ENGINEERING DRAWING STANDARDS MANUAL 3 1. Hopefully and example will make it easier to understand. Leave a comment to help all for better understanding. Preliminary room numbers shall be preceded by an “X.” For instance, a room numbered “1234” shall be noted as “X1234” until final room numbers are established. The Uniform Drawing System (UDS) include what is called the sheet identification which be used to label Sheets and drawings in a manner that makes their content and referencing clear. Number: A sequential number (4 digits). The sheet sequence number is a two-digit number that identifies each sheet in a series of the same discipline and sheet type. In this case the discipline designator, in the next Topic, I will continue explaining the, Basic Electrical Design Course – Level II, Basic Electrical Design Course – Level III, Grounding System Design Calculations Course, Lightning-1: Introduction to Lightning Protection System Design, Lightning-2: Lightning Protection System Design and Calculations, Advanced Course for Lighting Design - Level I, Introduction to Electrical Motors Basics Course, Wiring Diagrams and Calculations for HVAC Systems Course, Electrical Shop Drawings Course – Level I, Power Factor Correction Calculations Course, Electrical Water Heaters Calculations Course, Elevator Traffic and Motor Power Calculations Course, Fluorescent and Incandescent Light Fixtures Inspection Course. DRAWING ELEMENTS 1.1. Work in progress drawing and model files should be named using the following format: Project – Originator – Volume/System – Level/Location – Type – Role – Number. Still sounds a little confusing? H��Vˎ7��+x$h�79G{�aār0|��ج!���l#��&g�vrXM�4�U��n�X-��V^9��/�0fe�'��!eU�Jku\��΋���^�6�hmR��7���_��wC�7f����Y���f�0�G�t��'8U�F�ޙe���'��^�e����_a!ґ3ׄ>�;>0Lş�kҌ��s��¡=��U�XB�����&����6 T�4�)d���3~��͊�[P�a0 Handling larger paper is a hassle. 9. numbers can be established by the design team using the current guidelines in the Floor and Room Numbering Standards available on the OUA web site. Electrical and electronics engineering drawings Including electrical tables, diagrams and charts: 01.100.27 Technical drawings for telecommunications and information technology fields 01.100.30: Construction drawings Including civil engineering drawings: 01.100.40 Note: The hyphen in the Level 1 discipline designator is a required place holder in the absence of the second character of Level 2. The drawings required may be included on the E (Electrical) sheets along with the rest of the drawings produced by that designer. For example, the electrical engineer may be the designer for a telephone system. 1. It is the first component of the sheet identification format used to identify the sheet as a member of a subset or to assign the category of subject matter contained in the drawing and it has three components as follows: UDS allows two levels of sheet identification: If the level of detail demands it, the electrical engineer may decide to segregate the telephone system information onto sheets with the Level 2 designator, For an even more complex project involving voice, data, security, and signal systems, separate drawings for each communications system may be required, perhaps even produced by a network specialist. In the United States, there are a variety of standards for CAD drawings, but most of the formal ones pertain more to building and architectural wiring than to machine controls. 2. ARCHIVING PROCESS Electrical diagrams are archived in CDD as HPGL plot files. 1 - Master Element 2 - Time Delay Starting or Closing Relay 3 - Checking or Interlocking Relay 4 - Master Contactor 5 - Stopping Device 6 - Starting Circuit Breaker 7 – Rate of Change Relay 8 - Control Power Disconnecting Device 9 - Reversing Device 10 - Unit Sequence Switch 11 – Multifunction … This is further illustrated in the image. 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