1. SCOPE…………………………………………2. REFERENCES ………………………………3. DRAWING SETUP AND ELEMENTS……………3.1
SABIC CAD Standard………………………
4 GUIDELINES ………………………………………
4.1
Preparation and Revision of Drawings
4.2
Handling of Drawings…………………………
4.3
Requesting Drawings…………………………
4.4
Submittal of Documentation……..…………
1.
SCOPE
The purpose of this standard is to specify the requirements for development and modification
of SABIC and its affiliates Engineering drawings/documents while maintaining their uniformity
and integrity.
It shall be made clear that any deviation of the requirements of this standard will not be
acceptable unless agreed by SABIC E&PM.
SABIC E&PM will provide all required application Seed files. Any changes to these Seed files
will not be acceptable unless agreed by SABIC E&PM.
Respective Affiliate Symbology and Abbreviations shall be used for Modification to existing
Units/Facilities and Debottlenecking Projects. The Symbology and Abbreviation given in SABIC
Standard Seed files as per SES# D01-G02 shall be used for Expansion Projects and Grass
Root Plants with the exception that any tie-ins in existing Units / Facilities will use respective
affiliate symbology.
2.
References
Reference is made in this standard to the following documents. The latest issues, amendments
and supplements to these documents shall apply unless otherwise indicated
SABIC Engineering Standard (SES)
D01-G02
Document and Data Handover Guidelines
D03-D01
Drawing & Document Numbering System
D03-D02 Equipment Numbering System
D03-D03
Instrument Numbering System
D03-D04 Pipeline Numbering System
D03-D05 Electrical Equipment, Communication & Fire Alarm Numbering System
D03-D06
Telecommunication Equipment Numbering System
D03-D07 Building Numbering System
D04-G01 Guidelines for Process Flow Diagram Preparation
D04-G02 Guidelines for Piping and Instrument Diagram Preparation
D04-G03 Guidelines for Development of Utility Flow Diagrams
D04-G04 Guidelines for P&ID’s Issues and Contents Information.
D04-G05 Guidelines for Instrumentation & Control Drawings Preparation
D04-G06 Guidelines for Electrical Drawings Preparation
D04-G07 Guidelines for Plot plan Preparation
D04-G08 Guidelines for Piping Drawing Preparation
D04-G09 Guidelines for Civil Drawings Preparation
D04-G10 Guidelines for Structural Drawings Preparation
D04-G11 Guidelines for Architectural Drawings Preparation
D04-G12 Guidelines for Building and Mechanical Drawings Preparation
3. Drawing Setup and Elements
An engineering drawing is a means of communication. It must be clear, legible, accurate and
clean.
3.1 SABIC CAD Standard :
SABIC CAD Standard is a customized working Environment developed using
Microstation, Workspace.
This contains the following :
Application Seed Files
DGN Libraries
Cell Libraries
3.1.1 Application Seed Files
The following application Seed Files for Different Discipline are available.
| Discipline | Seed Files |
| SABICprocess | PID HDS.dgn |
| PFD.dgn | |
| SABICelectical | Area Classification 200 scale.dgn |
| Area Classification 100 scale.dgn | |
| Grounding Power Lighting Layouts 100 scale.dgn | |
| Grounding Power Lighting Layouts 200 scale.dgn | |
| One Line Diagram.dgn | |
| SABICplotplan | Area Plot plan 100 scale.dgn |
| Area Plot plan 200 scale.dgn | |
| General Plot Plan 2000 scale.dgn | |
| SABICcivilstructural | Layout 100 scale.dgn |
| Layout 200 scale.dgn | |
| Survey and Topographic maps 1000 scale.dgn | |
| UG Facilities drawings 100 scale.dgn | |
| UG Facilities drawings 200 scale.dgn | |
| SABICarchitectural | Layout 100 scale.dgn |
| Layout 200 scale.dgn | |
| HVAC layout 100 scale.dgn | |
| HVAC layout 200 scale.dgn | |
| SABICpiping | Layout 50 scale.dgn |
| Isometric.dgn | |
| Fire fighting 50 scale.dgn | |
| SABICinstrumentation | Layout and location plan 100 scale.dgn |
| Layout and location plan 200 scale.dgn | |
| ILDS.dgn | |
| Logic diagrams.dgn | |
| SABICgeneral | Section and Detail Seed file for A1 & A3 on 20,25 & 50 Scale |
The Seed file include the following
3.1.1.1
Drawing Border and Title Block
Prototype Drawing sheets for each size complete with Border lines
and Title Block are available. This include the following :
Drawing Sizes
Use of A0 size is restricted to be used only on Authorization
from SABIC E&PM.
Drawing Scale
Engineering drawings shall be drafted to scale. Metric drafting
scales in multiples of 1:2, 1:5 and 1:10 shall be adopted as
standard. Graphic scales shall be shown on all plot plans and
layouts, and shall be placed to the left of the title block. Scale/s
used shall be shown also in the title block.
No scales shall be used for Piping Isometric drawings, One Line
Diagrams,P & ID’s, PFD’s, etc.
Drawing Number and Revision
Immediately after completing a drawing, it shall be given a
unique identification number and displayed in its proper space
within the title block Refer to SES D03-D01 for Drawing and
Document Numbering System.
File Naming Convention
The electronic file naming of all drawings should be in line with
SES D03-D01 and as follows.
Contractors Logo
Engineering Contractors name Logo Revision Block etc shall be
placed in the area provided.
Drawing Layout
This shows the space allocation for various information in the drawing
sheet. This include the following :
3.1.1.2
Key Plan
To facilitate orientation of area plans, a key plan should be used
whenever practical. The hatched area on the key plan shall
indicate the corresponding area shown on that particular sheet.
Key plan should be located in the upper right-hand corner of the
sheet above the title block.
General / Construction Notes
Further information and instructions related to the drawing on
the sheet shall be included in this section located just below the
key plan (if any). This information include but shall not be limited
to the following;
a) Drawing units used for dimensions and elevations.
b) Reference benchmarks.
c) Materials specifications.
d) Codes and Standards used.
e) Specific instructions to construction personnel.
Legend
This provides explanation of Special symbols and conventions
used on the drawing.
Reference Drawings
Reference drawings shall be placed in a table that includes
columns for drawing number and title located in the space just
above the title block.
3.1.2 DGN Libraries :
DGN Libraries contains data that is shared throughout files and among users. This
consist of the following :
3.1.2.1 Units of Measurements
The units of measurement shall be prepared using metric (SI) units of
measurement.
The exceptions to the above are pipe sizes, wall thickness and
corrosion allowance, flange ratings, pipe threads, anchor bolts, rebar
sizes, electrical conduit sizes, wire sizes, bolting and structural steel
sizes and weights depending on source of supply. English system
units in accordance with ANSI standards shall be used for these items.
3.1.2.2 Line Types
All line types used in the production of engineering drawings should be
uniform, sharp, and opaque.
C.O.D.s and Match Lines
All drawings must have C.O.D.s (Continued on Drawing Number)
marked on all interface points of the four sides of drawings. Similarly,
all match lines (interface lines between drawings) must be given
appropriate coordinates. If the new plant is designed close to an
existing plant, no new drawings for existing plant shall be made
without approval from E&PM . Instead, the existing drawings shall be
revised wherever possible.
All isometric shall have continuity from the first isometric to the last
marked. The isometric shall also show drawing numbers of
orthographic marked by phantom lines.
3.1.2.3 Line Weight / Width
Using line weights, heavy and thin lines are created to show cuts in
sections, depth in elevations, dimension lines etc.
3.1.2.4 Level Structure
CAD System allows virtually unlimited levels. These levels are used
to separate information within CAD drawing with each level operating
like a transparent sheet. Each level may be locked, freeze, made
visible, invisible or printed independently.
Fonts
For clarity, lettering shall use Microstation “Arial” font.
3.1.2.5
3.1.2.6 Dimension
Dimensions are considered as one of the most important elements of
an engineering/construction drawing and must therefore be clear and
unobstructed by other objects on the drawing. This includes dimension
lines with Arrows, Dimension Text and Dimension Extension Lines.
The project coordinates control system and elevations will contain
whole numbers and decimal fraction of meters.
The appropriate unit of measure shall be defined by a note on the
drawing. This note shall be covered in the General Notes: “All
dimensions are in millimeters unless otherwise specified”.
Dimensions shall be shown in one location only on the drawing and
referenced on other drawings or details as necessary for clarity.
Repetition of the same dimensions on the same sheet should be
avoided. Dimensions crossing match lines shall be repeated on the
matching sheet so each will be complete.
Dimensions that are out of scale shall be underlined. However, every
effort shall be made to keep drawings to accurate scale
3.1.2.7 Customized Tool Box.
This contains the following
North Arrow
The standard plant grid North Arrow shall be displayed in the
upper left hand corner of drawing sheets for plan / layout
drawings. The North Arrow shall never be pointed downwards. It
shall only be oriented upward or to the left when 90 degree
rotation of the plan / layout is dictated by space limitation.
Section and Details
Sections: In all cases, section drawings shall be designated by
capital letters in consecutive sequence such as A, B, C (omit the
letters I, O, Q and S) from left to right and top to bottom of the
sheet on which they are drawn.
Care must be taken to show only the objects cut by the plane
along the section line to avoid confusion on the part of the
reader. If other objects have to be shown to establish
relationship, they shall be drawn in dashed lines and properly
annotated.
Cross Sections: Earthworks and road sections shall be
specifically referred to here as cross-sections. As a standard
practice, sections along long earthwork and road lines shall only
be referred to by station numbers indicated along the line .
Section drawings shall be based on a plane normal to the
longitudinal axis of the line and shall be viewed looking ahead on
the line.
Details: The orientation of a detailed drawing shall be the same
as that from the view where it is identified. Where practical, the
detail location view and the detail drawing itself shall be drawn
as close to each other as possible.
Portions of a drawing that need to be detailed shall be encircled
and this circle shall be connected by a normal size leader to the
appropriate detail symbol depending on whether the symbol and
the detail drawing itself are located on the same sheet or on
different a sheet.
In contrast with sections, details shall be designated by numbers
instead of letters and shall be listed consecutively like 1, 2, 3
from left to right and from top to bottom on the sheet on which
they are drawn.
Standard Details: Where standard details are used in a
design/contract package, they should be designated by numbers
in a hexagonal symbol. The serial number of the standard detail
drawing shall be shown at the bottom half of the symbol for cross
referencing.
In the cross-referencing of sections and details, putting only the
serial number of the referenced drawing assumes that both
drawings have identical plant and drawing type codes. In cases
where they differ, the complete detail drawing number must
instead be referenced.
Slope and Batter: Batter of structural members or surfaces in
elevation and section shall be shown.
Slope of concrete decks etc. shall be expressed in ratio, thus:
S = 1:100
S = 0.02
Bubble Cloud.
Revision are highlighted by a “Bubble Cloud” around the revised
area.
Print Option
For Printing of required Drawings/Documents.
IRAS/B
Software used for revision of existing Drawings/Documents which
are not generated in Microstation native files.
3.1.2.8 A.I.D : Affiliate Identifier
List of code assigned for representing affiliates.
3.1.2.9 Affiliates Logo
Affiliate Logos are created for placement in the area provided in
the Title Block.
3.1.3 CELL Libraries :
Drawings symbols and abbreviation are customized complying to SABIC
Engineering Standards (SES). Use of International Standard for Symbols and
Abbreviations which are not customized is subject to SABIC E&PM approval.
4. Guidelines
4.1 Preparation and Revision of Drawings.
4.1.1 New Drawings
4.1.1.1 Engineering drawings shall be prepared in accordance with
requirements and instruction outlined in this standard.
4.1.1.2 Engineering drawings common to multiple plants or identical portion
within a plant must be prepared separately for each installation.
4.1.1.3 New drawings that are created as continuation of an existing Design
are considered as continuation drawings of the Design Bearing the
next sequential (numeric) sheet number of that Drawing set.
4.1.2 Revision of Drawings
Engineering drawings shall be revised in accordance with the requirements outlined
within this Standard.
4.1.2.1 Existing drawings must be utilized for any modification of a facility.
Creation of new drawings to indicate a change in an existing facility
will not be accepted. If, however, this is not avoidable for some reason
such as crowdedness or major revision changes, then the new
drawing must bear the same drawing number of the existing drawing.
4.1.2.2 Each revision must have description in the revision column in title
block area summarizing the modifications that took place under a
specific project.
4.1.2.3 For new drawings, revisions are designated by letters for Approval
issues (A,B,C etc) and by numbers for Construction issues (0,1,2,3
etc). When making a first construction issue of a drawing (Rev.00),
previous Approval issue notations are to be erased, leaving only the
Rev.00 information.
4.1.2.4 For existing drawing, revisions are to be designated by the next letter
or number on that drawing.
4.1.2.5
Revisions are highlighted by a “bubbled cloud” around the revised
area with revision triangle.
4.1.2.6
Revision triangles shall be placed on the drawing in such a way as to
make it possible to locate revision areas quickly. Old revision triangles
and related notes must be removed from the drawings, except the
triangles and related notes showing the latest revision numbers in the
revision column.
4.1.2.7
Do not show any shading or triangles in the revision column.
4.1.2.8 When a revision column has no available space for a new revision, the
oldest (earliest) revision notation is erased to make space for the new
revision. For larger projects, a separate sheet with all revision
descriptions shall be issued.
4.1.2.9
If a drawing consists of more than one sheet, revise and issue only the
sheets required for a project. The other sheets and their revision
numbers, remain unchanged.
4.1.2.10 When revising some pages of bulk drawings that has single electronic
file of the complete set, the revision column of only first sheet shall
indicate the change and revision number change. Complete set shall
be submitted.
4.1.2.11 The letter “O” and “I” shall not be used for identification symbols on the
drawings, as they are often confused with Zero and One.
4.1.3 Cancellation of Drawing
4.1.3.1 Engineering drawings must be cancelled under the circumstances
identified below. These circumstances should also be described in the
drawing revision blocks as the reasons for canceling the drawings.
a. facility, unit, installation, or a piece of equipment has been
abandoned, removed, dismantled or transferred to other areas of
plant.
b. The drawing has been superseded by another drawing.
4.1.3.2
Drawings being cancelled shall follow the same procedures and levels
of approval of the revised drawings.
4.1.3.3 An engineering drawing MUST NOT be cancelled when:
a. Completely redrawn. In this case, a higher revision will be applied
to the same drawing number.
b. Only part of the drawing is void.
4.1.3.4 When a drawing is cancelled, it shall be re-issued as the next revision,
with the Description “Cancelled” in the revision block. Also, the word
“Cancelled” shall be added in large letters just above the title block.
4.1.3.5 When a drawing is cancelled and superseded by another drawing, the
drawing shall be re-issued as the next revision number, with the
description “Cancelled” in the revision block. Also, this note shall be
added in large letters just above the title block”. “Cancelled,
superseded by Drawing No. _______________”.
4.1.3.6 When a drawing is completely redrawn, the old drawing is not to be reissued
as “Cancelled”, but this note shall be added above the title
block” “Redrawn and superseded by new drawing with same number,
revision___”. The revision block of the new drawing shall include the
statement “Redrawn”.
Drawing numbers of cancelled or superseded drawings shall not be
re-used.
4.1.4 Demolition Drawing
4.1.4.1 The demolishing drawing shall be prepared to indicate a facility, unit,
Installation or piece of equipment to be removed or replaced.
4.1.4.2 When preparing demolishing drawing, the following steps must be
taken.
Obtain an electronic file of existing drawing to be used for
demolition.
Cloud and cross hatch the areas to be removed.
The Drawing number for demolition drawing shall be existing
drawing number followed by suffix letters “DEM” . The suffix
letters will distinguish that this drawing is “For Demolition”.
4.1.4.3 The demolition drawings will be used during construction. After facility
As-Built the Demolition Drawing shall be disposed off.
4.1.5 As-Built Drawings
As built drawings are required in the following categories
4.1.5.1
Drawings prepared using Engineering Software Applications.
– All drawings including 3D model shall be updated to as-built
conditions.
4.1.5.2
Drawings prepared for Modification of existing Units / Facilities
and De-Bottlenecking Project.
– All key drawings, which are agreed upon, jointly by SABIC
E&PM and affiliates shall be update to As-Built condition.
Additions or changes to drawing resulting from facility
modification must also be verified as “As-Built”.
All “As-Built” drawings shall be processed in the same manner as normal drawing
revision.
4.2 Handling of Drawings
4.2.1 Engineering Drawings
4.2.1.1 Engineering drawings shall be prepared and revised in accordance
with Requirements of this standard
4.2.1.2 SABIC E&PM is custodian of all Engineering drawings and documents
and is responsible for the following:
Ensure that all engineering drawings are produced, controlled,
approved and submitted in accordance with this Drafting standard,
all related SABIC E&PM Standards and procedures.
Issue of existing drawings with revision numbers required for
modification requested by the Project. Revision number will be
controlled in accordance with Master List maintained.
Assign and control
“Numbering System” such as
Drawing/Documents, Equipment Numbers, Pipeline Numbers,
Instrument Numbers, Electrical Equipment Numbers, etc. as
requested by the Project in accordance with Master List
maintained.
4.2.1.3 Engineering drawings developed for project proposal purposes shall
not be assigned engineering drawing numbers, neither shall they be
archived in the System. The Project Management Teams shall
develop their own temporary numbers throughout the project proposal
stage. Engineering drawings numbers shall replace these numbers at
the time of the detailed design.
4.2.1.4 The Project shall assign their own dummy tag number (Equipments,
Instruments, Cable & Conduit, Pipe line numbers etc.) for project
proposal efforts and those must be replaced with the property
assigned tag numbers in detailed design.
4.2.1.5
Drawing Control Sheet for In-house , GES & LSTK Projects shall be
prepared for each project. All engineering drawings (revised and new)
shall be listed in this Drawing Control Sheet. This sheet shall be part
of Engineering Package with Engineering Drawing number.
4.2.2 Vendor Drawings/Documents
4.2.2.1 Vendor drawings/ documents shall be prepared with sufficient quality
to enable proper reproduction and handling. Each drawing shall be
reviewed and approved before acceptance of Material Purchase.
Vendor Drawings require the same level of control as Engineering
Drawings.
4.2.2.2 Vendor drawings/documents shall be properly numbered as per the
Vendor drawings and documents numbering procedure.
4.2.2.3 Vendor drawings falling in the category of engineering drawing
such as P&ID’s for Package units and Skid mounted Equipments
shall be prepared as Engineering Drawings in accordance with all
requirements of this standard.
4.2.2.4 Vendor drawings shall contain complete accurate dimensions on
plan layouts, section and details relative to equipment positioning
and installation connections.
4.2.2.5 All Vendor drawings/documents shall be submitted in Electronic Media
and in the format-described in SES # D01-G04.
4.2.2.6 Vendor drawings/documents shall be reviewed and approved prior to
acceptance as part of the purchase order requirements.
4.2.2.7 The revision procedure for Vendor drawings is the same for revising
Engineering drawings as per this standard.
4.3 Requesting Drawings
4.3.1 Existing Engineering and Vendor drawings/documents shall be requested by the
Project for modification , As-built and Demolition.
4.3.2 Designer/CAD Operator shall request existing Engineering and Vendor drawings /
documents (Soft / Hard Copy) required for Modification / Revision for In-House
Projects.
4.3.3 Design Engineer shall request existing Engineering and Vendor
drawings/documents (Soft/Hard Copy) required for modification /revision for
GES/LSTK Projects using Drawing Control Form prepared for each project.
4.3.4 For Expansion Project / Grass Root Plants, Project Manager shall request
Engineering and Vendor drawings / documents (Soft / Hard Copy) required for
modification / revision.
4.3.5 Only one revision number shall be issued at one time for each revision under one
project.
4.3.6 Revision number (numeric or alpha numeric), which has been issued for a
particular project shall not be used for any other project to identify modification on
an engineering drawing.
4.3.7 In case it is determined that for some reason, a drawing does not need to be
revised after revision number has been issued, then that revision number must
immediately be cancelled by the requester through formal correspondence.
4.4 Submittal of Documentation:
4.4.1 Soft / Hard Copy of Engineering and Vendor Drawings/Document shall be
submitted to SABIC E&PM for archival and uploading in the system.
4.4.2 SABIC E&PM is responsible for receiving Drawing/Documents, retaining them in
permanent files and ensuring their Safety and Security.
4.4.3 Only Engineering and Vendor Drawings/Documents which have been prepared in
accordance with SABIC Drafting Standard shall be submitted. This includes
obtaining the proper approval signature or initials. Improperly prepared Drawings
will be returned for compliance with this Standard.
4.4.4 Site Project Engineer shall submit all Engineering and Vendor drawings/documents
(Soft/Hard Copy) for In-House, GES and LSTK Projects as per drawing control
prepared for each project.
4.4.5 For Expansion Project / Grass Root Plants, Project Manager shall submit all
Engineering and Vendor drawings/documents (Soft/Hard Copy) in As-Built
condition as per Maser Index of Project Deliverables for each project and shall be in
accordance with Document and Data Handover Guidelines SES# D01-G02.