atcomsystems.ca/forum Forums VOIP Phones & IP PBX Networking Cabling myths

We appear to be overlooking a potentially life threatening situation in Rover88's case.The customer should have a copy of the cabling certification by the inspector, or is it only issued to the sparky?He should at least have the sparky's licence number.In Australia we have to issue a compliance notification to the customer whenever we work on their communications cabling.
(Normally added on the invoice-"we hereby certify all cabling complies with all relevant regulation etc")
We all have a responsibility to report substandard and in particular, DANGEROUS work practices.
What happens when moisture builds up in the conduit over time and one of your mates or you yourself have to work on the cable running in the conduit with power- and the insulation on the power cable has commenced to perish.

REPORT THE FAILURE TO COMPLY..AND THE INCOMPETENCE OF THE INSPECTOR!
How could you go and tell a staff members wife and family why he wasn't coming home.

Those that can't do inspect?????

The municipality in which the optometrist is located does not require contractors' license for low voltage, nor is low voltage inspected. As I've seen on several large construction sites, upon inspection the inspector is told "it's just phone wire" and he ignores it!

It does cancell out, the term is counter emf, BUT the down side is that the by-product is heat, alot of it!

whoops meant to add that due to the 3rd and 5th and 7th harmonics that are created by an inductive load is why you get the "noise" by ballast and motors, to eliminate you need to supersize the common, or add more capacitance to the circuit to rectify the power factor (which should be in the 90% range....

Oh just one more thing , how many of you are familier with the national electric code art 700 ? it is a leagal writ that has been adopted in All jourisditions (every three years and is inforceable by law) all states Legislature adopt this....

i'll use spell check from now on

50/60hz hum can cause a problem in some cases, but in digital it is not so much a problem.

I'd still stay as far away from mains as possible though. RFI issues from power DO exist...they are just very transparent.

Here's one.

That so and so company has certification on so and so cabling products, so they must know what they are doing. HAHA

Cabling certs are a joke, and merely a way for the cabling manufacture to convince company X that they should be using their product; with that we will waranty our product 25 years. HAHA agian.

Those that can't do.....Inspect.....?????