Recent content by spork

I found another article that may be of interest. Its highly detailed about surge damages to ethernet ports. Designing Ethernet Cable Ports to Withstand Lightning Surges a clip from the section on gpr "Ground Potential Rise When lightning strikes the ground, currents up to 100 kA flow...

here is a thread on cctvforum Lightning Protection - CCTV Forum This gentleman has installed cams that have taken direct hits. Also there are amateur radio operators that take direct hits on their antennas almost every storm that have never lost a modem etc. Whenever you read how its done...

my concern was lightning / surge currents finding a lower resistance path through your house wiring and electronics to another ground rod. All I was trying to say is that lightning can come from the other way and end up damaging more stuff. thanks for the nec codes.

So I guess my question is where in the code does it state that low voltage cables can enter from outside without being grounded? I would like a definitive answer myself on if its actually legal. Just trying to learn here... cable and satellite companies I think are required to use the service...

All cables entering the house are required by code to be bonded to a single point ground. Adding extra ground rods makes the problem worse if not bonded properly. If everything isn't at the same potential you are giving lightning another path causing more damage. I would guess the way most...

I think most pir's are meant to be mounted at least 7 feet. Did yours come with any other lenses that you cold try? Are you using wireless or hardwired sensors? A dual tec pir is about the only way I know of to cover a wide area with minimal false alarms which sounds like you've already tried...

not sure I mentioned it in my post but the newer six series, dsc neo, and elk sensors are all 2 way and encrypted. Basically they will wait for a confirmation from the panel rather than just a one shot deal. This should make them far more reliable than any other wireless system. They can even...

I wasn't aware they check in thanks for letting me know. I've had the honeywell 5800 series of sensors for a long time. Batteries last something like 7 years. With the envisalink module I have free self monitoring or I can get full service for something like 10 bucks a month. I also like to know...

Systems like simplisafe are mass market junk. afaik they are unsupervised sensors. In a pro system they have to check in every hour to make sure everything is working. With the lyric system you can use the Six series of sensors which should be even better because they are 2 way. IMO you would be...

I don't know if its been mentioned or not but the web viewer for BI actually works unlike most nvr's. You can make it even better with the ui2 viewer. I agree that Blue Iris is better in every way. That being said if not for BI there would be a lot more hardware nvr users around. I'm also at...

Packages suffer much worse inside a sorting hub. They are thrown together with furniture, tires, trampolines and anything else you can order online. All this stuff dumps over in transit or when being unloaded. If you get a package that looks like a accordion it was probably crushed on a sorting...

The nice thing with BI is you can setup different profiles for alerts so you can easily switch them off as needed from your phone. Its difficult to setup outdoor alerts without desensitizing yourself from false alarms. I always found the benefit of better motion detection is that I can review...

My thing is sometimes I think too far ahead. What works today may not work tomorrow. I like something to work officially and not worry about having to try and find a fix for it. Especially in a server type machine that I don't want to mess with once its going. I've done some more searching and...

Glad to hear its continued to work for you but some people still have trouble with this method. Here is just one post

I had my own thread here. Windows 10. Can updates be reliably disabled? It seems the supported way is to use the policy editor in 10 pro. Although I still found some reddit posts about this method failing as well. I was recently working on a BI machine and came back a few minutes later to the...