from a dwelling unit, and I advised clients of this (in the "I ain't the electrical inspector, but as I understand it, this is what's required, talk to your contractor" tone) but the application of UL9540 was new to me.
As I understand it, the current UL9540 requires batteries to be tested in conjunction with other assemblies. LiFePO4 battery? It needs to be UL9540a, but that test requires it to be interlinked with a UL9540 charge controller and inverter, and all three tested in unison (as I understand it.)
Again, as I understand it, the previous (2016)?) UL9540 only required the battery to be UL9540a, with the attendant bits to be UL1741 compliant.)
So, in the process of digging into all of this, I haven't actually seen a lot of gear that's tested as integrated with UL9540. In fact, I think I've only seen maybe two-three totally integrated systems available.
How many of you electrical inspectors have seen UL9540 integrated systems? I'm interested in gaining some knowledge because as the local "off-grid" inspector, I am generally the person clients speak to about "what do I have to do to go off-grid" and I like being able to provide reasonably accurate information.