Oh no ... Not Another Shed Thread!

[Leesparkykent]

Now that is one thing I have never done ... but boy would I like to? Kayaking for 32 years ... electrical work, dabbling 'safely' here and there for perhaps a little less assisting with first fix during the rewiring of our house, wiring a plug in 'O' level physics and some other basics. When I left the RAF this became a little more formal with a few of those weekend, frequent flyer miles based, 17 D or Electrical Trainee courses. In the last weeks of my service I was able to complete my Civil Aviation Authority Private Pilots' Licence, in about 6 weeks. So do you think I can do more damage from the air or installing electrics? I am sure that there are many more jokes to be made at my expense ... though so far they have all left me laughing!

In between ... an Honours degree in Aeronautical Engineering ~ 400 Hz generators providing electrical power for avionics, the airworthiness 'joys' of electrical wiring loom fires due to carbon arc tracking across 'kapton' insulation. Then a Masters degree in Software Techniques for Computer Aided Engineering.

Here have a blue peter badge lol.

 

[GB.Kayak]

Here have a blue peter badge lol.

Wow, thats for me? Just what I have always wanted ... if he hadn't become persona non-grata ... I would have said you ' ... fixed it for me'. Genuine ... thanks it's almost better, if genuine, than the 'Veterans' badge that I received from HM Gov! I believe that those who have done something other than being a 'REMF' should be recognised ... but a tinplate enamelled badge following 14 years and then redundancy ... :-((

 

[Leesparkykent]

Wow, thats for me? Just what I have always wanted ... if he hadn't become persona non-grata ... I would have said you ' ... fixed it for me'. Genuine ... thanks it's almost better, if genuine, than the 'Veterans' badge that I received from HM Gov! I believe that those who have done something other than being a 'REMF' should be recognised ... but a tinplate enamelled badge following 14 years and then redundancy ... :-((

I'm not knocking you at all mate it was just the size of the OP that made me giggle lol. I have been reading it in little snippets I'm about 3/4 of the way through ATM.

 

[GB.Kayak]

I'm not knocking you at all mate it was just the size of the OP that made me giggle lol. I have been reading it in little snippets I'm about 3/4 of the way through ATM.

Did you like the twist in the plot @ t' end ... ? ;-P

 

[Silly Sausage]

Here's a question on the same theme...
A backyard has a metallic stand pipe (coming out of the ground) and a socket outlet (RCDed back in the house) within arms reach.
Basically a shed without walls or a roof.
Does the standpipe require bonding to the MET?

 

[Charlie_]

Here's a question on the same theme...
A backyard has a metallic stand pipe (coming out of the ground) and a socket outlet (RCDed back in the house) within arms reach.
Basically a shed without walls or a roof.
Does the standpipe require bonding to the MET?

I would say no it doesn't.
Think of all those whirly gigs and washing lines that would need earthing

 

[telectrix]

adjective1.introduced or coming from without; not belonging or proper to a thing;external; foreign:

as the standpipe is outside, it's not coming inside. ergo... it's not, by definition, extraneous.

 

[GB.Kayak]

Here's a question on the same theme...
A backyard has a metallic stand pipe (coming out of the ground) and a socket outlet (RCDed back in the house) within arms reach.
Basically a shed without walls or a roof.
Does the standpipe require bonding to the MET?

Would I be correct in thinking that the requirement, or otherwise, would be defined by a measurement of the impedance between the standpipe and the earth of the electrical installation at the socket outlet? If so, would local equipotential bonding be sufficient?

If so, the previous Poster's point about washing line poles is an interesting one. What happens if you are mowing the lawn and you cut the 2-core cable to the lawn mower? The mower shorts Line and Neutral, becoming live. If the current finds an earth path then the RCD operates. If the operator is the earth path then the aim is to reduce the earth path resistance to reduce the 'touch' voltage, potential difference, between the source of the voltage and earth; faulty lawn mower and earth. What happens if the person is in contact between the mower and a 'spiked' washing line or washing line pole?

 

[Simonslimline]

Would I be correct in thinking that the requirement, or otherwise, would be defined by a measurement of the impedance between the standpipe and the earth of the electrical installation at the socket outlet? If so, would local equipotential bonding be sufficient?

If so, the previous Poster's point about washing line poles is an interesting one. What happens if you are mowing the lawn and you cut the 2-core cable to the lawn mower? The mower shorts Line and Neutral, becoming live. If the current finds an earth path then the RCD operates. If the operator is the earth path then the aim is to reduce the earth path resistance to reduce the 'touch' voltage, potential difference, between the source of the voltage and earth; faulty lawn mower and earth. What happens if the person is in contact between the mower and a 'spiked' washing line or washing line pole?

Surely if the mower has a 2 core then it's class 2?

The fuse would or should operate under short circuit?

I could be reading this totally wrong however!

 

[telectrix]

hmm. i've just cut the mower cable. let me pick it up and hold onto the pole. flying pigs and darwinism comes into mind.

 

[Charlie_]

hmm. i've just cut the mower cable. let me pick it up and hold onto the pole. flying pigs and darwinism comes into mind.

I suppose that's one way to sort out the immigration problem

 

[GB.Kayak]

Surely if the mower has a 2 core then it's class 2?

The fuse would or should operate under short circuit?

I could be reading this totally wrong however!

Yes, electric mowers are doubly insulated ... note the cause of the fault is not internal, it is external ... though I suppose being doubly insulated, their body is probably plastic these days. Perhaps Tel's flying pigs are more realistic! ;-))

 

[telectrix]

see the pig.

 

[Geordie Spark]

View attachment 28137see the pig.

That nice new camera of yours doesn't take very big piccies does it???

 

[telectrix]

ok smartarse. here's a better one.

 

[telectrix]

https://uk.search.yahoo.com/search?fr=yo_tr_gc&ei=utf-8&ilc=12&type=711278&p=pink+floyd+animals

 

[Geordie Spark]

ok smartarse. here's a better one.

View attachment 28138

It's slightly better.

Have you tried feeding it with ------?

 

[GB.Kayak]

View attachment 28137see the pig.

... pink smudge between chimneys ... I cheated and looked at the larger image! Not close enough to visually IFF it yet!

I did however make out the cable the other day ...

 

[telectrix]

It's slightly better.

Have you tried feeding it with ------?

them chimneys have used up all the ------.

 

[Silly Sausage]

View attachment 28138

It flew away, proving that pigs do fly.