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> DO NOT DO THIS! You're probably right, but just to rules lawyer this a bit for fun: Flexible cords and flexible cables shall be used only for th

by avar 2y ago

> DO NOT DO THIS! You're probably right, but just to rules lawyer this a bit for fun: Flexible cords and flexible cables shall be used only for the following: [...] (9) Connection of moving parts. He could mount his panels on plywood on caster wheels, and then prevent excess moment by tying those "moving parts" by chain to cinder blocks. The rules don't specify that you must have a reason that isn't dumb to make those parts move. The "400.12 Uses Not Permitted" section gives the list in "400.10" a blanket exemption ("unless specifically permitted in 400.10"), and that's the section that would forbid running the wires through a window.

millebe 2y ago
The rules specify equipment must be installed in a manner per its listing, and there are at least four nationwide codes that cover the attachment of solar panels. In California I would guess there are more, stricter codes (e.g. seismic). Even if you managed to make the panels movable, this would fail 690 of the NEC: 690.31 Wiring Methods (A) Wiring Systems All raceway and cable wiring methods included in this Code, other wiring systems and fittings specifically listed for use in PV arrays, and wiring as part of a listed system shall be permitted. Where wiring devices with integral enclosures are used, sufficient length of cable shall be provided to facilitate replacement. Where PV source and output circuits operating at voltages greater than 30 volts are installed in readily accessible locations, circuit conductors shall be guarded or installed in Type MC cable or in raceway. The ampacity of 105°C (221°F) and 125°C (257°F) conductors shall be permitted to be determined by Table 690.31(A)(b). For ambient temperatures greater than 30°C (86°F), the ampacities of these conductors shall be corrected in accordance with Table 690.31(A)(a).0
- avar 2y ago
  That entire section seems to hinge on a few conditions you might get out of. E.g. here the videos seems to show the maintenance access to a roof, is that a "readily accessible location"? Even if that's the case it seems you could circumvent the rest by using lower voltage coming from the panels into the house.

by avar 2y ago

millebe 2y ago

The rules specify equipment must be installed in a manner per its listing, and there are at least four nationwide codes that cover the attachment of solar panels. In California I would guess there are more, stricter codes (e.g. seismic). Even if you managed to make the panels movable, this would fail 690 of the NEC: 690.31 Wiring Methods (A) Wiring Systems All raceway and cable wiring methods included in this Code, other wiring systems and fittings specifically listed for use in PV arrays, and wiring as part of a listed system shall be permitted. Where wiring devices with integral enclosures are used, sufficient length of cable shall be provided to facilitate replacement. Where PV source and output circuits operating at voltages greater than 30 volts are installed in readily accessible locations, circuit conductors shall be guarded or installed in Type MC cable or in raceway. The ampacity of 105°C (221°F) and 125°C (257°F) conductors shall be permitted to be determined by Table 690.31(A)(b). For ambient temperatures greater than 30°C (86°F), the ampacities of these conductors shall be corrected in accordance with Table 690.31(A)(a).0

avar 2y ago
That entire section seems to hinge on a few conditions you might get out of. E.g. here the videos seems to show the maintenance access to a roof, is that a "readily accessible location"? Even if that's the case it seems you could circumvent the rest by using lower voltage coming from the panels into the house.