SIST EN 60038:2011/oprA2:2026 (Fragment 1)
(Amendment)Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
Amendement 2
Standardne napetosti za nizkonapetostno enosmerno napajanje ali nizkonapetostno enosmerno opremo (predlagan horizontalni standard) - Dopolnilo A2 (fragment 1)
General Information
- Status
- Not Published
- Public Enquiry End Date
- 22-Feb-2026
- Technical Committee
- NTF - Electricity energy supply systems
- Current Stage
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 09-Dec-2025
- Due Date
- 28-Apr-2026
- Completion Date
- 16-Feb-2026
Relations
- Effective Date
- 19-Jul-2016
Overview
SIST EN 60038:2011/oprA2:2026 (Fragment 1) is a proposed amendment under the CLC organization, focusing on standard voltages for low voltage direct current (LVDC) supply and LVDC equipment. This horizontal standard is undergoing the approval process as a Committee Draft for Vote (CDV) and aims to update and broaden existing voltage ranges to better reflect modern requirements for LVDC systems and equipment.
Standardized voltages are crucial for the safe, reliable, and interoperable operation of electrical supply systems and equipment across diverse industries-particularly as LVDC becomes increasingly important in applications such as renewable energy, power distribution, and energy storage systems.
Key Topics
- Scope Updates: The amendment refines device classifications by specifying that both AC and DC equipment with nominal voltages below 120 V (AC or DC) are covered, as well as systems/equipment operating above 120 V and up to 1500 V DC.
- Revised Voltage Tables: Adjustments in voltage classifications cater to a wider array of equipment and installation needs. Notably, nominal voltage lists for both AC and DC are standardized for improved compatibility and safety.
- New Definitions for LVDC Domains:
- Installation Domain: Direct supply of voltage to end-user and production appliances.
- Distribution Domain: High power, long-distance supply arrangements for distribution purposes (excluding final circuits).
- Voltage Control Strategies: Systems may be self-controlled or rely on voltage source-dependent strategies, with a focus on maintaining operating voltages within specified tolerances.
- Safety and Electromagnetic Compatibility: Emphasis on aligning voltage standards for efficient system integration, risk mitigation, and electromagnetic compatibility.
Applications
This amendment is highly relevant across the electrical energy sector and supports advancements in:
- Power Distribution and Utilities: Optimizing LVDC supply networks for both installation and distribution purposes.
- Renewable Energy Systems: Standard voltage levels enable interoperability and safe integration of solar, battery, and distributed generation systems.
- Industrial and Communication Equipment: Facilitates unified voltage references for equipment ranging from industrial automation to communication networks.
- Energy Storage Systems: Provides guidelines for voltage ranges in battery banks and related devices, critical for safe energy storage deployment.
- Building Electrical Installations: Ensures compatibility for appliances, lighting, and production equipment operating on LVDC.
Related Standards
For additional technical context and standardization efforts related to LVDC voltages and equipment, consider the following references:
- IEC 60038: Standard voltages (main reference for voltage levels in AC and DC applications)
- IEC TR 63282: LVDC systems - Assessment of standard voltages and power quality requirements (recommended for in-depth assessment and best practices)
- IEC TC 8: System Aspects of Electrical Energy Supply (committee responsible for broader supply system standards)
- Relevant horizontal standards covering electromagnetic compatibility and safety in LVDC contexts
Utilizing harmonized voltage standards as outlined in EN 60038:2011/prA2:2025 supports improved equipment interchangeability, operational safety, and efficient power system management-benefiting manufacturers, utilities, and end-users seeking to leverage the growth of LVDC supply and equipment in modern electrical infrastructure.
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Frequently Asked Questions
SIST EN 60038:2011/oprA2:2026 (Fragment 1) is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)". This standard covers: Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
SIST EN 60038:2011/oprA2:2026 (Fragment 1) is classified under the following ICS (International Classification for Standards) categories: 27.100 - Power stations in general; 29.020 - Electrical engineering in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 60038:2011/oprA2:2026 (Fragment 1) has the following relationships with other standards: It is inter standard links to SIST EN 60038:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 60038:2011/oprA2:2026 (Fragment 1) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2026
Standardne napetosti za nizkonapetostno enosmerno napajanje ali
nizkonapetostno enosmerno opremo (predlagan horizontalni standard) - Dopolnilo
A2 (fragment 1)
Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment
(Proposed horizontal standard)
Amendement 2
Ta slovenski standard je istoveten z: EN 60038:2011/prA2:2025 (Fragment 1)
ICS:
27.100 Elektrarne na splošno Power stations in general
SIST EN 60038:2011/oprA2:2026 en
(Fragment 1)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
8/1785/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60038/AMD2/FRAG1 ED7
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-12-05 2026-02-27
SUPERSEDES DOCUMENTS:
8/1753/CD, 8/1772/CC
IEC TC 8 : SYSTEM ASPECTS OF ELECTRICAL ENERGY SUPPLY
SECRETARIAT: SECRETARY:
Italy Mr Christian Noce
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 1,TC 2,TC 3,SC 3C,SC 3D,TC 4,TC 5,TC 7,SC 8A,SC TC 8 Horizontal Basic
8B,SC 8C,TC 9,TC 10,TC 11,TC 13,TC 14,TC 15,TC 17,SC
17A,SC 17C,TC 18,SC 18A,TC 20,TC 21,SC 21A,TC 22,SC
22E,SC 22F,SC 22G,SC 22H,TC 23,SC 23A,SC 23B,SC
23E,SC 23G,SC 23H,SC 23J,SC 23K,TC 25,TC 26,TC 27,TC
29,TC 31,SC 31G,SC 31J,SC 31M,TC 32,SC 32A,SC 32B,SC
32C,TC 33,TC 34,SC 34A,SC 34B,SC 34C,SC 34D,TC 35,TC
36,SC 36A,TC 37,SC 37A,SC 37B,TC 38,TC 40,TC 42,TC
44,TC 45,SC 45A,SC 45B,TC 46,SC 46A,SC 46C,SC 46F,TC
47,SC 47A,SC 47D,SC 47E,SC 47F,TC 48,SC 48B,SC 48D,TC
49,TC 51,TC 55,TC 56,TC 57,TC 59,SC 59A,SC 59C,SC
59D,SC 59F,SC 59K,SC 59L,SC 59M,SC 59N,TC 61,SC
61B,SC 61C,SC 61D,SC 61H,SC 61J,TC 62,SC 62A,SC
62B,SC 62C,SC 62D,TC 64,TC 65,SC 65A,SC 65B,SC 65C,SC
65E,TC 66,TC 68,TC 69,TC 70,TC 72,TC 73,TC 76,TC 77,SC
77A,SC 77B,SC 77C,TC 78,TC 79,TC 80,TC 81,TC 82,TC
85,TC 86,SC 86A,SC 86B,SC 86C,TC 87,TC 88,TC 89,TC
90,TC 91,TC 94,TC 95,TC 96,TC 97,TC 99,TC 100,TA 1,TA
2,TA 4,TA 5,TA 6,TA 15,TA 16,TA 17,TA 18,TA 19,TA 20,TC
101,TC 103,TC 104,TC 105,TC 106,TC 107,TC 108,TC 109,TC
110,TC 111,TC 112,TC 113,TC 114,TC 115,TC 116,TC 117,PC
118,TC 119,TC 120,TC 121,SC 121A,SC 121B,TC 122,TC
123,TC 124,TC 125,PC 126,PC 127,PC 128,TC
129,CISPR,CIS/A,CIS/B,CIS/D,CIS/F,CIS/H,CIS/I,CIS/S,ACEA,
ACEC,ACEE,ACOS,ACSEC,ACTAD,SyC AAL,SyC COMM,SyC
LVDC,SyC SM,SyC Smart Cities,SyC Smart Energy,SEG
11,SEG 12,SEG 13,SEG 14,ISO/IEC JTC 1/SC 25,ISO/IEC
JTC 1/SC 41,ISO/IEC JTC 1/SC 43
ASPECTS CONCERNED:
Electromagnetic Compatibility,Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which t hey are
aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to
be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses.
(SEE AC/22/2007 OR NEW GUIDANCE DOC).
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You
may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without permission in
writing from IEC.
General
TITLE:
Amendment 2 (Fragment 1) - Standard voltages for L
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