240V Crk with one leg switched

[peter d]

Exactly and sometimes neither do I.

But I don't expect others to go beyond the NEC to protect me from my own choices.

Make sense?

If the argument is that we need to makes things safe to protect then unqualified, then yes, I am 100% opposed to that idea.

 

[iwire]

If the argument is that we need to makes things safe to protect then unqualified, then yes, I am 100% opposed to that idea.

That was my point.

Some have been arguing the current NEC rules of a controller not needing to switch all conductors is unsafe and we need to exceed those rules.

My point is the current rules are not unsafe if people know the rules. If they choose to ignore some of the rules that is on them if that results in them being injured. It is not on me for not going beyond the NEC.

Still making sense?


It seems strange to me that someone would go on at length about their plants safety rules yet apparently they must not be doing LOTO at the disconnecting means as required if this controller issue is dangerous.

 

[peter d]

That was my point.

Some have been arguing the current NEC rules of a controller not needing to switch all conductors is unsafe and we need to exceed those rules.

Those people need a good slap down from the Master of Electricity.

My point is the current rules are not unsafe if people know the rules. If they choose to ignore some of the rules that is on them if that results in them being injured. It is not on me for not going beyond the NEC.

Still making sense?

I have ranted against that very things many times over the years.

It seems strange to me that someone would go on at length about their plants safety rules yet apparently they must not be doing LOTO at the disconnecting means as required if this controller issue is dangerous.

Or they don't understand the difference between a controller and a disconnect.

 

[romex jockey]

Why do you see this as unsafe? The controller is not the disco.

Most the 240V appliances in your house are wired this way ie stove, dryer, HVAC, etc.

Only because the homeowner DIYer doesn't realize this Mr Jumper

~RJ~

 

[kwired]

Only because the homeowner DIYer doesn't realize this Mr Jumper

~RJ~

I'd like to say to them, enter at your own risk. A lot of the equipment in question will have warning labels to turn the power off, many even will state to turn off the "main supply" in one way or another.

Let's go in a slightly different direction and compare this to pneumatic, hydraulic, steam powered items. It is still generally only acceptable to operate on equipment supplied by those sources of energy after isolating from the main supply and verification that the potential energy has been removed, including energy stored in the component to be worked on.

 

[jap]

Take the human aspect completely out of this and anything thats energized is still more of a hazard than something that is not.

Yes we put things in place to remove power should something go wrong but that will never be safer than something that's not energized to begin with.


JAP>