Electrical CAD drawings order

alexbeatle

Member
A
Join Date
Feb 2010
Location
San Francisco
Posts
188
Hi!

This maybe a non-PLC-programming-question, but still related to PLC.

What is the typical electrical CAD drawings order in a set for a single machine? Is there a North American standard which dictates, which drawing goes first? Ex. Power distribution, safety, PLC I/O, electric panel mounting overview, etc.?

Thank you,

Alex
 
Apparently, we're free to do what we want in Australia too. Over the years I've divided it into:

Project Info
Power/Supply
Network
PLC and I/O
Other

I have seen many larger companies have separate drawings and codes for each section. This usually comes from plant-wide practices rather than small machines.
 
My sequence of drawing is similar to JaxGTO's with one important difference. I separate the Bill of Materials (BOM) from the drawings, making it a separate letter sized document. This is the way most large manufacturers do it. First, this allows a lot more descriptive info and vendor data on the BOM than can be conveniently included on a drawing. Second, it frees up drawing space for more graphics. Third, it means changes (like vendor part numbers) can be made by anyone, not just a draftsman. Fourth, it simplifies linkage to data bases for pricing, inventory, etc. Finally, a lot of people need BOM info but not the drawing - for example purchasing and receiving.

This sequence is just a convention used by many companies and is not a standard in the true sense of the word.
 
Last edited:
What we usually do:

Title page with project info.
Page Index.
Applied Standards.
Power Supply
Motors - fuses + contacts
Contactors + solenoid valves
Safety devices
Safety Circuit
PLC main components (PS + CPU + HMI + switch)
PLC CPU inputs
PLC CPU outputs
Additional in/outputs
parts list
fuse list
panel layout
cable list
terminal list
 
Is there a North American standard which dictates, which drawing goes first? Ex. Power distribution, safety, PLC I/O, electric panel mounting overview, etc.?
Click to expand...
There are standards, procedures, guidelines, and recommendations. If you are doing government contracts, there is the UFGS (United Facilities Guide Specifications), a set of Divisions and Categories for use on contracts, drawings, and proposals, starting at 0 - Contracts and Proposals, and running up to 100. New categories are added all the time, and each user tends to add and modify their own sub-sub categories. Here is a link to all this junk:

http://www.wbdg.org/ccb/browse_cat.php?c=3

Here is a list of the categories for Division 26 Electrical (back in the old days Electrical was Division 16, but things change). If you were numbering your electrical drawings according to this, you number would start with "26", followed by some long series that includes the details. Don't blame me, I didn't invent this, but you asked for it.

DIVISION 26 - ELECTRICAL
26 00 00.00 20 07/06 BASIC ELECTRICAL MATERIALS AND METHODS
26 05 00.00 40 08/13 COMMON WORK RESULTS FOR ELECTRICAL
26 05 13.00 40 11/13 MEDIUM-VOLTAGE CABLES
26 05 19.00 10 11/08 INSULATED WIRE AND CABLE
26 05 33 01/07 DOCKSIDE POWER CONNECTION STATIONS
26 05 48.00 10 10/07 SEISMIC PROTECTION FOR ELECTRICAL EQUIPMENT
26 05 70.00 40 02/15 HIGH VOLTAGE OVERCURRENT PROTECTIVE DEVICES
26 05 71.00 40 02/14 LOW VOLTAGE OVERCURRENT PROTECTIVE DEVICES
26 08 00 08/08 APPARATUS INSPECTION AND TESTING
26 09 13 11/08 POWER MONITORING SYSTEM
26 09 23.00 40 08/13 LIGHTING CONTROL DEVICES
26 11 13.00 20 04/07 PRIMARY UNIT SUBSTATION
26 11 14.00 10 10/07 MAIN ELECTRIC SUPPLY STATION AND SUBSTATION
26 11 16 02/10 SECONDARY UNIT SUBSTATIONS
26 12 19.00 40 11/14 PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE
TRANSFORMERS
26 12 19.10 02/12 THREE-PHASE PAD-MOUNTED TRANSFORMERS
26 12 21 11/13 SINGLE-PHASE PAD-MOUNTED TRANSFORMERS
26 13 00 11/14 SF6/HIGH-FIREPOINT FLUIDS INSULATED PAD-MOUNTED
SWITCHGEAR
26 13 01 08/13 PAD-MOUNTED DEAD-FRONT AIR INSULATED SWITCHGEAR
26 18 23.00 40 08/13 MEDIUM-VOLTAGE SURGE ARRESTERS
26 20 00 02/14 INTERIOR DISTRIBUTION SYSTEM
26 22 00.00 10 10/07 480-VOLT STATION SERVICE SWITCHGEAR AND
TRANSFORMERS
26 23 00.00 40 11/14 SWITCHBOARDS AND SWITCHGEAR
26 23 00 07/06 SWITCHBOARDS AND SWITCHGEAR
26 24 16.00 40 08/13 PANELBOARDS
26 24 19.00 40 11/14 MOTOR CONTROL CENTERS
26 27 13.10 30 10/07 ELECTRIC METERS
26 27 14.00 20 02/11 ELECTRICITY METERING
26 27 29 04/06 MARINA ELECTRICAL WORK
26 28 00.00 10 10/07 MOTOR CONTROL CENTERS, SWITCHBOARDS AND
PANELBOARDS
26 28 01.00 10 10/07 COORDINATED POWER SYSTEM PROTECTION
26 28 21.00 40 08/14 AUTOMATIC TRANSFER SWITCHES
26 29 01.00 10 11/08 ELECTRIC MOTORS, 3-PHASE VERTICAL INDUCTION TYPE
26 29 02.00 10 11/08 ELECTRIC MOTORS, 3-PHASE VERTICAL SYNCHRONOUS
TYPE
26 29 23 04/06 VARIABLE FREQUENCY DRIVE SYSTEMS UNDER 600 VOLTS
26 32 13.00 20 04/07 SINGLE OPERATION GENERATOR SETS
26 32 14.00 10 02/10 DIESEL-GENERATOR SET, STATIONARY 15-300 KW,
STANDBY APPLICATIONS
26 32 15.00 10 10/07 DIESEL-GENERATOR SET STATIONARY 100-2500 KW,
WITH AUXILIARIES
26 32 33.00 10 10/07 UNINTERRUPTIBLE POWER SUPPLY (UPS) SYSTEM ABOVE
15 KVA CAPACITY
26 33 53.00 20 04/08 UNINTERRUPTIBLE POWER SUPPLY (UPS)
26 35 33.00 40 08/13 POWER FACTOR CORRECTION EQUIPMENT
26 35 43 05/11 400-HERTZ (HZ) SOLID STATE FREQUENCY CONVERTER
26 36 00.00 10 10/07 AUTOMATIC TRANSFER SWITCH AND BY-PASS/ISOLATION
SWITCH
26 36 23.00 20 04/06 AUTOMATIC TRANSFER SWITCHES
26 41 00 11/13 LIGHTNING PROTECTION SYSTEM
26 42 13.00 20 04/06 CATHODIC PROTECTION BY GALVANIC ANODES
26 42 14.00 10 08/09 CATHODIC PROTECTION SYSTEM (SACRIFICIAL ANODE)
26 42 15.00 10 02/13 CATHODIC PROTECTION SYSTEM (STEEL WATER TANKS)
26 42 17.00 10 11/08 CATHODIC PROTECTION SYSTEM (IMPRESSED CURRENT)
26 42 19.00 20 04/06 CATHODIC PROTECTION BY IMPRESSED CURRENT
26 42 19.10 11/08 CATHODIC PROTECTION SYSTEMS (IMPRESSED CURRENT)
FOR LOCK MITER GATES
26 42 22.00 20 01/08 CATHODIC PROTECTION SYSTEM FOR STEEL WATER TANKS
26 51 00.00 40 02/13 INTERIOR LIGHTING
26 51 00 07/07 INTERIOR LIGHTING
26 52 00.00 40 08/14 EMERGENCY LIGHTING
26 53 00.00 40 11/08 EXIT SIGNS
26 54 21.00 10 10/07 HELIPAD LIGHTING AND VISUAL NAVIGATION AIDS
26 55 53.00 40 11/14 SECURITY LIGHTING
26 55 80.00 20 04/06 SURGICAL LIGHTING FIXTURES
26 56 00 05/13 EXTERIOR LIGHTING
26 56 13.00 40 11/14 LIGHTING POLES AND STANDARDS
26 56 19.00 40 05/13 ROADWAY LIGHTING
26 56 20.00 10 10/07 AIRFIELD AND HELIPORT LIGHTING AND VISUAL
NAVIGATION AIDS
26 56 23.00 40 11/08 AREA LIGHTING
26 56 36.00 40 02/13 FLOOD LIGHTING
26 60 13.00 40 11/11 LOW-VOLTAGE MOTORS
Click to expand...
 
Oh dear god, it makes me want to curl up in a corner and whimper when I realise how much money someone must have gotten paid to come up with all of that :cry:
 

Similar Topics

J
AutoCad for electrical drawings line numb.ers
I use the non-electrical version of autocad. I am looking for a way to modify all of the line numbers at once. It would be great if I could make...
2
Replies
15
Views
6,641
shooter
S
S
electrical cad drawings (point i/o)
hi guys , i have autocad and i need to update our drawings, i have fitted 3 x point i/o to a machine i would like to get wiring diagram of the...
Replies
5
Views
8,604
stu
S
B
Autocad drawings for electrical cabinets
HEllo! ANyone have or know where i can get some free Arc blocks for Autocad? I am interested in getting some for cabinet drawings. Contactors VFD...
Replies
7
Views
6,559
TConnolly
TConnolly
G
Autocad Electrical headaches with DIN rail.
Why is my DIN rail not scaled to my drawing?
Replies
4
Views
354
Jeev
Jeev
M
OT: AutoCAD Electrical Training Course Recommendationd
Hi Expert: I have used EPlan at previous job, now in the new job they use AutoCAD Electrical, just finished one training at Udemy, it is not good...
Replies
7
Views
1,132
NetNathan
N
Back
Top Bottom