PV Systems: grounded / ungrounded / functionally grounded
In the past, inverters were commonly referred to as “grounded” because one of the DC current-carrying conductors was physically connected […]
Oregon LRT
July 2024
Oregon LRT
NEC 250, NEC 690 part 5
Grounding: connected to earth Bonding: things are connected together (doesn’t imply connection to earth) Article 250 – 10 parts; must
Oregon LRT
Maximum Heights
There are a few instances where maximum height rules comes into play when installing solar in Oregon. Disconnect Switch
Oregon LRT
UL 3141 standard
Currently as of April 2024 there is no formal UL listing for PCS, only a limited “certification requirement decision” but
Oregon LRT
Article 240 Overcurrent Protection
The requirements and purpose of overcurrent protection devices (OCPDs) for electrical circuits up to 1,000 volts, nominal. Here’s a breakdown
Oregon LRT
705.12(B)(3)(6): panelboards supplying feed-through conductors
size feed-through conductors as feeders per 705.12(B)(1) There are 2 choices: