A Spanish electrician (or an electrical-engineering student preparing the *Esquema Unifilar* for a course or permit) documents the *Cuadro General de Mando y Protección* (CGMP) of a single-family home. Spain's *Reglamento Electrotécnico para Baja Tensión* (REBT) §ITC-BT-17 is explicit about what the residential single-line must show: the incoming *acometida*, the utility-owned *Interruptor de Control de Potencia* (ICP) inside the meter cabinet, the consumer-owned *Interruptor General Automático* (IGA), one or more residual-current devices (*Diferenciales*), and a per-circuit *Pequeño Interruptor Automático* (PIA / MCB) for every final circuit — typically C1 through C6 in a basic *grado de electrificación básica* dwelling. The same pattern applies across Latin America (ABNT NBR 5410 in Brazil, NMX-J-098 in Mexico) and to most IEC-60364 jurisdictions, in contrast to NEC residential practice where the panel internals would normally live on a separate panel schedule.