Professional electrician ?

[Guest111]

What a chuckle,just read this months P E magazine and there,s a cracker in the faults section,a photo of a switched fused spur wired in 2.5 straight into a set of henly blocks with the tails! No wait thats not the funny part,the laugh is the so called electrician who states that "it was my mates house and there was 100 amp going through a 2.5 feeding garden lights,and it had a 13a fuse in the fcu.Obviously a classic case of someone without a clue,just because it,s connected to the henly,s and therefore protected only by the 100a? service fuse doesnt mean its taking 100a, and if it was they,d be big outside lights and what about the 13a fuse? Just proves worryingly how little knowledge some people have.

 

[Guest111]

I don't think the forum should be giving the impression, to those that don't know any better, that 2.5mm T&E on a 100A fuse is a good idea. Fair enough, overload protection may be omitted on account of the 13A maximum loading, but under short circuit conditions there's every likely-hood that the 1.5mm cpc will be vaporised. 543.1.3 applies...

lExactly,the point I was making was that a so called spark who posted it in the magazine ignored the blindingly obvious issues and seemed obsessed with the mistaken belief that because the FCU was connected directly to a 100 amp service fuse then it was drawing 100 amps.Rather than actually understanding that the 100amps is what is available but only the current required by the item in use is what it taken,in the case of a few outside lights probably less than 2 amps.

 

[Amp David]

lExactly,the point I was making was that a so called spark who posted it in the magazine ignored the blindingly obvious issues and seemed obsessed with the mistaken belief that because the FCU was connected directly to a 100 amp service fuse then it was drawing 100 amps.Rather than actually understanding that the 100amps is what is available but only the current required by the item in use is what it taken,in the case of a few outside lights probably less than 2 amps.

Read it yesterday.

Best bit is that this cable runs so hot that in the winter its the only cable running outside with no snow or ice on it. The other one that made me also chuckle is the letter titled 'garage nightmare'.

How the hell do they know theres no RCD inside the house and the bit about the cleat being upside down. Personally, I never knew there was a right way for any kind of cable clip.

Think they should change the magazine title to, Professional Electrician and DIY Enthusiast

 

[Guitarist]

Read it yesterday.

Best bit is that this cable runs so hot that in the winter its the only cable running outside with no snow or ice on it. The other one that made me also chuckle is the letter titled 'garage nightmare'.

How the hell do they know theres no RCD inside the house and the bit about the cleat being upside down. Personally, I never knew there was a right way for any kind of cable clip.

Think they should change the magazine title to, Professional Electrician and DIY Enthusiast

I think the problem is that we now have so many so-called "professional electricians" with absolutely no training or experience other than that which a test bench at college gives them, so they may as well be DIY enthusiasts.

 

[trev]

Might just have been my mentor's personal preference but he told me that the nail or screw on a clip or cleat always went on the bottom wherever possible as that's what's bearing the weight of the cable. I have continued this level of ---- retentiveness to this day

 

[Amp David]

That's my point trev, what right and whats wrong.

Horizontal run I always fix from the top with cleats and the bottom with clips and when vertical from the left.

 

[mountainman]

lExactly,the point I was making was that a so called spark who posted it in the magazine ignored the blindingly obvious issues and seemed obsessed with the mistaken belief that because the FCU was connected directly to a 100 amp service fuse then it was drawing 100 amps.Rather than actually understanding that the 100amps is what is available but only the current required by the item in use is what it taken,in the case of a few outside lights probably less than 2 amps.

He is probably a plumber!