Same trench: Electricity and water ???

[Cliff Rogers]

G'day.

I did this course so I could get my cabler's licence... $780... :mad:

(Knocks dust off course notes) (talking data here by the way, but…)

Bug'a... sez fug'all really, I quote....

AS009:2001 5.5.3.8 Shared trenches with other services
5.5.3.8.1 Where customer cabling is installed in a trench together
with conduits, pipes or cables supplying services for utilities such as gas,
water and electrical power, physical separation between the customer
cabling and other service(s) shall be as required by the utility concerned.
End quote.

Useless as tits on a bull...
reminds me of a 3 stooges show...
everyone's pointing at everyone else...

Digging further, I've come up with 1998 copy of a Telstra book of rules....
Again, this is for data (communications) cable...
It even has all the colour codes for the 'pipes' or conduits for all the services.
In a nutshell, it can be in a shared trench with power less than 1000V ac or
water as long as it's in a white conduit & has a 100mm separation from either.
The damned book doesn't mention the separation between power & water
in a shared trench so we are no further really other than to say it seems
to be possible if the service is the correct distance under the ground &
contained in the correct coloured conduit so....
Here we go.... (there are some finer technicalities but...)
Power, Orange conduit, 500mm minimum below surface.
Communications, White conduit, 300-500mm urban 450-600 rual.
The second figure is for under trafficable areas.IE 500mm under an urban road.
Water pipe, Green conduit, 225mm minimum below surface.
(drinking water has an undisclosed supplementary colour )

From all that waffle, if you stuck your water at least 225mm under ground &
stuck the power in an orange conduit at least 275mm under that,
you'd be pretty safe I'd reckon.

Hope that helps....

[soundman]

The other problem is they keep changing things.

in the old as3000 trench depth was 600mm traficable & 300 untraficable.

I got sick of updating my austel regs book at one time the monthly alterations were like 20 to 30 pages.

the old AS3000 anybody with a bit of time & decent comprehension could read the book & understand. now since its aligned with the european style of standard and all the usefull tables & apendicies have been left out you need to go on a course just to keep up.

AAAGGH

[Fantapantz]

Thanx............