12V/24V Device Voltage Drop & PSU Zoning

P132

Estimate devices per power zone from both minimum remote voltage and PSU-current constraints.

Parameters

Assumptions

  • 同一分区设备集中在输入的最远距离,按最不利同时工作电流计算。

Important notes

  • 星形/总线Cabling、支路长度、启动电流和实际导体温度需按现场逐路复核。

Standards and sources

Verified: 2026-09-05