topic Re: how to represent copper bar with different section wires in AutoCAD Electrical Forum

how to represent copper bar with different section wires

Anonymous — Thu, 28 Mar 2019 08:11:43 GMT

Hi all

Can someone help me to represent this kind of schema ?

and to generate a correct from-to wire report ?

Phisically diode katodes are joint together with a copper bar (no wire number)

snabber RC is connected to katodes "bus bar" with 2,5mm^2 wire

and katodes output are wired 70mm^2

- The easy "visual" solution is like 1st picture, BUT all drawn wires are the same color/wire layer and same number. If edited all wires goes to same layer, can not separate , on real installation different wire section = same wire number but different wire section, and report is not correct for that solution. 😞

- The 2nd solution is to place a "juntion bar", BUT obviosly different conections will be different numbering , and another problem is that if placed "juntion bar" with no wire to katodes, report does not represent/detect that junction. if wire is placed together extra wire numbering is generated. 😞

Re: how to represent copper bar with different section wires

Anonymous — Thu, 28 Mar 2019 08:13:46 GMT

Re: how to represent copper bar with different section wires

Icemanau — Thu, 28 Mar 2019 23:38:27 GMT

If it's always going to be the same number of Diodes, then you can just make one block which includes those diodes & the copper bare with the appropriate connection points on the diodes and a indication for a screw terminal for the wire connected to the bar.

Same if it's just a small number of variations to the number of diodes.

To get all the proper part numbers, you set up a catalogue entry with the appropriate number of diodes as sub assembly items for each variation. Thus you don't loose anything from the BOM.

Regards Brad

Re: how to represent copper bar with different section wires

rhesusminus — Thu, 11 Apr 2019 21:49:15 GMT

Can you use the "junction bar" option, and put an internal jumper on it, making sure all wires you want to will receive the same wire number?

If I understand correctly, you want all the 2.5mm2 wires to have the same wire number?

Re: how to represent copper bar with different section wires

Anonymous — Fri, 12 Apr 2019 06:44:35 GMT

The problem is not the drawing, just wiring reports.

I am looking to print/report different wire section on same juntion.

- I found solution wiring from component terminal, not drawing junctions on middle wire.

If I use normal angled or juntion point , when one wire is changed (from 2,5 to 4mm^2) all conected wires change its layer to the same section. Drawing is more clear but this is an issue for me.

For example in that diode bridge, I came from power transformer with 35..50..70mm^2 but parallel snabber RC only needs 2,5mm^2 , but junction point is the same and wires must share same number. Sure you understand.

- in case of drawing a block, the problem is all parts has its factory internal code when purchase , and a block has only a CAT description.

Probably it is better with new drawing method/rules , but can not change that rules because it affect other departments.

Re: how to represent copper bar with different section wires

rhesusminus — Fri, 12 Apr 2019 06:49:08 GMT

So, you have several wires, of different sizes, that all should connect to the same connection point. And, they should all have the same wire number?

Re: how to represent copper bar with different section wires

Anonymous — Fri, 12 Apr 2019 13:07:10 GMT

yes

Re: how to represent copper bar with different section wires

rhesusminus — Mon, 22 Apr 2019 16:33:24 GMT

If you draw like this, you can have different "wire types"/busbars and keep the same wire number for them all:

Looks good in the reports as well: