EN 61116:1994

Electromechanical equipment guide for small hydroelectric installations

Provides the future purchaser with information allowing him to prepare the required documents, from the call for tenders up to acceptance tests and operation of electromechanical equipment. Applies to installations having outputs of less than 5 MW and turbines with diameters less than 3 m.

Anleitung für die elektromechanische Ausrüstung von kleinen Wasserkraftanlagen

Guide pour l'équipement électromécanique des petits aménagements hydro-électriques

Donne au futur acquéreur des renseignements lui permettant de préparer les documents nécessaires depuis l'appel d'offres jusqu'à la réception et l'exploitation des équipements électromécaniques. S'applique aux aménagements de puissance unitaire inférieure à 5 MW avec des turbines dont le diamètre n'excède pas 3 m.

Vodilo za elektromehansko opremo malih hidroelektrarn (IEC 61116:1992)

General Information

• Status: Published
• Publication Date: 20-Sep-1994
• Withdrawal Date: 14-Mar-1995
• ICS: 29.160.40 - Generating sets
• Technical Committee: CLC/SR 4 - Hydraulic turbines
• Drafting Committee: IEC/TC 4 - IEC_TC_4
• Parallel Committee: IEC/TC 4 - IEC_TC_4
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 21-Sep-1994
• Completion Date: 21-Sep-1994
• Ref Project: SIST EN 61116:2001 - Electromechanical equipment guide for small hydroelectric installations

Relations

• Replaced By: EN IEC 61116:2025 - Electromechanical equipment guidance for small hydroelectric installations
• Effective Date: 14-Jun-2022

Overview

EN 61116:1994 - Electromechanical equipment guide for small hydroelectric installations is a European guide (originally IEC 61116:1992) that helps a future purchaser prepare procurement and project documentation for electromechanical plant items. The standard specifically applies to small hydropower schemes with installed outputs less than 5 MW and turbine diameters under 3 m. It covers the procurement lifecycle “from the call for tenders up to acceptance tests and operation” of electromechanical equipment.

Key topics and requirements

Although EN 61116 is a guidance document rather than a prescriptive technical specification, it focuses on practical procurement and project requirements. Major topic areas include:

• Preparation of tender documents - guidance on what purchasers should specify for electromechanical supply and interfaces.
• Equipment scope and selection - defining the electromechanical items expected for small hydro plants.
• Acceptance testing and commissioning - requirements and expectations for factory and site tests leading to formal acceptance.
• Operation and maintenance considerations - documentation and operational criteria to support reliable plant performance.
• Documentation and interfaces - requirements for drawings, manuals, data sheets and mechanical/electrical interfaces.

Note: The standard is a purchaser-oriented guide; it sets out the information purchasers need rather than dictating detailed component design values.

Applications

EN 61116 is directly applicable to:

• New small hydropower projects (≤ 5 MW)
• Refurbishment, upgrade or repowering of existing small hydro units
• Preparation of procurement packages and technical specifications for electromechanical plant
• Planning acceptance tests, site commissioning and handover procedures

Use cases include tender preparation, bid evaluation, commissioning checklists and operational readiness reviews for small hydro installations.

Who uses this standard

• Project owners and purchasers preparing calls for tenders and acceptance criteria
• Consulting and design engineers writing specifications and coordinating plant interfaces
• Manufacturers and suppliers responding to tenders for electromechanical equipment
• Contractors and commissioning teams executing acceptance tests and operational handover
• Utilities and small hydropower operators managing lifecycle documentation and maintenance

Related standards

• Based on IEC 61116:1992 and adopted as EN 61116:1994 (with national adoptions such as SIST EN 61116:2001).
• Typically used alongside other electrical and safety standards governing generators, switchgear, protection, grid connection and hydraulic equipment (consult applicable national and international standards for specific technical requirements).

Keywords: EN 61116, IEC 61116, electromechanical equipment, small hydroelectric installations, small hydropower, 5 MW, tender documents, acceptance tests, operation.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2001
1DGRPHãþD
SIST IEC 61116:1999
Vodilo za elektromehansko opremo malih hidroelektrarn (IEC 61116:1992)
Electromechanical equipment guide for small hydroelectric installations
Anleitung für die elektromechanische Ausrüstung von kleinen Wasserkraftanlagen
Guide pour l'équipement électromécanique des petits aménagements hydro-électriques
Ta slovenski standard je istoveten z: EN 61116:1994
ICS:
27.140 Vodna energija Hydraulic energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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