Alright, I don't know why I am feeling dumb about this. I recently had another post regarding a Transformer.
Article 240.21(C) tells me what I need for over current on the secondary side of a transformer, great, got it. Here is my question... I'm surveying a school, it has 3 transformers in a dedicated room with nothing but the transformers. Each is fed from circuit breakers in a 480V panel in the hallway outside of the room. Each transformer feeds a single panel with a main circuit breaker in a classroom. The means of OCP are the primary side breakers, and the secondary side main breakers on the panels. The secondary panels are much farther than 10ft or 25ft.
Should there be a disconnect (fused or unfused) within 10ft as per 240.21(C)(2) or because the conductors leave the room, the disconnect would fall under 240.21(C)(6)? or is the system kosher and I'm over thinking this?
Sometimes these codes make me feel like i'm trying to explain the laws for robotics from the movie I-Robot... "But not if it violates the first and second law"
Article 240.21(C) tells me what I need for over current on the secondary side of a transformer, great, got it. Here is my question... I'm surveying a school, it has 3 transformers in a dedicated room with nothing but the transformers. Each is fed from circuit breakers in a 480V panel in the hallway outside of the room. Each transformer feeds a single panel with a main circuit breaker in a classroom. The means of OCP are the primary side breakers, and the secondary side main breakers on the panels. The secondary panels are much farther than 10ft or 25ft.
Should there be a disconnect (fused or unfused) within 10ft as per 240.21(C)(2) or because the conductors leave the room, the disconnect would fall under 240.21(C)(6)? or is the system kosher and I'm over thinking this?
Sometimes these codes make me feel like i'm trying to explain the laws for robotics from the movie I-Robot... "But not if it violates the first and second law"
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