X10 Community Forum

💬General Category => General Discussion => Topic started by: dhouston on September 01, 2014, 10:16:14 AM

Title: Future ain't what it used to be
Post by: dhouston on September 01, 2014, 10:16:14 AM
I suspect many here will find this of interest.

And, here is another life lesson on avoiding clouds and staying keeping on the sunny side.
Title: Re: Future ain't what it used to be
Post by: dave w on September 01, 2014, 01:33:23 PM
WOW! Whoda thunk these photo drop boxes could be anything less than safe and secure?  :'
Title: Re: Future ain't what it used to be
Post by: HA Dave on September 08, 2014, 01:14:28 AM
Everything that can be owned.... can (and will) be stolen.

If you count every grain of sand.... on every beach in the world... you are certainly Civil Service. Joking aside the government has experimented with various smart building technologies for many years (I used to work for the government). A lot of really effective ideas... have been around for decades.

Restroom lights were all on motion sensors. I like motion sensors at home too.

Instead of lighting an entire room to comfortable levels... keep rooms on the dark side other than natural light. Then use "task lighting" in individual private/work areas. Using this strategy (and CFL and LED lights) I can light my home at night rarely exceeding 60 watts of lighting electric.

   
Title: Re: Future ain't what it used to be
Post by: dhouston on September 08, 2014, 12:00:57 PM
It was both surprising and worrisome to read about the IoT installation.

Surprising because we usually read about how outdated the government is when it comes to computer networks and IT.

Worrisome because of...
Title: Re: Future ain't what it used to be
Post by: dhouston on September 08, 2014, 01:05:52 PM
Quote from: HA Dave on September 08, 2014, 01:14:28 AM
...I like motion sensors at home too.

Instead of lighting an entire room to comfortable levels... keep rooms on the dark side other than natural light. Then use "task lighting" in individual private/work areas. Using this strategy (and CFL and LED lights) I can light my home at night rarely exceeding 60 watts of lighting electric.

If you have frequent switching, whether manual or from motion sensors, you need to consider that CFLs and LEDs can have very high inrush currents, several times what you see with a 60W incandescent.
Title: Re: Future ain't what it used to be
Post by: Brian H on September 08, 2014, 03:07:32 PM
Some LED bulb manufacturers actually have a value you can use when adding up loads on a dimmer. Though I have never seen it on the box but burred on the specification sheet.
I have seen one LSG LED Bulb say count each one as a 80 watt bulb when calculating total wattage on a dimmer.
For Inrush and Repetitive Currents.
Title: Re: Future ain't what it used to be
Post by: HA Dave on September 08, 2014, 11:30:47 PM
Quote from: HA Dave on September 08, 2014, 01:14:28 AM
...I like motion sensors at home too.


Quote from: dhouston on September 08, 2014, 01:05:52 PM
If you have frequent switching, whether manual or from motion sensors, you need to consider that CFLs and LEDs can have very high inrush currents, several times what you see with a 60W incandescent.

True... but even with increased starting levels it is easy to recoup saving. You can do the math.

In my case... I like the safety, security, convenience. Motion sensors in the garage, and laundry room.... because I've never seen my wife walk into ether areas when her arms were empty. Why bother with a switch too. My homes perimeter has motion sensors... for both safety and security.   
Title: Re: Future ain't what it used to be
Post by: dhouston on September 09, 2014, 06:59:30 AM
Quote from: HA Dave on September 08, 2014, 11:30:47 PM
True... but even with increased starting levels it is easy to recoup saving. You can do the math.

It's not as much a matter of cost as it is of safety.  A web search using cfl led inrush will turn up many interesting articles. Here's an example.