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Joining Water and Electricity #63172
03/10/06 06:35 AM
03/10/06 06:35 AM
R
RODALCO  Offline OP
Member
Joined: Dec 2005
Posts: 856
Titirangi, Akld, New Zealand
Photo's will be posted of this cable fault.

Today 10th Mar 2006, I had to locate a cable fault on a 4 core Al 185mm² at 4222 Great North Road Glendene, which also affected my favorite Italian Pizza shop. A generator was put in place to get power going prior to me locating the actual fault due to the 33 kV fault on the North Shore which had more priority.

Digger opened up hole, Jackpot!! [Linked Image] Water pipe straight through double orange ducts from roadcrossing to transformer.

Photo evidence speaks for itself.


The product of rotation, excitation and flux produces electricty.
Work Gear for Electricians and the Trades
Re: Joining Water and Electricity #63173
03/11/06 08:04 PM
03/11/06 08:04 PM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,247
SI,New Zealand
Pics and info:


Quote
The council is upgrading the older water mains at the moment.
By drilling for a the new water mains at 4222 Great North road Glendene, the drilling contractor had the power marked out by the POCO.
but, he didn't mark the road crossings,
and
Jackpot!!
Fizzle and crackle,
Some people had lost power or had only 1 Phase.

Power was not lost immediately when the cable was hit but it lasted for nearly 2 weeks and a bit of rain, triggered all the events.

The 200 kVA supply transformer was across the road.

Cable damaged was 4 core Aluminium 185mm².


[Linked Image]

Better view, when digger opened up the hole.
Note the thin black cable was a Telecom cable That cable got nicked by our digger operator so we called Telecom to fix it.
no marker strip was put in place.

[Linked Image]

Closer up of ducts. Not sure what is in the white pipe. That may be the older watermains.
Both black cables are Telecoms.

[Linked Image]

Re: Joining Water and Electricity #63174
03/11/06 09:36 PM
03/11/06 09:36 PM
M
Mash  Offline
Member
Joined: Sep 2005
Posts: 51
South Australia
How did the water pipe go through the electrical conduit, was it bored from the side?

Re: Joining Water and Electricity #63175
03/11/06 10:32 PM
03/11/06 10:32 PM
R
RODALCO  Offline OP
Member
Joined: Dec 2005
Posts: 856
Titirangi, Akld, New Zealand
Correct!

Done with directional drill, then pipe pulled through afterwards when drill is retracted.


The product of rotation, excitation and flux produces electricty.
Re: Joining Water and Electricity #63176
03/12/06 07:25 AM
03/12/06 07:25 AM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,274
Fullerton, CA USA
This thread's been relocated.
You can find it Here , In the Photos Submitted for Discussion Area


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