What Is a Dual Output Power Supply?

The dual power supply is of course drawn from two power sources (different in nature), and of course there are two feed lines; if one refers to a power supply, it means dual power supply.

The dual power supply wiring methods mainly include double radial, double trunk wiring and public backup trunk wiring.

1. When there is a power outage for some reason and power cannot be restored within a short period of time, a backup power source must be enabled.

step:

Cut off all circuit breakers (including

Dual power supply and

There are two types of dual power supply distribution networks: one is that the two power sources are on the same side of the power load, and the direction of their power output is the same on all branches; the other is that the two power sources are on both sides of the power load, and their The direction of power output is reversed on the corresponding branch. ^[2]

Dual power supply may be approved if one of the following conditions is met:

(1) Important party, government, and military agencies, national defense, and scientific research projects will cause serious consequences due to power outages.

(2) Important news, broadcasting centers, transportation and communication hubs, public utilities, and medical and health units will cause serious consequences due to power outages.

(3) Due to power outages, military units and factories will cause personal and equipment accidents, a large amount of raw materials will be lost, a large number of products will be scrapped, production will be suspended, and they will not be able to recover for a long time.

(4) Important public places.

(5) According to the characteristics of production, there are special requirements for the continuity of power supply. ^[3]