H-M Platinum Supporter ($50)
- Mar 26, 2018
I can't argue with that. My shop has a continuous base load of about 240 watts, VFDs, battery chargers, computers, ect. But given that my monthly power usage averages about 2.5 megawatt hours, the shop base load is pretty much in the noise.Just my 2cents but I would think recommending to leave any piece of machinery ON unattended is the worst advice that can be given. First your powering electrical that consumes power that your wasting.
Can't argue with safety either. That is what latching stop buttons are for. They require that you twist and pull out before the green button is active. On my mill, a child would require a step ladder to get to the spindle controls, then twist and pull out the stop button before pressing the green button. On the lathe, it's a 3 step process to turn on the spindle. Twist and pull out the stop button, press the green control power button, then shift the apron control lever. Pretty hard to accidentally start either machine.Second and most importantly is safety. You should have access to complete shutdown within steps. What if you accidentally hit run while walking past with a flycutter installed and close to chuck or something sitting on chuck and shoots it. Or a child hits the green button and wham. lathe even worse with apron controls.
All for not adding a five dollar on /off switch
I have the same problem, happens all the time around here. Last month my high voltage was 370.24, don't know how long that lasted, but no equipment damaged. High voltage this month so far is 247.30I posted yesterday, but it seems the new server lost my post.
It seems I am the only person on the forum who does not have a reliable power supply, as in any day I can have a blip, more than one some days. I am on the edge of the utility company supply. These blips can and do create voltage spikes, similar to flipping a switch off, then on. A friend had his young child do this on a power strip. It broke his external storage device.
I disconnect my DRO's and any equipment with sensitive electronics which can potentially be damaged by power blips and voltage spikes. For my computers and home stereo, I have UPS.
One exception being the coffee maker. People always want to unplug that, other things can be kept plugged in.Okay, I'm going to pipe up on one thing. Stop and ask yourself one question!
"Do I have a disconnect switch on every powered device that has current applied when not in operation, but is running electronics for low level function ?"
This question applies to devices that lack a mechanical switch (vs. a relay), such as: microwave, alarm clock, television, refrigerator, washer/dryer, CPAP, cordless phone, garage door opener, thermostat, etc...
Barring those industrial level items that use 440V, all of the above work with 120-220VAC. Which will start a fire with just as much vigor as anything, in addition to being able to kill you dead if you mess with it in ways you shouldn't.
Stop and breathe, we live in a world where we are surrounded by electrons in a holding pattern waiting to do our bidding (Thank you Nikola Tesla!). Just because it is attached to a big hunk of iron does not inherently pose a greater risk than we unknowingly subject ourselves to in our homes. I fully agree that a master switch to kill main power to a given area is a wise thing, but the fact that a device has power present when in the OFF position is not grounds for fear.
now back to our normal HM programming.