Pow-Sys technical report template
Blank template — not a completed report. No customer information or measurement results are included.
| Heading | Record to be completed |
|---|---|
| Scope | [Areas, equipment and documents examined] |
| Method | [Applicable criteria, instruments and calibration information] |
| Finding | [Observed condition and supporting record] |
| Measurement | [Result, unit, method and report reference, if measured] |
| Assessment | [Applicable criterion and conclusion of the authorised inspector] |
Last updated: October 24, 2026
Technical contact: Hüseyin ÇOKAL, Electrical and Electronics Engineer. Content updated: October 24, 2026.
What changed: Service scope, report outputs, official sources, pre-proposal information and technical transparency notes were reviewed for the current period.
Electrical Installations Design and Consultancy Summary
- Define the installation purpose, design stage and boundaries
- Check load, connection, network and existing-site inputs
- Agree calculations, drawings and equipment interfaces
- Track authority files, revisions and responsible parties
- Separate installation, as-built, testing and acceptance deliverables
Technical contact and professional information
Electrical Installations Design and Consultancy Scope
Electrical installations design and consultancy starts by defining the engineering scope of a new investment or a specific change. Agree the outputs, input data, decision responsibilities and stages; electrical work is not one universal project package.
The purpose and design stage
A new supply, capacity increase, production-line change, equipment replacement or review of an existing design requires different information and deliverables. Define the installation section and operating conditions to be considered.
Preliminary work, detailed design, construction documents and as-built records have different statuses. Identify the decision for which a consultancy opinion, calculation report or drawing can be used.
Verified inputs and explicit assumptions
Collect load lists, demand and operating scenarios, the existing single-line diagram, equipment data, cable routes and lengths, protection data and connection information. Identify the source and validity date of critical inputs; do not present an unknown value as established site data.
Record surveyed areas and inaccessible sections. An archived drawing is not by itself a measured current site record. Where missing information affects a result, make the assumption boundary or required field work visible in the deliverable.
Network and discipline interfaces
Confirm the connection point, supply conditions and network data with the relevant parties. Address civil, mechanical, automation, fire and vendor interfaces as required by the project; an electrical drawing alone does not approve every interface.
The calculation plan and model boundary
Select load flow, short-circuit, voltage-drop, current-carrying-capacity, motor-starting, protection-coordination or grounding studies against the need and contract. Listing a study heading does not mean that every possible analysis is completed for every project.
State the normal and alternative supply conditions, network limits, source contributions and equipment data used in the model. Interpret a result for the scenarios and assumptions under which it was produced. A calculation is not a physical withstand or functional test.
Cable, busbar and layout decisions
Consider design current, installation and environmental conditions, correction factors, voltage drop, short-circuit withstand and relevant protection requirements together. No single loading percentage determines suitability. Check maintenance access, manufacturer layout requirements and discipline interfaces separately.
Protection, grounding and power quality
Protection coordination examines curves, settings and breaker behaviour for defined fault and operating conditions. A calculated setting proposal is not a setting applied to a device and tested through the complete chain. Grounding, compensation and power-quality work also retain their own input and scope requirements.
Drawings and deliverable status
| Stage | Possible output | Separate verification or decision |
|---|---|---|
| Preliminary assessment | Input, option and missing-information lists | Data completion for detailed design |
| Calculation and design | Scenario-based reports and revision-controlled drawings | Applicable criteria and design review |
| Authority submission | A document set for the competent authority | The authority’s review and approval decision |
| As-built records | The final state including verified field changes | Verification of input records and coverage |
| Testing and acceptance support | Agreed check or follow-up records | Actual test results and authorized acceptance/energization |
Identify the revision and permitted use of single-line diagrams, layouts, cable schedules, schematics, specifications and vendor documents. A file submitted for review is not marked as released for construction or authority-approved.
Sample calculation and reporting fields
The following tables and blank templates illustrate reporting formats. Their sample numbers are not customer calculations, measured results or universal acceptance thresholds. Assess the actual project using its verified inputs and applicable criteria.
Authority files and approval follow-up
Determine the submission and approval route from the installation type, voltage, connection arrangement, existing approval status and current delegation of authority. Do not assume that every project is approved by the same distribution company or involves the same institutions.
The proposal may define file preparation, missing-document tracking and technical revision support. Confirm the author, reviewer and applicant’s required eligibility and documents for the actual work. Authority decisions, additional requests and review times remain separate from consultancy delivery.
Implementation checks and as-built records
Procurement, fabrication, installation and site supervision are not automatically included in design. For agreed implementation checks, record the examined area, reference drawing and observed differences. Sampling does not establish verification of every concealed work item.
An as-built record is not created by renaming a file. Incorporate verified field changes, vendor revisions and available records, identifying unverified sections. A final-state drawing does not replace actual test reports or authorized acceptance.
Commissioning, acceptance and energization
Preparing a test plan or reviewing results is separate from performing site measurements and functional tests. Preparing acceptance documents is also separate from the acceptance decision. Relevant authorized parties and approved operating arrangements establish energization conditions; this page provides no switching or energized-work procedure.
Consultancy decisions and follow-up
Keep the input data, assumptions, assessed options, findings, responsible parties and open decisions traceable. Link changed load, equipment or connection information to the affected calculation and drawing revisions.
A proposal and work across Türkiye
Project work can be planned across Türkiye through the Bursa-based organization. Agree the drawing and calculation list, survey, revision boundary, authority follow-up and site support from the facility information and available documents.
Clarify delivery formats, file status, reciprocal data responsibilities and exclusions before contract. No approval outcome, fixed authority timetable, fault-free operation or assurance for every future change is promised.
Reporting, Inspection and Proposal Preparation
| Technical calculation | Sample parameters | Output |
|---|---|---|
| Short-circuit calculation | Transformer capacity, short-circuit voltage, grid short-circuit power, cable impedance, busbar and circuit breaker ratings are evaluated. | Sample result format: Ik'' = 18.4 kA; equipment withstand suitable/not suitable, circuit breaker and protection suitability note is prepared. |
| Load-flow analysis | Installed power, demand power, simultaneity, critical loads, generator/transformer supply scenarios and voltage levels are reviewed. | Sample result format: transformer loading 72%, critical bus voltage 0.98 pu; capacity limit and revision requirement are reported. |
| Voltage drop calculation | Cable cross-section, line length, load current, power factor, installation method and environmental conditions are calculated together. | Sample result format: ΔV = 2.8%; suitable cable cross-section, voltage drop percentage and site implementation note are created. |
| Relay selectivity | Relay curves, circuit breaker characteristics, short-circuit results, transformer data and operating scenarios are compared. | Sample result format: main breaker/outgoing protection selectivity result is classified as suitable, partial improvement required or testing required. |
| Cable sizing and busbar check | Current-carrying capacity, temperature, installation grouping, short-circuit withstand and mechanical layout conditions are reviewed. | Report format: design current, corrected current-carrying capacity, installation conditions and short-circuit withstand; suitability follows the applicable calculation and criteria, not a single loading percentage. |
| Authority approval file | Single-line diagram, load list, project revision, technical calculations, site suitability and acceptance documents are evaluated together. | Sample result format: 5-heading missing document list, project revision note and pre-acceptance follow-up plan are prepared. |
Electrical Design Consultancy Process Table
In the electrical installation design process, the input, calculation/check, delivered output, responsible party and follow-up step are managed together. This table makes visible which information a technical decision is based on and to whom the next action is assigned.
| Input | Technical check | Calculation / analysis | Delivered output / responsible party / follow-up |
|---|---|---|---|
| Single-line diagram and load list | Existing field equipment, panel outputs, MV switchgear layout and new loads are compared. | Installed power, demand power, transformer loading and critical load impact are evaluated. | A revision note, load list interpretation and project-site conformity output are prepared; the technical decision is made by the engineer, and the follow-up items on the customer side are listed separately. |
| Transformer substation and MV switchgear information | Incoming/outgoing cells, metering/protection arrangement, cable routing and maintenance access are checked. | Short-circuit level, breaker withstand, protection coordination and grounding need are analyzed. | The MV switchgear arrangement, transformer substation note and separate test/measurement need are reported; open items are linked to a site visit or project revision follow-up. |
| Utility application and acceptance documents | Distribution company/utility expectations, missing documents and revision items are examined. | Risk items for the utility-approved electrical project, pre-acceptance check and electrical installation acceptance procedures are separated. | An application file checklist, revision follow-up note and responsible document items are prepared; the revision step is tracked after the utility response. |
| Field implementation status | Where site checks are agreed, record the accessed areas, reference revision, visible connections and drawing/site discrepancies. Unverified cable sizes or concealed connections remain explicit information gaps. | The possibility of nonconformity in terms of voltage drop, cable cross-section, energy continuity and safety is evaluated. | Photographed field findings, risk level, corrective action and follow-up date are added to the report; the closure status is re-evaluated at the next inspection. |
Agreed Project Scope and Additional Work
The design and approval tasks specified in the proposal belong to this service. Additional design scope, field implementation and testing are distinguished before work begins.
| Work item | Relationship to the service | Scope decision |
|---|---|---|
| Electrical project design and approval work | Drawings, calculations, agreed revisions and approval follow-up are defined in the project proposal. | The agreed project files and engineering calculations are delivered. |
| Additional capacity, layout or equipment changes | Changes outside the agreed design may require new calculations or drawings. | Additional scope, cost and timing are agreed before revision. |
| Physical installation and field tests | Construction, materials and commissioning measurements require their own work plan. | These are included only when expressly agreed in the proposal; design alone does not include installation. |
Technical and Regulatory Sources
- Electrical High Current Installations Regulation
Claim supported on this page: Provides the regulatory basis for project, operation, safety, acceptance and technical suitability assessments in high-current installations.
- TEDAŞ official website
Claim supported on this page: Provides institutional context for distribution infrastructure, project/acceptance practices and technical requirements.
- TEİAŞ official website
Claim supported on this page: Supports the technical process context for transmission system, connection and high-voltage infrastructure topics.
- EPDK electricity market page
Claim supported on this page: Provides official authority context for distribution company processes and electricity market regulations.
- EMO certificate verification portal
Claim supported on this page: Supports transparency for EMO registration, SMM and certificate verification.
Frequently Asked Questions
What is the main deliverable?
The agreed data review, calculations, drawings and technical decision records. Identify preliminary work, construction documents, authority files and as-built deliverables by their own status and scope.
Which calculations are performed on every project?
The calculation plan follows the installation purpose, voltage, loads, connection conditions and required decisions. Short-circuit, load-flow, voltage-drop, cable, protection and grounding studies are not automatically a complete package for every job.
Do existing drawings replace a site survey?
Archived drawings are inputs whose consistency with the current site must be established. Inaccessible points, missing labels or uncertain dimensions remain explicit data needs.
Are the sample numbers acceptance limits for my project?
No. They illustrate output formats and are not actual calculations or measurements. Suitability requires the relevant design current, corrected capacity, voltage-drop, short-circuit and protection criteria to be assessed with real project data.
Does every project require distribution-company approval?
Determine the competent body and submission type for the actual installation under current authority arrangements. Consider voltage, connection, installation type and previous approval status rather than assuming one organization or procedure.
Does preparing an authority file guarantee approval?
File preparation, document tracking and revisions can be supported within the agreed scope. The competent authority makes its review and approval decision. Verify project-specific eligibility; file preparation does not guarantee the outcome.
Does design include installation and commissioning?
Only when expressly agreed. Materials, installation, supervision, performing tests and reviewing results have different responsibilities and deliverables. Acceptance and energization also require their own authorized processes.
How do as-built and construction documents differ?
Construction documents describe the intended arrangement. As-built records incorporate verified field changes and the final state. Renaming a file or copying an old drawing is not as-built verification.
How are open consultancy findings followed up?
Record the data need, assumption, decision, responsible party and required revision. Incorporate new information into the relevant calculation or drawing; an open item is not closed without supporting evidence.
What should I provide for a proposal?
Share facility type, voltage and connection information, loads, the existing single-line diagram, equipment data, planned changes and desired stage or deliverable. Agree survey, formats, revisions, authority and site support accordingly.