Ran into this today at a facility..
Ain't it beautiful?
Crazy!!
Keith Cress
kcress -
Ain't it beautiful?
Crazy!!
Keith Cress
kcress -
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Ain't it beautiful? 4
- Thread starter itsmoked
- Start date
EdStainless
Materials
But there is still space on the right hand side to cut more holes and install more stuff .......
Hand grenade time.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
Hand grenade time.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
oldfieldguy
Electrical
Prior to joining my present employer I was retained as a contractor to investigate problems at a facility that had 'lightning' issues, losing random field devices, reliability issues, etc.
They were talking about drastic dollars to further lightning-proof the facility.
Visiting the site, the first control cabinet I opened looked like this, as did subsequent equipment cabinets. Wiring was a mess, as was equipment grounding and bonding.
I rendered a report that basically said "Bring the present installation up to a workmanlike condition, do a few things to properly ground and bond equipment, and THEN we'll talk about the BIG bill.
They did as the report suggested. That was fifteen years ago. No significant issues 'lightning-related' since then.
old field guy
They were talking about drastic dollars to further lightning-proof the facility.
Visiting the site, the first control cabinet I opened looked like this, as did subsequent equipment cabinets. Wiring was a mess, as was equipment grounding and bonding.
I rendered a report that basically said "Bring the present installation up to a workmanlike condition, do a few things to properly ground and bond equipment, and THEN we'll talk about the BIG bill.
They did as the report suggested. That was fifteen years ago. No significant issues 'lightning-related' since then.
old field guy
I did the plans for a multi-building project.
The owners turned the contractor loose with no supervision.
I used 480 Volt distribution and local transformers to step down to 120/240 at each building.
Local grounds at each building/transformer.
We had an arcing failure on a transformer primary.
I was not involved in the diagnosis and repair.
Lightning was blamed, as well as the fact that this would not have happened if I had specified a grounding conductor with the feed conductors.
Because the contractor had ignored my conduit sizing, the conductors and conduit were dug up and replaced including a grounding conductor.
Really?
Lightning damage at the end of a couple of hundred feet of buried cable and no storm?
Later I was doing another project with the same electricians.
I checked their feeder connections.
Their terminal torque could be described as; "Hand tight and then back off a quarter turn".
Was it purposeful to generate extra work or gross incompetence?
With those boys, including the contractor, it may have been either, 50/50.
Bill
--------------------
"Why not the best?"
Jimmy Carter
The owners turned the contractor loose with no supervision.
I used 480 Volt distribution and local transformers to step down to 120/240 at each building.
Local grounds at each building/transformer.
We had an arcing failure on a transformer primary.
I was not involved in the diagnosis and repair.
Lightning was blamed, as well as the fact that this would not have happened if I had specified a grounding conductor with the feed conductors.
Because the contractor had ignored my conduit sizing, the conductors and conduit were dug up and replaced including a grounding conductor.
Really?
Lightning damage at the end of a couple of hundred feet of buried cable and no storm?
Later I was doing another project with the same electricians.
I checked their feeder connections.
Their terminal torque could be described as; "Hand tight and then back off a quarter turn".
Was it purposeful to generate extra work or gross incompetence?
With those boys, including the contractor, it may have been either, 50/50.
Bill
--------------------
"Why not the best?"
Jimmy Carter
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2
- #7
MacGyverS2000
Electrical
- Thread starter
- #9
It closes with extreme prejudice. It works usually but those top two controllers don't light up so it's unclear if they are operating blind or dead as doornails. The machine is complex and old so until it starts failing in its mission nobody is willing to venture forth.
Ah, maybe they'll have me replace it eventually.
I'd probably drop in a PLC with a large touch screen. I've put in five control systems with 4 inch full color touch screens (inexpensive) and then the last machine I did I put in an 8" ($$$) screen simply because I couldn't fit the job on a 4".
This week I was asked to build a sixth unit (when I was humorously shown the above monster) and they said, "And make sure it has the BIG screen!"
Keith Cress
kcress -
Ah, maybe they'll have me replace it eventually.
I'd probably drop in a PLC with a large touch screen. I've put in five control systems with 4 inch full color touch screens (inexpensive) and then the last machine I did I put in an 8" ($$$) screen simply because I couldn't fit the job on a 4".
This week I was asked to build a sixth unit (when I was humorously shown the above monster) and they said, "And make sure it has the BIG screen!"
Keith Cress
kcress -
Compositepro
Chemical
Has any touch screen lasted more than 10 years?
- Thread starter
- #12
Good question Dan.
Comp I have several that are getting close to 10 years. Can't say about 10 years or not yet.
I tend to make the screen backlights go out when not in use. I see that as the most likely failures. No reason for an LCD to die in 10 years. The power supplies are external so a lot less is available to croak.
Keith Cress
kcress -
Comp I have several that are getting close to 10 years. Can't say about 10 years or not yet.
I tend to make the screen backlights go out when not in use. I see that as the most likely failures. No reason for an LCD to die in 10 years. The power supplies are external so a lot less is available to croak.
Keith Cress
kcress -
analogkid2digitalman
Electrical
I don't see a single green wire (typically earth ground) in that enclosure.
-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"It's the questions that drive us"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"It's the questions that drive us"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I think ground is running along the right hand wall of the box, and the camera angle is hiding one of the two screw terminal strips that are normally used for ground connections.
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
-
1
- Thread starter
- #15
Analog, ohh you of little faith...
Anyone can see the well thought out grounding plan that's meticulously implemented.
Further demonstration of the quality work!
Note even the detailed effort put forth as demonstrated by the tidy wire-nut application (left most).
And, while you have me wound-up let me show you the workman-like documentation provided.
Keith Cress
kcress -
Anyone can see the well thought out grounding plan that's meticulously implemented.
Further demonstration of the quality work!
Note even the detailed effort put forth as demonstrated by the tidy wire-nut application (left most).
And, while you have me wound-up let me show you the workman-like documentation provided.
Keith Cress
kcress -
EdStainless
Materials
Wire tags and notes on the box, wow. They out did themselves.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
Quite ingenious.
That's a very thoughtful effort at color coding using orange tape on the blue and red conductors in the middle photograph deserves honorable mention.
Compared to the inevitably missing comments files that one deals with with PLCs, the in-situ subpanel grafitti documentation in indelible marker has a certain, shall we say, appeal?
The whisker hanging out of the orange wire nut is undoubtedly labeled a 'test point' somewhere in the 'documentation'.
Keith, you're the Good Humor man today.
That's a very thoughtful effort at color coding using orange tape on the blue and red conductors in the middle photograph deserves honorable mention.
Compared to the inevitably missing comments files that one deals with with PLCs, the in-situ subpanel grafitti documentation in indelible marker has a certain, shall we say, appeal?
The whisker hanging out of the orange wire nut is undoubtedly labeled a 'test point' somewhere in the 'documentation'.
Keith, you're the Good Humor man today.
LittleInch
Petroleum
I like the fact that the connector marked "ALARM" have no wires connected (!)
The blue connector in the middle photo also appears to have the orange wire cut off?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
The blue connector in the middle photo also appears to have the orange wire cut off?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
I think that's orange electrical tape
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
- Thread starter
- #20
Dan! Test point.. I hadn't realized that. Good observation.
LI; That's because it's a 'silent alarm'.
Keith Cress
kcress -
LI; That's because it's a 'silent alarm'.
Keith Cress
kcress -
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