Abus Granite 54 lock problem

Thanks Colin, I'll get a 650 watt 4 1/2" grinder later today and start the
job.
What's a RCD 🙂

"Colin Blackburn" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

On Thu, 14 Oct 2004 22:38:18 +0100, Andy Dingley <[email hidden]>

Quoted message said:

Victor said:

Any suggestions?

Quoted message said:

Hiring a petrol disc cutter will shift it, at a cost. An electric
angle grinder (£6 from Screwfix) and a long extension lead might do,
if the neighbours are helpful.

And, if you do use an electric one make sure there's an RCD at the socket
end of the extension lead.

Colin

Victor said:

Thanks Colin, I'll get a 650 watt 4 1/2" grinder later today and start
the
job.
What's a RCD 🙂

Residual Current Device (IIRC) Modern houses may have a socket with one
built in but if not it is a device which plugs into the wall socket and
then you plug the extension lead into the RCD. It is there to protect you
should you accidentally cut through the extension cable or do various
other electrically dangerous things. You'll be able to get one in Argos
when you get the grinder.

Colin

Victor said:

Thanks Colin, I'll get a 650 watt 4 1/2" grinder later today and
start the job.
What's a RCD 🙂

Rotational Cutting Device?????

On 15/10/04 10:54 am, in article
[email hidden], "Victor" <[email hidden]>

Quoted message said:

Thanks Colin, I'll get a 650 watt 4 1/2" grinder later today and start the
job.
What's a RCD 🙂

Residual current device.. Detects if you have cut through the cable and are
electrocuting yourself. A good thing to have on all electrical stuff in
hazardous environs (eg garden, shed etc.

BTW you do not want a diamond blade, you want a metal cutting blade. There
is a significant difference.

A diamond blade will be destroyed if you are cutting straight metal.

There are two types of blade, cutting and grinding. You want the cutting one
which is thinner and cheap. I wouldn't expect to take too long to get
through it.

...d

Quoted message said:

"Colin Blackburn" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

On Thu, 14 Oct 2004 22:38:18 +0100, Andy Dingley <[email hidden]>

Quoted message said:

On Thu, 14 Oct 2004 19:36:33 +0100, "Victor" <[email hidden]> wrote:

> Any suggestions?

Quoted message said:

Hiring a petrol disc cutter will shift it, at a cost. An electric
angle grinder (£6 from Screwfix) and a long extension lead might do,
if the neighbours are helpful.

And, if you do use an electric one make sure there's an RCD at the socket
end of the extension lead.

Colin

"Victor" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Liquid nitrogen, Bics whatever next!

Call me old fashioned but I think I'll try the angle grinder first. It
seems to get the most votes. Good old Argos stock a wide range. I guess

I

Quoted message said:

should opt for the 9" version with 2000+ Watts with a diamond blade.

Screwfix sell a 9" angle grinder for 20 quid...

(possibly not entirely helpful since you'll want one _now_!)

Friend was cutting some steel plate he had in his garden (half inch thick
stuff). Borrowed a 9" grinder to do the job.
First slice took nearly all of a blade.
The subsequent couple put barely a dent in the next blade. The difference
was doing it in a series of small passes, doing a couple of mm each pass. I
think the multipass method may have been quicker too.
Relevance to your lock? don't press too hard or try to cut too much at once.

cheers,
clive

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

Residual Current Device (IIRC) Modern houses may have a socket with one
built in but if not it is a device which plugs into the wall socket and
then you plug the extension lead into the RCD. It is there to protect you
should you accidentally cut through the extension cable or do various
other electrically dangerous things. You'll be able to get one in Argos
when you get the grinder.

Having had a "An RCD saved my life" (TM) experience I can heartily
recommend them. For about £10 (Max) you get to tell everyone about the
day you cut through the mains cable with an angle grinder.

Do not rely on fuses. They will perform the same function.

Jon

Victor said:

Thanks Colin, I'll get a 650 watt 4 1/2" grinder later today and start
the
job.

Oh, and do watch your frame. If you slip you'll find that the cutting disc
will go through your bike frame a lot faster than it will go through the
lock. If the positioning is precarious it might be worth putting something
between the bit of the U-lock you are cutting and the bike itself.

Colin

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

Do not rely on fuses. They will NOT perform the same function.

Thankyou.

<Must proof read posts before sending. Must proof read posts before
sending...>

Quoted message said:

A fuse is there to protect the wiring (for example, from melting), not
the user - they are far too slow to prevent electrocution. Hence the
need for an RCD which operates so fast that the shock won't kill you!

Wot I was trying to say!

Jon

Jon Senior said:

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

Residual Current Device (IIRC) Modern houses may have a socket with one
built in but if not it is a device which plugs into the wall socket and
then you plug the extension lead into the RCD. It is there to protect you
should you accidentally cut through the extension cable or do various
other electrically dangerous things. You'll be able to get one in Argos
when you get the grinder.

Having had a "An RCD saved my life" (TM) experience I can heartily
recommend them. For about £10 (Max) you get to tell everyone about the
day you cut through the mains cable with an angle grinder.

Do not rely on fuses. They will perform the same function.

Jon

Do not rely on fuses. They will NOT perform the same function.

A fuse is there to protect the wiring (for example, from melting), not
the user - they are far too slow to prevent electrocution. Hence the
need for an RCD which operates so fast that the shock won't kill you!

Richard.

Victor said:

I guess I
should opt for the 9" version with 2000+ Watts with a diamond blade.

9" has no more "cutting power", but it does have a better reach.
Don't use a diamond blade - they're for stone.

--
Smert' spamionam

Victor said:

should opt for the 9" version with 2000+ Watts with a diamond blade.

No No No - you don't want a diamond blade, you want a metal cutting
blade (just a thin abrasive). Let teh machine do the work - just rest
teh blade lightly on the lock, don't press hard.

Wear all teh protective gear - angle grinders are nasty beasts.

regards, Ian SMith
--
|\ /| no .sig
|o o|
|/ \|

Colin Blackburn said:

On Thu, 14 Oct 2004 22:38:18 +0100, Andy Dingley <[email hidden]>

Quoted message said:

Victor said:

Any suggestions?

Quoted message said:

Hiring a petrol disc cutter will shift it, at a cost. An electric
angle grinder (£6 from Screwfix) and a long extension lead might do,
if the neighbours are helpful.

And, if you do use an electric one make sure there's an RCD at the socket
end of the extension lead.

I'd worry a lot more about the sparks: wear decent eyeprotection and
don't point the shower of sparks at self, glass or painted surfaces if
you can help it!

A visegrip to immobilize the object to be cut works wonders too. And you
probably don't want to use the plastic grip: grab the head of the
grinder and rest your fingers on the lock for extra control.
--
---
Marten Gerritsen

INFOapestaartjeM-GINEERINGpuntNL
www.m-gineering.nl

I am pleased to announce the Abus Granite was defeated by a £19.99 900watt
grinder and a single metal cutting disc in under 10 minutes. As the U
section of the lock was square shaped I had to cut through both ends, but
was amased at the speed it went throught it.
Being young (daft) and impatient I did not use a RCD nor a Bic for that
matter, but lived to tell the tale.

Many thanks to all posters. I hope others learned as much as I did.

Vic out...

Victor said:

I am pleased to announce the Abus Granite was defeated by a £19.99
900watt
grinder and a single metal cutting disc in under 10 minutes. As the U
section of the lock was square shaped I had to cut through both ends, but
was amased at the speed it went throught it.
Being young (daft) and impatient I did not use a RCD nor a Bic for that
matter, but lived to tell the tale.

Tut, tut,...

Quoted message said:

Many thanks to all posters. I hope others learned as much as I did.

Yes. We learned that the Abus Granite takes 10 minutes to break ;-)

I hope my Granite+ plasts a bit longer :-(

Colin

Colin Blackburn <[email hidden]> wrote:

: Yes. We learned that the Abus Granite takes 10 minutes to break ;-)

Actually, I was impressed it took 10 mins. That's damm good against
an angle grinder.

--
Arthur Clune PGP/GPG Key: http://www.clune.org/pubkey.txt
"Blogs are neither necessary nor sufficient for evil to triumph.
They're just what we call an enabling technology" - Danny O'Brien

Arthur Clune said:

Colin Blackburn <[email hidden]> wrote:

: Yes. We learned that the Abus Granite takes 10 minutes to break ;-)

Actually, I was impressed it took 10 mins. That's damm good against
an angle grinder.

Yes, you're right. ISTR that most magazine tests work on a 5 minute
attempt. I assume the "average" theif won't try for much longer.

Colin

I was prepared for a long bloody battle. I even bought 3 spare cutting
disks. Got a refund on those puppies 🙂 Guess I was lucky that an electical
outlet was within reasonable distance, thus avoiding the petrol saw job.

"Colin Blackburn" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Arthur Clune said:

Colin Blackburn <[email hidden]> wrote:

: Yes. We learned that the Abus Granite takes 10 minutes to break ;-)

Actually, I was impressed it took 10 mins. That's damm good against
an angle grinder.

Yes, you're right. ISTR that most magazine tests work on a 5 minute
attempt. I assume the "average" theif won't try for much longer.

Colin

On Fri, 15 Oct 2004 11:05:09 +0100 someone who may be "Colin
Blackburn" <[email hidden]> wrote this:-

Quoted message said:

Residual Current Device (IIRC) Modern houses may have a socket with one
built in but if not it is a device which plugs into the wall socket and
then you plug the extension lead into the RCD. It is there to protect you
should you accidentally cut through the extension cable or do various
other electrically dangerous things.

Cutting through the sort of electrical cables one has in a domestic
setting us not usually dangerous (though don't try this at home).
What is dangerous is examining the ends of the cut cable, without
ensuring that the electricity has been isolated first.

--
David Hansen, Edinburgh | PGP email preferred-key number F566DA0E
I will always explain revoked keys, unless the UK government
prevents me by using the RIP Act 2000.

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On 15/10/04 4:02 pm, in article [email hidden], "Arthur

Clune said:

Colin Blackburn <[email hidden]> wrote:

: Yes. We learned that the Abus Granite takes 10 minutes to break ;-)

Actually, I was impressed it took 10 mins. That's damm good against
an angle grinder.

Indeed, last time I had to break a lock like that (D-lock) it took about 30
seconds with a car jack..

...d

On Fri, 15 Oct 2004 10:38:29 GMT someone who may be The Oldfellow
<[email hidden]> wrote this:-

Quoted message said:

Do not rely on fuses. They will NOT perform the same function.

This statement is true, but as they are not designed to perform the
same function so it is moot.

Quoted message said:

A fuse is there to protect the wiring (for example, from melting), not
the user - they are far too slow to prevent electrocution. Hence the
need for an RCD which operates so fast that the shock won't kill you!

I disagree. Having designed, built and maintained electrical systems
(up to 33,000V) I do have a fair idea of what I am talking about.

A fuse (or over current circuit breaker) is provided for a number of
reasons. One of these is to limit the chances of electrocution if
there is a live to earth fault, as might happen for a number of
reasons. The size of the cables and the rating of the protective
devices are co-ordinated with the type of installation to limit the
voltage and duration of the electric shock someone will experience
in such circumstances. It is not possible to eliminate the shock.
The shock will probably be nasty, but usually not fatal.

The "fact" that circuit breakers operate rapidly is a common myth,
but it is just that. A circuit breaker consists of mechanical
contacts (which are relatively slow to operate) and a tripping
mechanism, consisting of (rapid acting) magnetic and/or (slow
acting) thermal elements, which move linkages which operate the
contacts. This is true whether the circuit breaker is detecting over
current or leakage current.

The characteristics of these devices vary in too complicated way to
describe here. However, the fastest acting protective device in a
short circuit is a High Breaking Capacity fuse, which is also able
to break a far higher current than any circuit breaker. That is why
they are fitted in my fuse boards.

None of this discussion means that I do not recommend using an RCD
with power tools. However, they do not protect against all
electrical faults and it is dangerous to assume that they do.

--
David Hansen, Edinburgh | PGP email preferred-key number F566DA0E
I will always explain revoked keys, unless the UK government
prevents me by using the RIP Act 2000.

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