Reply
 
Thread Tools Search this Thread
 
Old 27 August 2009, 10:48   #41
Member
 
Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,115
Quote:
Originally Posted by chewy View Post
No. But thats the point of buying one I can practice so I can weld.
Regardless of whether I can weld or not or if it would be cheaper to take it to the fab shop my original question still stands.
....buy, if you can find one, a single phase old oil filled "stick" set...they should be dirt cheap. Get in touch with your local college and see if they do evening courses..lots around here do..not surprisingly..and learn to weld “SMAW”. Once you've mastered this…and with a little guidance it’s possible, then you can move to MIG/MAG if you wish. People A) underestimate the versatility of stick and B) often think that MIG is “better”. Sure, it’s a lot easier to get a “pretty” weld with MIG….but learn to be a "welder"..before you become just another “torch holder”….you won’t lose any money on your old stick set..if you move to MIG…and they are useful bits of kit to have around….
__________________

__________________
Jono is offline   Reply With Quote
Old 27 August 2009, 10:51   #42
Member
 
chewy's Avatar
 
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
So Arc or Mig? I'm going to be using outside so is Arc better?
__________________

__________________
chewy is offline   Reply With Quote
Old 27 August 2009, 11:12   #43
Member
 
Country: UK - England
Town: Brum
Boat name: UTV
Make: zodiac FR
Length: 3m +
Engine: 2 stroke 15hp
MMSI: 999
Join Date: May 2003
Posts: 379
Quote:
Originally Posted by Jono View Post
It's not "my opinion", Sunshine, I know what the difference is between an “earth leakage” and “overload” protection device. I'm not going to debate it with you. If you're interested, do some research..there's plenty of information out there..most of it free.
Sunshine,,,,,thanks 'arc flash'. Just one last point for you to consider.

Before RCD's and MCB's were introduced what protected people and livestock against indirect electric shock? Fuses? Bet you didn't know that?

Will have to use this thread to highlight the incompetence that surrounds my industry.
__________________
Big waves, small boat ;)
tinker is offline   Reply With Quote
Old 27 August 2009, 11:13   #44
RIBnet supporter
 
bedajim's Avatar
 
Country: UK - England
Town: Cambs/Northants
Length: no boat
Join Date: May 2006
Posts: 2,499
Quote:
Originally Posted by chewy View Post
So Arc or Mig? I'm going to be using outside so is Arc better?
One of the inverter arc sets )
__________________
bedajim is offline   Reply With Quote
Old 27 August 2009, 11:31   #45
Member
 
Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,115
Quote:
Originally Posted by tinker View Post
...Will have to use this thread to highlight the incompetence that surrounds my industry.
Jeez...don't tell us you're a SPARKS? Guys on here talking about changing a 13-amp fuse in a plug on a 240V household supply… and you come out with this..

Quote:
Originally Posted by tinker View Post
Any voltage over 50v is considered a shock risk. This is what protective devices are rated to, to prevent a greater voltage than 50v+. BS7671:2008.

If you increase the rating of the protective device it takes longer to cut out during an indirect fault condition, meaning the voltage will be greater than 50v

:
I think you’ll find that 240 volt (A/C) fuses are rated to just that…240..and tested at 260….

Either get your money back from whatever course you went on…or consider a change in career.
__________________
Jono is offline   Reply With Quote
Old 27 August 2009, 12:00   #46
Member
 
Country: UK - England
Town: Brum
Boat name: UTV
Make: zodiac FR
Length: 3m +
Engine: 2 stroke 15hp
MMSI: 999
Join Date: May 2003
Posts: 379
Sorry about the hijacking of this thread, I do not normally rise to stupid comments and silly insults but as this is safety related and Jono appears to be encouraging a disregard for fuses and their ratings I feel obliged to step up to the table.

When you put you finger on a live part of an electrical system (during fault conditions) the current flows through your body down to earth and then straight back to the suppliers transformer (through the earth fault path)

The fault current then passes through the live conductor all the way back to the point of the fault, this circuit is called the fault path and its what generates your overload, which trips the MCB or blows the fuse.

Please take your time to read the link below, which clearly outlines the purpose of a fuse link

Fuses by the IET

I will not comment anymore on this subject.

PS Arc is not very good for thin materials, it tends to buckle it under the heat generated
__________________
Big waves, small boat ;)
tinker is offline   Reply With Quote
Old 27 August 2009, 12:05   #47
Member
 
Country: UK - Wales
Town: Here
Boat name: doggypaddle
Make: Avon 5.4 Searider
Length: 5m +
Engine: yamaha 80
Join Date: Jul 2007
Posts: 1,107
Quote:
Originally Posted by Jono View Post
Jeez...don't tell us you're a SPARKS? Guys on here talking about changing a 13-amp fuse in a plug on a 240V household supply… and you come out with this..



I think you’ll find that 240 volt (A/C) fuses are rated to just that…240..and tested at 260….

Either get your money back from whatever course you went on…or consider a change in career.

20 mils kills! so the old saying goes, and it tales 1 second to blow a domestic plugtop fuse @ 100 amps (scary eh)
how the hell is a fuse going to stop you from getting a shock???
all a fuse does is blow in an overcurrent situation. if the overcurrent situation is caused by a leakage to an earthed metal case then it could potentially prevent a shock if the earth wasn't perfect and the voltage rose significantly above ground. A career change.......
__________________
I am usually not as green as i am cabbage looking.
doggypaddle is offline   Reply With Quote
Old 27 August 2009, 12:13   #48
Member
 
Country: UK - Wales
Town: Here
Boat name: doggypaddle
Make: Avon 5.4 Searider
Length: 5m +
Engine: yamaha 80
Join Date: Jul 2007
Posts: 1,107
Quote:
Originally Posted by tinker View Post
Sorry about the hijacking of this thread, I do not normally rise to stupid comments and silly insults but as this is safety related and Jono appears to be encouraging a disregard for fuses and their ratings I feel obliged to step up to the table.

When you put you finger on a live part of an electrical system (during fault conditions) the current flows through your body down to earth and then straight back to the suppliers transformer (through the earth fault path)

The fault current then passes through the live conductor all the way back to the point of the fault, this circuit is called the fault path and its what generates your overload, which trips the MCB or blows the fuse.

Please take your time to read the link below, which clearly outlines the purpose of a fuse link

Fuses by the IET

I will not comment anymore on this subject.

Just as well because all you have written is utter crap. Re read what you have written, you are suggesting the fault current through contact with a live part through the body is what blows the fuse!
If something is live due to a fault and it hasnt blown the fuse due to the overload, (due to poor earthing) and you then touch that live component carrying the current to ground then youre feckked fuse or not.
__________________
I am usually not as green as i am cabbage looking.
doggypaddle is offline   Reply With Quote
Old 27 August 2009, 12:15   #49
Member
 
Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,115
Quote:
Originally Posted by tinker View Post
Sorry about the hijacking of this thread, I do not normally rise to stupid comments and silly insults but as this is safety related and Jono appears to be encouraging a disregard for fuses and their ratings I feel obliged to step up to the table. ……….

PS Arc is not very good for thin materials, it tends to buckle it under the heat generated
You really don't have a clue do you? I wasn't "encouraging" anything..just pointing out that you were giving some seriously incorrect information.
You grab hold of something with an Earth/live problem and a fuse/MCB isn’t going to be an awful lot of good to you. Now an RCD may just save your life…you’d do well to brush up on the difference…then “step up to the table”

Chassis on Landrovers are perfectly suitable for welding with SMAW….
__________________
Jono is offline   Reply With Quote
Old 27 August 2009, 12:17   #50
Member
 
Country: UK - Wales
Town: Here
Boat name: doggypaddle
Make: Avon 5.4 Searider
Length: 5m +
Engine: yamaha 80
Join Date: Jul 2007
Posts: 1,107
Quote:
Originally Posted by Jono View Post
You really don't have a clue do you? I wasn't "encouraging" anything..just pointing out that you were giving some seriously incorrect information.
You grab hold of something with an Earth/live problem and a fuse/MCB isn’t going to be an awful lot of good to you. Now an RCD may just save your life…you’d do well to brush up on the difference…then “step up to the table”

Chassis on Landrovers are perfectly suitable for welding with SMAW….
Just give up....he clearly didnt digest the contents of the link he posted
__________________

__________________
I am usually not as green as i am cabbage looking.
doggypaddle is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:22.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.