Re: buzz buzz buzz - I wonder why it does?

[Richard Malcolm-Smith <rich@xxxxxxx>]

> Keith Doxey wrote:
> 
> CEE Connectors on everything.
> 
> I "Should" have said connectors not cable although they do
use Yellow
> and Blue cables to indicate the voltage and aid visibility.
> 
> The size of the plug shell is related to the current rating.
typically
> 16, 32, 63, 125A
> The 16A plugs are about 50mm diameter x about 150 mm long.
> The 125A connectors are about 100mm in diameter and can be upto
300mm
> long.
> 
> They are actually very good connectors, strong, protected against
the
> ingress of moisture and dirt and MUCH cheaper than the earlier
metal
> exterior sockets that used to be used. As I said colours indicate
the
> working voltage and current type eg Low Voltage DC and the
connectors
> are keyed so you cant insert a yellow plug into a blue socket. The
> also have connectors from 2 to 5 or 6 pins.

We have the Blue 16 and 32 amp ones here in trailer parks for the mains
supply.. A few years ago when the old metal reyrole ones suddenly
became
"Unsafe" they did sweeps of the trailerparks forcing anyone that
still
had the old metal plug on the trailer to disconnect it. That didnt make
many friends.. hehe..

Apparantly, with the chassis of the metal plugs being connected to
earth, too many people were frying themselves on incorrectly wired
leads
to adapt a normal 3 pin plug to the metal plug.. Never mind that that
lead would make the entire trailer live.. The red ones are used in some
commercial installations for the 3 phase, but most places use th
see-thru PDL ones instead to keep consistancy.

On building sites here they have large trollys that take one of the red
plugs, and sometimes have a passthru for another one with a lot of
normal outlets on it that are the water resistnat variaty with
individual RCD's on each outlet. There is a not often followed rule of
one outlet per tool.

If you want to see bad electrical practices, have a look into how they
do things in china. Apparanlty mains plugs cost too much, so its common
practice to jam wires into the mains socket, then force a plug into it
to hold them there.. And they try that when they get here and discover
that most sockets have no plastic barrier inside them between the pins
and a wire moving around in there will usually find both the live and
the earth/neutral.. oops.. hehe


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