SIST HD 60364-5-557:2014/A11:2016

Low-voltage electrical installations - Part 5-557: Selection and erection of electrical equipment - Auxiliary circuits

D148/094: Formal vote decided

Errichten von Niederspannungsanlagen - Teil 5-557: Auswahl und Errichtung elektrischer Betriebsmittel - Hilfsstromkreise

Installations électriques à basse tension - Partie 5-557: Choix et mise en œuvre des matériels électriques - Circuits auxiliaires

Nizkonapetostne električne inštalacije - 5-557. del: Izbira in namestitev električne opreme - Pomožni tokokrogi - Dopolnilo A11

Ta točka velja za pomožne tokokroge, razen za tiste, ki jih pokrivajo posebni standardi za izdelke ali sisteme.

General Information

• Status: Published
• Publication Date: 13-Mar-2016
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: ELI - Electrical and communication installations
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Mar-2016
• Due Date: 15-May-2016
• Completion Date: 14-Mar-2016
• Ref Project: HD 60364-5-557:2013/A11:2016 - Low-voltage electrical installations - Part 5-557: Selection and erection of electrical equipment - Auxiliary circuits

Relations

• Amends: SIST HD 60364-5-557:2014 - Low-voltage electrical installations - Part 5-557: Selection and erection of electrical equipment - Auxiliary circuits
• Effective Date: 01-Apr-2016

Overview

HD 60364-5-557:2013/A11:2016 is a CENELEC harmonization amendment for low-voltage electrical installations, Part 5-557, addressing the selection and erection of electrical equipment for auxiliary circuits. This amendment updates the 2013 Harmonization Document and was approved by CENELEC (amendment A11, March 2016). The document focuses on practical measures to ensure safe, reliable and EMC-aware auxiliary circuit installations in LV systems.

Key administrative notes from the harmonization extract:

• Amendment A11 modifies HD 60364-5-557:2013 and was approved by CENELEC on 2015-05-18.
• Implementation deadlines: latest publication (dop) 2016-09-04; conflicting national standards to be withdrawn by 2019-03-04.
• The amendment exists in English, French and German and is intended for adoption by CENELEC national committees.

Key Topics

The amendment and associated harmonization document highlight several topics relevant to designers, installers and compliance managers:

• Selection and erection of auxiliary circuits: principles for choosing appropriate electrical equipment for control, signalling and auxiliary functions in LV installations.
• Measures to avoid loss of functionality: provisions emphasise maintaining essential functions under fault or abnormal conditions; the document replaces and clarifies specific paragraph wording related to these measures.
• Lateral short-circuit proof: the amendment clarifies the meaning of "lateral short-circuit proof" (NOTE 1) as protection against shorting of parallel conductors within an assembly and renumbers the original NOTE as NOTE 2.
• EMC considerations: an explicit note clarifies that this requirement does not preclude application of HD 60364-4-444, linking auxiliary-circuit requirements to wider EMC guidance.
• Terminology updates: the amendment deletes definition 557.2.5 and adjusts other term and note treatments to align with harmonized language.

Applications

This amendment supports practical implementation across a range of LV installations where auxiliary circuits are used, including:

• Building services (lighting control, fire and safety signalling)
• Industrial control and automation auxiliary circuits
• Switchgear and distribution equipment auxiliary supplies

Benefits for practitioners:

• Improved safety through clearer requirements for selection and installation
• Enhanced EMC management by cross-referencing HD 60364-4-444 and emphasising EMC-aware design
• Operational reliability by addressing measures to avoid loss of functionality and clarifying short-circuit protection of parallel conductors

Related Standards

• HD 60364-5-557:2013 (original Harmonization Document) - baseline for Part 5-557
• HD 60364-4-444 - referenced for EMC provisions applicable to auxiliary circuits
• CENELEC implementation rules and national adoptions - for up-to-date national status and bibliographic references

For specification, compliance checks and design decisions, use this amendment alongside the full HD 60364 series and consult national electrotechnical committees for endorsed national standards and implementation dates.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2016
1L]NRQDSHWRVWQHHOHNWULþQHLQãWDODFLMHGHO,]ELUDLQQDPHVWLWHYHOHNWULþQH
RSUHPH3RPRåQLWRNRNURJL'RSROQLOR$
Low-voltage electrical installations - Part 5-557: Selection and erection of electrical
equipment - Auxiliary circuits
Errichten von Niederspannungsanlagen - Teil 5-557: Auswahl und Errichtung elektrischer
Betriebsmittel - Hilfsstromkreise
Installations électriques à basse tension - Partie 5-557: Choix et mise en œuvre des
matériels électriques - Circuits auxiliaires
Ta slovenski standard je istoveten z: HD 60364-5-557:2013/A11:2016
ICS:
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT HD 60364-5-557:2013/A11

DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
March 2016
ICS 91.140
English Version
Low-voltage electrical installations -
Part 5-557: Selection and erection of electrical equipment -
Auxiliary circuits
Installations électriques à basse tension -  Errichten von Niederspannungsanlagen -
Partie 5-557: Choix et mise en œuvre des matériels Teil 5-557: Auswahl und Errichtung elektrischer
électriques - Circuits auxiliaires Betriebsmittel - Hilfsstromkreise
This amendment A11 modifies the Harmonization Document HD 60364-5-557:2013; it was approved by CENELEC on 2015-05-18.
CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of
this amendment at national level.
Up-to-date lists and bibliographical references concerning such national implementations may be obtained on application to the CEN-
CENELEC Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German).
CENELEC members are the national electrotechnical committees of Austria, Belgium
...