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Thanks, that clears it up now. :) So the only reason, from my understanding, is that a 20amp re-wire able fuse would hold an over current condition longer than an MCB. MCBs start their trip curve around 125%, correct?

Why would a breaker allow for more current though? Im confused...

Correct, but to those like myself who are willing to do to everything to code it can be a burden. For now lets agree to disagree. Anyway, in regards to CCC, I came across this chart. Is it based on any particular IEC installation reference; or does it apply to all installation references...

I agree with that part. Ive been on DIY sites where people haven't got a clue just wanting to hear what they want to hear. Doing anything takes education, and understanding where your skills may fall short.

In the US that would be enough to publicly disclose the regs. Perhaps DIY work is less likely to be performed or perhaps indirectly discouraged, hence no effort to disclose them.

They would, but IMO that would be of help, as it would let people reference the very rules which dictate a safe installation. BS7671 is pretty much the most important training. What sparky does not reference everything against it? I get your logic in a sense that if the regs are like...

I agree with that part, in the US anything that is not law is copyrighted and restricted as the publisher sees fit. However, the part that bewilders me, is why BS7671 isn't excepted into law when its so commonly used (close to 100% of the time). But how would the inspector determine its...

BS7671 may not be technically accepted into law (I think that is a mistake) but surely inspectors must use some means or measure to judge an installation as safe? Or site something claiming its not? In theory then, I could wire a massive home in a single 4mm2 radial circuit, 50amp MCB, no...

That is true, the publications made and sold by the NFPA is their income, however the NEC has been available for decades unrestricted to the public and in so far the NFPA is still going strong. The UK and the IET may know something where it will not work out for them, but IMO I still think its...

OK, just saw the post above, it has the same wiki link. My mistake :oops:

Actually, if you sign up for NFPA, you can view the NEC for free. The viewer is fidgety, but you could view the whole thing if you wanted http://www.nfpa.org/codes-and-standards/free-access http://www.nfpa.org/codes-and-standards/document-information-pages?mode=code&code=70 Anyone can...

Good point, you are technically correct :D An electrician can install a 240 volt outlet anywhere, but the inspector cant control what gets plugged in down the road.

Im sure NFPA 70 looses some money, but not enough to bother them. In the US anything that is used for law purposes (like the NEC) must be disclosed free of charge. It might be because DIY work is very common in the US, so that could be a driving factor I guess. Not that I do not agree with you...

It might not work for the UK, but its been done for years in the US. The NFPA still makes good profit. Maybe its because the NEC is re-newed every 3 years, so there is less to loose. Dunno.

I still think the UK should pass a law requiring BS7671 to be legally disclosed like the NEC is in the US. Technically the NEC is also copy righted, but the un redacted text (or locally amended text if applicable) is required to be accessible as law documents free of charge. The NEC...

So in theory I could wire a home to the 2014 National Electrical Code (NFPA 70) and argue its ok showing the evidence? Just wondering, please forgive me.

But the inspector has to use something as a basis to judge my work, right? BTW, I'm going to remove the links to BS7671 from my posts then.

But if BS7671 is used and enforced as a legal standard in the UK, there is no way to obtain it free of charge such as a government record's copy?

Thanks. Is there a legal way to obtain wiring regs?