answersLogoWhite

0


Best Answer

Mains switches should almost always be energized when lifted up and disconnected when down. This reduces the chances that something falling on the lever will accidentally energize the system.

User Avatar

Wiki User

17y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why main switches lift up and others down?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Why would the main safety go down every evening at exactly the same time?

not alot of info but do you have something on a timer that is coming on at that time what are you calling a main safety? Does your hot water tank start heating at that time? Safety switches will trip, when loads are switched on, if either the active or neutral connections are interconnected with unprotected circuits. Is your main breaker in a metal box on the outside of your house? On the west side? You come home and start using appliances, meanwhile the sun starts heating up that main breaker, and then it trips!


What is the main job that microorganisms do?

Break down dead organisms.


What is the main enzyme for breaking down glycogen?

Glucagon


Can ADHD be passed down genetic?

Yes, that is the main way that people get it.


Which main body system is responsible for breaking down food its energy?

The digestive system has primary responsibility for breaking down food.

Related questions

What is the function of an switch?

Auxiliary switches are separate switches with circuit which helps for the function of commutation of main switches of a converter.


What is the lift differential that exists between the advancing main rotor blade and the retreating main rotor blade known as?

Dissymmetry of Lift


Which networking device main purpose is to segment collision domains?

switches


What are the advantages of rolling luggage?

The main advantage of rolling luggage is that you don't have to lift your heavy bags everywhere. You can simply roll them to wherever you are going. You would only need to lift your bags when going up or down stairs.


The main rotor on a helicopter creates what?

the main rotor creates lift.


Why do your windows go down on your Toyota sepuoia when you lock the doors?

I believe when you have the windows locked from the main control (Driverside) Only the driver can lower the windows. If you try to lower them from the other switches if shout NOT allow the windows to move up or down.


What is the difference between a load break switch and an air break switch?

The main difference is that air break switches lack a mechanism for suppression and load break switches do have them. They are both disconnect switches but have different uses.


What are the main breast lift procedures?

There are some breast lift procedures available to those who want or need a breast lift. The main one is mastopexy which lifts the breasts and gives them a larger, fuller appearance.


What is the main purpose of SPST and DPST switches?

An SPST switch can break the connection or hold the connection depending on which switch your using.


can you lift up a vaneer that has fallen down?

Sulken Timothy P DDS can fix it 335 North Main Street, Fostoria, OH - (419) 435-6700


Why was a switch made?

A switches main purposes is to stop the current flow in a closed circuit.


Where is the fuse box location for 1994 previa?

The answer below was found on: http://toyotaownersclub.com/forums/index.php?showtopic=28761&mode=linear "on the previa, the main fuse box is located in the top of the dash board, the panel above the heater switches comes off to reveal it. There is a little level/clip just above the heater switches hidden by the curve of the panel, push and lift." Its right on top of the a/c swith Hidden