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[Kim Holburn]

On 2011/Apr/27, at 2:59 PM, Richard Chirgwin wrote:

> Indeed. What follows is a true story from the 1990s, although I can't 
> remember whether the company was Synoptics or someone else ...
> 
> The occasion was a trade show at Darling Harbour, Interop or perhaps 
> ATUG (back when it had exhibitions as well as its conference). The 
> equipment to be demonstrated needed Ethernet cabling.
> 
> The contractor ran the cable by wrapping it around a pipe up in the open 
> ceiling. Also running along the same pipe was one phase of the 
> three-phase power supply; the network switch was connected to a 
> different phase; and when the Ethernet port was plugged into the switch, 
> it smoked. So I do think there are *some* good reasons behind cabling rules.

> OK, that's an extreme example. But we have just had a national scandal 
> because insulation installers got killed using a staple gun where 
> there's live cabling. Can I imagine someone trying to nail a saddle for 
> an Ethernet cable to a noggin, and nailing through a 240V cable they 
> hadn't noticed? Easily.

I was going to comment on that.  Firstly those regulations are state and possibly even local council regulations so may differ in different states.  

Secondly it's amazing we have all this regulation and evidently it didn't apply during the insulation installation ... except it did - some states had decent regulations and had no issues.  

So if you live in Queensland you're probably allowed cable your own house.




-- 
Kim Holburn
IT Network & Security Consultant
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