Portuguese to English Tech/Engineering Electronics / Elect Eng

There are several references in the Kudoz archives to various types of "quadro" in the context of electrical wiring, but no mention (yet) of a "quadro parcial". I assume that it is a smaller type of electrical (switch)board than a "quadro geral". As far as I can tell from my Google searches, the literal translation ("partial board") is not correct. Does anyone know the correct English term?

Example sentence: "Os condutores que alimentam o quadro parcial do Anexo estão emendados ao longo do troço."

And another: "No quadro parcial existe barramento de neutros, mas não existe barramento de terras."