How to best represent revised wiring diagrams

[philly]

I'm looking for ideas on how to best represent revised wiring diagrams for a project that will involve rewiring devices that are wired back to existing terminal blocks. I have all of the existing wiring diagrams and need to represent the demo wiring and revised wiring for a contractor to be able to re-wire the control cabinets.

Everyone here always seems to have great ideas on how to approach things so I figured I'd see if anyone has any experience/ideas for best practices.

For example is it best to show existing wiring diagram with and hatch out existing wiring and then show revised wiring diagram representing revised wiring? Or is there a better way to represent this all on one drawing?

Does anyone have any examples that they would be willing to share?

Thanks!

 

[mgookin]

I'm looking for ideas on how to best represent revised wiring diagrams for a project that will involve rewiring devices that are wired back to existing terminal blocks. I have all of the existing wiring diagrams and need to represent the demo wiring and revised wiring for a contractor to be able to re-wire the control cabinets.

Everyone here always seems to have great ideas on how to approach things so I figured I'd see if anyone has any experience/ideas for best practices.

For example is it best to show existing wiring diagram with and hatch out existing wiring and then show revised wiring diagram representing revised wiring? Or is there a better way to represent this all on one drawing?

Does anyone have any examples that they would be willing to share?

Thanks!

Can you use 2 different line weights/ colors and have on one plan "Existing to Remain" and "Existing to be Removed" then on the 2nd sheet "Existing" and "New"?

I'd use the heavier weight/ darker color for the work to be done and lighter weight/ grey for existing to remain on both sheets.

 

[Ingenieur]

sounds like moving one wire from a terminal to a new terminal
I like a schedule in excel
item...from...to
1....TB1-1....TB1-3
2....TB1-4....TB2-3
etc
also serves as a checklist

as far as the drawings basically as-built them

the idea of bold/light is also good
sometimes 2 drawings works: a demo and a build set

 

[gadfly56]

sounds like moving one wire from a terminal to a new terminal
I like a schedule in excel
item...from...to
1....TB1-1....TB1-3
2....TB1-4....TB2-3
etc
also serves as a checklist

as far as the drawings basically as-built them

the idea of bold/light is also good
sometimes 2 drawings works: a demo and a build set

Always the best way to go. Pull out the old and then put in the new. Any errors are the responsibility of the engineer!

 

[just the cowboy]

Cloud

Cloud

ACAD has a cloud feature that lets you draw a cloud around reworked stuff so you know it is not original.
Demo and as built prints are the way to go but keep a set of old prints so if something don't work as expected at startup you can go and see how it was hooked up.

 

[gadfly56]

ACAD has a cloud feature that lets you draw a cloud around reworked stuff so you know it is not original.
Demo and as built prints are the way to go but keep a set of old prints so if something don't work as expected at startup you can go and see how it was hooked up.

I would add to that that if the wiring in the field doesn't match what's on the drawing stop work immediately and get clarification from the engineer or someone you can share the dog house with if there's an oops!