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Exchange Requirement Data Objects
Exchange Requirement Data Objects of Electrical Engineering (PM)
The following Exchange Requirements are defined through the Electrical EngineeringProcess Map:
er_exchange_electrical_model (programming)
| Type | Data Object |
| Name | er_exchange_electrical_model (programming) |
| Documentation | Electrical model at the programming stage that can be added to overall building information model. Information at this stage is advisory based on speculative design. It includes the following advisory information provision: - overall size (area) of major technical spaces required, - minimum height requirement for technical spaces, - location of major technical spaces including constrained relationships to any other spaces that may be required for reasons of noise, safety, environmental considerations or other aspects, - required adjacency between major technical spaces considered to be in the vertical as well as in the horizontal plane; this may indicate the required strength of the adjacency (must be, should be, could be), - estimated electrical load for the project, - indications of major equipment items to be located in identified spaces and information that may impact on regulation processes (e.g.planning), - distribution methods available (e.g. 400/3/50, 415/3/50, 240/1/50, 110/1/60 etc.), - list of special spaces for which special design provisions may apply. |
er_exchange_electrical_model (space)
| Type | Data Object |
| Name | er_exchange_electrical_model (space) ** applicable to design stages cyclically ** |
| Documentation | Exchange of information about technical spaces for electrical plant and equipment and how other spaces are grouped for system development and for proposed voltage drop zones. Used to coordinate with general zoning and spacing requirements with other roles. |
er_exchange_electrical_model (equipment)
| Type | Data Object |
| Name | er_exchange_electrical_model (equipment) ** applicable to design stages cyclically ** |
| Documentation | Exchange of information about shape, size and location of electrical components. Electrical systems information can then be brought together with equivalent information from other roles to ensure that items of equipment are in proper spatial and functional relationship to each other taking into account their size and location in terms of space allocation and structural provision. Information provided for equipment includes all that provided for prior exchange requirements including spaces information with the addition of: - types of electrical component to to be used and sizes - allocation of type information to occurrences of electrical components - size of type and/or occurrence of electrical component - shape representation of electrical component (using an appropriate representation form that may be symbolic, 2D, 3D boundary representation etc.); the form of representation to be used and the extent of detail that is provided for the component may differ at different stages of the project. - location of occurrences of electrical components. |
er_exchange_electrical_model (systems)
| Type | Data Object |
| Name | er_exchange_electrical_model (systems) ** applicable to design stages cyclically ** |
| Documentation | Exchange of information about configuration, size, location and technical data of electrical systems including both the components and the distribution elements. Electrical systems information can then be brought together with equivalent information from other roles to ensure that items of equipment are in proper spatial, functional and technical relationship to each other taking into account their size and location in terms of space allocation and structural provision. Information provided for systems includes all that provided for prior exchange requirements including spaces and components information with the addition of: - estimated or calculated loads for systems and for the project (the definition of estimate or calculation being dependent on project stage and the available technical detail to enable calculation to occur), - form of electrical distribution (e.g. 400/3/50, 415/3/50, 240/1/50, 110/1/60 etc.) - electrical requirements at components (voltage, current, phase and other common technical information) - simultaneous load diversity information required by the power supplier. - types of cable or busbar to be used and sizes - allocation of type information to occurrences of cable/busbar - types of cable carrier elements to be used and sizes - allocation of type information to occurrences of cable carriers - types of protection device and outlet to be used, sizes and technical data - allocation of type information to occurrences of protective device and outlet - allocation of components and distribution elements to circuits - distribution routes The extent of system information exchanged will vary depending on the project stage, (1) Sketch design is expected to include only major routes and information may be provided only in terms of the cable carrier elements used to provide an overall spatial contect. (2) Full concept design is expected to include information about sub-main distribution and may include final circuits. Relevant information about cables is expected together with load information. Technical data will be provided but this may not be sufficiently complete for specification and procurement. (3) Coordinated design will include all circuits and all relevant cable and conductor information including their connectivity and all associated detailed technical data required for specification and procurement. |