Evidence of rising incompetence in my field.

Even marked cables mean nothing if you have nothing to refer them to, it only speeds up identifying the 2 ends and some numbering systems on add confusion to the problem in MHO as they were labelled by an idiot in design.

20 grey cables?.. try 400-500 with rear panel routed cores to hinder physically tracing them... hate the old panels that have all the cables routed on the rear of the chasis plate with no access and as they are routed and string tied you can't tug and locate

darkwood said:

Even marked cables mean nothing if you have nothing to refer them to, it only speeds up identifying the 2 ends and some numbering systems on add confusion to the problem in MHO as they were labelled by an idiot in design.

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I'm relatively new here so maybe a little background.
I work for a fairly large multinational corporation. Mainly what my bit of that does is variable speed drives and drive systems. Our customer base is primarily in the industrial sector including petrochem.
To that extent I may come at this from a different angle to some others here.

Everything we do has to be documented to the nth degree. Drawings have to have final approval from the client before the build phase can legitimately commence. Every revision of the drawings have to be retained and revisions clearly marked. All conductors and terminals are numbered. All fitted components are identified with a label that corresponds to the drawings. Certificates of conformity, certificates of origin.......the whole nine yards....I could go on.

Marked (numbered) conductors are essential. Not just because they are a contractual requirement. It would be night on impossible to be accurate at the build stage and during testing/faultfinding. Maybe not so much on the power side. But on the controls - one black 1.0mm[SUP]2[/SUP] looks like any other black 1.0mm[SUP]2[/SUP]. So mark them we do.

And we try not to employ idiots at the design stage......

So, I'm not entirely in agreement with your point about cable marking.

But I am with you on your other thread about dumbing down.

Hi,
DW, 400-500! I'll leave that to you, looks like i've only played with baby ones.

Regards.

darkwood said:

Even marked cables mean nothing if you have nothing to refer them to, it only speeds up identifying the 2 ends and some numbering systems on add confusion to the problem in MHO as they were labelled by an idiot in design.

20 grey cables?.. try 400-500 with rear panel routed cores to hinder physically tracing them... hate the old panels that have all the cables routed on the rear of the chasis plate with no access and as they are routed and string tied you can't tug and locate

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nothing like laughing at other sparks when they are hitting the cables with blocks of wood to try to get the lid on lol.

last big job we did had at least 10 panels with say 200+ beldens in each in one building.

we usually have multiple panels instead of one big one.

I like them because we use a magical item called panel trunking that a lot of people dont seem to have heard of, it would make many a db a lot neater and very cheap.

ill be honest I struggle more with 50 cat6 cables on 3" basket on a wall than a couple hundred beldens.

panel drawings are useless because there either missing or wrong

I’ve only ever worked for multinationals and never had a problem with core identification in panels, even in 50 year old gear.

It was in our terms and conditions. If you don’t issue a specification then tough luck, it’s your fault!
We had preferred suppliers that knew our standard.

Clive P said:

Hi,
DW, 400-500! I'll leave that to you, looks like i've only played with baby ones.

Regards.

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This is not an uncommon sight to me ... when you get used to faulting these you tend to get a 6th sense ....I have quite a sharp analytically thinking mind now and can fault these with any plans and just using my head no pen and paper etc .... Yes a lot of the time I have to walk away as its clear the customer is not willing to pay.

I used the hate getting called to machines like that, never seen it before and expected to get it working in a couple of minutes.

Robotstar5 said:

I used the hate getting called to machines like that, never seen it before and expected to get it working in a couple of minutes.

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That is truly horrible,

My pet hate with all panels is the inability for the last fault finding engineer not putting the slotted trunking lid back on! Really boils my nuts grrrrr