High Voltage Operation Responsibility

The service concerns the technical operation of an eligible MV/HV installation above 1 kV. Under Article 5(d) of the EMO regulation, the installation boundary runs from the energy intake point above 1 kV to the LV main switch, excluding that main switch; energized and de-energized parts can lie within this boundary. The connection arrangement, ownership and single-line diagram must be checked before naming the equipment covered. Utility equipment and installations shared with third parties require separate assessment; Article 7(a) expressly excludes jointly used third-party HV installations from its stated undertaking.

The regulatory application begins with temporary acceptance after construction and continues while the installation is energized. A new facility, a running facility and a change of responsible engineer therefore require different starting information. Transformer kVA is useful equipment data, but it is not a substitute for voltage or a universal threshold for appointment. For the terminology, see our guide to the meaning of HV operation responsibility.

Articles 6 and 13 distinguish the appointment routes. A suitably qualified engineer employed by the enterprise on a full-day, full-year basis can undertake the role with the required YGTIS authorization. Where the enterprise lacks sufficient engineers meeting those conditions, external service requires YGTIS, the relevant EMO Electrical Installations Above and Below 1 kV SMM certificate valid for the current year, and an EMO-approved contract. A documented majority-owner engineer's own installation has a separate route under Article 6; an SMM requirement should not be stated as universal for every appointment.

A degree or course-completion document alone is insufficient. The electrical-electronics engineering route also depends on the applicable educational and transcript conditions. YGTIS authorization, SMM registration and EKAT high-voltage-working training or permission serve different purposes. Check the actual engineer, current documents and appointment arrangement using the YGTIS and authorization verification guide. Published certificate examples or a link to a verification form do not confirm a person's current eligibility.

The engineer inspects the existing installation after taking the role, reports deficiencies, arranges operating documents and coordinates the required work. Article 7 includes the preparation and posting of the single-line diagram, switching instructions issued to operating personnel against signature, safety-equipment follow-up, fault-trip assessment and communication with the energy supplier. Maintenance handover includes the required isolation and grounding arrangements and controlled return to operation under the approved site procedure. This page provides no switching or intervention instructions.

Under Articles 5(e) and 8, the employer may be the owner and/or user of the installation. Its duties include arranging necessary services, repairs and maintenance, supplying requested safety equipment, giving the engineer the authority needed for the role and acting on instructions and warnings. Appointing an engineer does not transfer every duty or certify that the installation has no defects. Separate pricing for a measurement or drawing revision does not remove the engineer's responsibility to arrange and follow up the work required by the regulations.

These activities can be needed at the same site, but their purposes and records differ. A maintenance report does not replace an engineer appointment, and a responsibility contract does not prove that maintenance or testing has been completed. Compare the actual scope and outputs rather than a generic transformer-service label.

The proposal identifies any transformer maintenance, relay testing, grounding measurements, repairs, equipment supply or project work included in the price. Other required work is planned separately. Energy-consumption monitoring and checking the compensation system are outside the general responsibility scope unless a special duty or contract includes them. The electrical periodic inspection service has its own inspection scope and report.

First, establish the facility's energy and appointment status and collect the available records. Next, check the engineer's eligibility, geographical conditions and electrical boundary before finalizing the proposal and applicable contract process. Following the appointment, the initial inspection records existing deficiencies and the work requiring further action. Visit, report, communication and payment arrangements should be clear in writing, including whether emergency support is offered and on what terms.

If the appointment ends while the facility continues operating, Article 11 requires the employer to identify a new responsible engineer immediately and notify the energy supplier and EMO. A temporary transfer for a valid compulsory reason is a different process: Article 10 requires the employer's acceptance and an EMO-approved transfer protocol. Existing contracts, technical records and open actions need to be considered during the change; filling in a sample agreement alone does not complete the appointment.

Article 7(l) requires an SMM-appointed HV installation to be inspected at least once a month. Reporting is a separate obligation: a report is prepared when necessary and at intervals no longer than four months, for the energy supplier, employer and relevant EMO unit. Site conditions can require additional follow-up. The four-month reporting interval cannot replace monthly SMM inspections, and an optional monthly report is not the same requirement as a monthly visit.

The written record should connect the inspection date and equipment identity to the observation, supporting document or measurement reference, proposed work, responsible party and follow-up status. A missing grounding report is a missing record; it is not a measured resistance result. An action is closed only against the relevant verified completion record. The blank technical report template illustrates a record structure without customer data or measured results; it is not an EMO-approved form or a completed inspection. Current official contract and submission forms are confirmed with the relevant EMO unit.

Article 6 makes provincial boundaries the normal basis for undertaking responsibility. An adjacent-province appointment requires the stated branch-boundary and branch-board approval conditions. Specified public procurement or national legal-entity arrangements have a separate contractor route involving the applicable firm conditions, relevant branch approvals and an authorized local subcontractor engineer. These exceptions do not create unrestricted nationwide authority for one engineer. Geographical eligibility is assessed for the actual facility before the appointment; Bursa site-service and visit planning is described separately.

The fee is assessed against the applicable EMO tariff and the actual proposal scope; this input list is not a universal tariff formula. Article 9 provides for EMO's annual publication of service fees. Any additional tests, visits or emergency support should be identified in the offer. The HV operation responsibility cost guide explains how to compare tariff context and included work. Some documents may be missing. Send the available facility information so the gaps can be identified before a service commitment is made.