[Design, NEC] Should I have an Optional Branch for my hospital to generator back up the Kitchen and all normal lighting, rather than putting it on the LS, Critical, or Equipment branch? Or can it go on the Equipment branch?

[Design, NEC] Should I have an Optional Branch for my hospital to generator back up the Kitchen and all normal lighting, rather than putting it on the LS, Critical, or Equipment branch? Or can it go on the Equipment branch?

I have a client who wants to back up the entire facility, on top of the typical Life Safety, Critical, and Equipment branches.

We're talking about kitchen loads, common receptacles for entertainment rooms, all lighting (rather than just the EM lighting).

Should all of these nonessential loads be on a fourth branch of the emergency system, the 'Optional' branch, or can all of these loads go on the least-important 'Equipment' branch of the emergency system?

Submitted August 31, 2016 at 04:23PM by Kirjath
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[Design, NEC] Should I have an Optional Branch for my hospital to generator back up the Kitchen and all normal lighting, rather than putting it on the LS, Critical, or Equipment branch? Or can it go on the Equipment branch?

could Traffic flow be improved by preventing unintentional brake light illumination?

could Traffic flow be improved by preventing unintentional brake light illumination?

I have been developing a hypotheses regarding traffic flow and mitigation and am hoping to get some input or even help running some simulations.

As everyone knows traffic can be very erratic and aggravating often coming to a complete stop for no good reason. I have a reasonable understanding of the principals and place most of the fault in the poor driver education/licensing in this country but realize that it cannot be completely avoided when dealing with so many variables. I do have an idea that I think could help.

What if brake lights were smarter? If the brake light were triggered based upon several factors like amount of brake application, speed of brake application, vehicle deceleration, etc. I believe it would allow people to make small changes in speed without freaking out the car behind and perpetuating the cycle. If people could regulate their speed to a certain degree without the brake lights illuminating I believe traffic flow could be improved. As it is the lights illuminate at the slightest brush of the pedal weather the car is slowing down or not, and many drivers rest a foot on the pedal and the lights are always on. I cant help but believe that this has a very negative effect on traffic flow.

This system would not delay the light if certain factors are met but could help avoid unintentional brake light illumination.

Please chime in, I would love to hear all sides. Whenever I have brought this up I am met with looks of disgust and consternation but I truly believe this could simple to implement and possibly have a positive effect on traffic flow if it were to become prevalent enough.

Submitted August 31, 2016 at 03:07PM by thedrue
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could Traffic flow be improved by preventing unintentional brake light illumination?

Let’s get real about CAD programs

Let’s get real about CAD programs

I'm doing a certificate program in CAD and have been learning AutoCAD, Inventor, and Revit. Are these useful programs to be knowledgeable in when looking for work in the field?

I just read a thread in the 'pirated photoshop' post where people were arguing the merits of these programs and I just want to be sure I'm not wasting my time by learning them in depth.

Submitted August 31, 2016 at 01:35PM by Ialreadyreddittwice
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Let’s get real about CAD programs