Well folks, it's that time of the week again!
There is not much of an explanation required for this picture.
There is not much of an explanation required for this picture.
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Picture of the week!™
- Thread starter RF Lighting
- Start date
Horrible exposed busbar (or did you remove the barrier?)
not enough RCBOs
wrong size hammer used to "tool and form" busbar to fit that one device (how difficult can it be to find MK devices?)
edited - those are 2pole devices at the end by the timer, right? shame they aren't MK. Have they been cobbled together? I can't make out what they're doing. Are they contactors for heating or something? Are they on a 3P circuit?
wrong size hammer used to "tool and form" busbar to fit that one device (how difficult can it be to find MK devices?)
edited - those are 2pole devices at the end by the timer, right? shame they aren't MK. Have they been cobbled together? I can't make out what they're doing. Are they contactors for heating or something? Are they on a 3P circuit?
I removed the busbar sheild for the picture.
I'm not certain what the clock / contactors are for. I think it was some garden lighting.
This was a domestic SP/N installation.
I'm not certain what the clock / contactors are for. I think it was some garden lighting.
This was a domestic SP/N installation.
Its the "just use whatever I've got on the van" syndrome 
Surely that's not a problem once the lid and blanks are in place as long as a tool is required to remove it? Assuming it also meets the correct IP rating of an enclosure.
The busbar should never be live when the lid is removed so shouldn't create a hazzard (even if the shield had been removed or misplaced).
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Yeee-Haaah!
It is generally reccomended that RCD tests be done from the board (and in the case of say RCBOs feeding fixed equipment you may have little choice but to do them from the board), you can't really do that without having the board cover off with the board live. Also in a commercial situation it may be nessacery to add/remove circuits without isolating the entire board (yes you will expose some live metal when you remove a breaker or blank from a live board but the less exposed live metal the better). Also if computer equipment is involved you may want to minimise the number of on/off cycles (one problem is you can go round shutting down all the computers but some of them may be set to auto boot after the power is turned off and back on even if they were turned off when the power went out).
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Lack of red sleeving too, I notice.
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