| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspection apparatus for electrical installation, ensuring simple hardware configuration and low cost.SOLUTION: An inspection apparatus 300 according to the present invention is an inspection apparatus 300 for electrical installation that includes high-voltage terminals of three phases, high voltages in three phases being input to the electrical installation from these high-voltage terminals, that includes low-voltage terminals of three phases, low voltages in three phases being output from these low-voltage terminals. The inspection apparatus 300 includes a phase-order detection circuit unit 320 including a normal-order-ON light-emitting diode 321 arranged in a first phase out of star-connected three phases and emitting light when a phase order is correct; and a reverse-order-ON light-emitting diode 322 arranged in a second phase other than the first phase out of the start-connected three phases, and emitting light when the phase order is reversed. |
