Search results for query: cockburn

Yes, I was making the point to Mr Cockburn that you can't make assumptions about earth leakage disconnection times (or any disconnection time for that matter) He simplistically wrote (and I quote) "Firstly Sparticus - the RCD trips within 0.04 of a second" Yes, that is my experience...

If there is a reasonable chance of the metal item coming into contact with a live conductor then it is my opinion that common sense requires consideration be given to each specific case. My opinion is you are a person with a closed mind that finds it easier to do as the book requires instead...

...one from electronics :D I haven't been part of this thread (or the others) but as an observer and having read most of the posts made by cockburn he seems very arrogant and the type of person who doesn't know when to stand down. I imagine he has a proper bap nose due to his arrogance and...

From page 15 - the very last numbered page - of his 'book'. "David Cockburn is an Electrician[sic] who was given a start in the industry by his Father[sic]. Nearly a decade and a half of practical experience preceded by a highly successful college education..."* I reckon this is a clue...

...the arguements from all sides. Therefore please stop writing silly reviews at Amazon. Perhaps if we all have a chance to give our opinions we can get the thing right this time and once again have a set of wiring regulations that do not need a legal disclaimer. Regards, David Cockburn.

Spark123, you are right I think "RCD" is or has become a generic term. I was trying to get Mr Cockburn to realise/acknowledge that you can not make assumptions about disconnection times, that the actual disconnection times are dependant upon the device, the wiring, the "impedance" of the earth...

FWIW I think your postings are tantamount to trolling too, mr cockburn. RF Ligthing, Spark123, dingbat, Ricicle and others have gained my respect over years of reading this forum. Your postings and from what I have read of your book on amazon have the opposite effect. Your muddled use of...

...bog roll holder or other metal items unrelated to an electrical installation could become charged (i.e. connected to a live source). Mr Cockburn's entire argument appears to rely on a ficticious damaged flex somehow contacting these metal items and therefore causing a shock risk. While...

I'm getting really irritated by Cockburns random ramblings in these threads. He refuses to enter a proper debate despite being given the opportunity and he refuses to accept scientific fact despite it being spoon fed to him. Conclusion: he is a bit thick. You can see that from his pamphlet...

I can see the point that Mr Cockburn is making. 30 amp fuse wire can carry far more than 30 amp for a significant period of time and it is not impossible that the cable could be compromised by that "excessive" current. If the maximum design load is 20 amps and the cable's rated (*) current...

Mr Cockburn From your posts: and from earlier I have in my hand a give away pen provided by one of those pencil necked firms of lawyers carefully emblazoned with their logo. It has a metallic clip which I believe falls under the definition of a "Conductor" since I can use it with a...

...reputation of the trade that I practice and make my living from. On the plus side these people are are not in the majority and I do have the good fortune to work with some brilliant people from time to time. So everything in perspective as D Cockburn might say about potential fault current :P

...off of a socket and put the back of your index finger onto the live conductor. I very much doubt that the RCD will trip and it will hurt like a son of a bitch. Once you've done this, then come back and debate me over whether or not you think you need earthing. Regards, David Cockburn.

...providing the opportunity for 'direct contact' to take place under fault conditions. Direct contact can kill people especially children and the elderly! If ever there was a case of curing the headache by cutting off the head, the 17th edition is certainly it. Regards, David Cockburn.

...alarm system standards. An awful lot of the amendments that I have put forward have also been deferred to the next major re-write. If Geoff Cronshaw was honest he would also admit that it was me who suggested using rcd's to protect all general purpose socket outlets. Regards, David...

...under which the latter can be omitted from bathrooms? Only in the Wild and Wacky World that exists inside the head of a certain Mr. David Cockburn :wink: http://www.diynot.com/forums/viewtopic.php?t=228045&start=0...

...experiment on a useless piece of junk without highlighting the importance of utilising the safe isolation procedure until prompted by myself. As for your decision to communicate with Mr David Cockburn noted author, self publicitist and expert on ....well ....... erm!!...... nothing really...

...these installations! One last thing: I am the proud owner of a set of City and Guilds qualifications that all have something in common apart from the fact that they all bare name, they also include the phrase "no higher grade can be achieved in this subject". Regards, David...

:roll: :roll: [/url] What did that article, and your book, tell you about the size you need to use?

I, Bernard Green, assure you and others that I have formed my opinons about earthing and bonding and equipotential areas from 40 years of electronic and electrical design. fault finding and consultancy. An important part of my decision process is the history of how true earthing to ground via...