IEC 60570:2003/AMD2:2019

Amendment 2 - Electrical supply track systems for luminaires

Amendement 2 - Systèmes d'alimentation électrique par rail pour luminaires

General Information

• Status: Published
• Publication Date: 10-Dec-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.20 - Connecting devices
• ICS: 29.140.40 - Luminaires
• Technical Committee: SC 34D - Luminaires
• Current Stage: PPUB - Publication issued
• Completion Date: 11-Dec-2019

Standards Content (sample)

IEC 60570
Edition 4.0 2019-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Electrical supply track systems for luminaires
Systèmes d'alimentation électrique par rail pour luminaires
IEC 60570:2003-01/AMD2:2019-12(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60570
Edition 4.0 2019-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Electrical supply track systems for luminaires
Systèmes d'alimentation électrique par rail pour luminaires
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.20; 29.140.40 ISBN 978-2-8322-7649-5

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60570:2003/AMD2:2019
© IEC 2019
FOREWORD

This amendment has been prepared by subcommittee 34D: Luminaires, of IEC technical

committee 34: Lamps and related equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
34D/1502/FDIS 34D/1517/RVD

Full information on the voting for the approval of this amendment can be found in the report

on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability date indicated on the IEC website under

"http://webstore.iec.ch" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1 Scope

Replace the second dashed list item, modified by Amendment 1, with the following new

dashed item:

– a SELV system without provision for protective earthing (class III) and a rated current not

exceeding 25 A per conductor, or
At the end of the scope, add the following new text:

This document does not cover operational or performance compatibility between different

track systems. Protection against unsafe compatibility between Class I and Class III circuit is

covered by this document.

The track system can be provided with auxiliary circuits for the purpose of a control or audio

signal other than supply.

NOTE 1 At present, the following types of control systems are available on the market:

– control signal, with basic insulation to LV supply (e.g. digital addressable lighting interface, 1 V to 10 V DC

signal);
– control signal, SELV/PELV insulated to LV supply (e.g. DMX);

– control signal, not insulated to LV supply (e.g. push button control/phase cut/step dim).

Track systems can also be provided with conductors specifically identified for emergency

lighting luminaires.
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IEC 60570:2003/AMD2:2019 – 3 –
© IEC 2019

NOTE 2 Requirements for PELV are under consideration, pending modification in IEC 60598-1.

2 Normative references

Replace the reference to IEC 60598-1:1999 with the following new reference and note:

IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017

NOTE The 9 edition of IEC 60598-1 is under preparation. Stage at the time of publication

IEC PRVC 60598-1:2019. This 9 edition provides a cross link between IEC 60598-1 and IEC 60570 for track

mounted luminaires.
Add the following new reference:

IEC 60598-2-22:2014, Luminaires – Part 2-22: Particular requirements – Luminaires for

emergency lighting
IEC 60598-2-22:2014/AMD1:2017
3 Terms and definitions
3.1
luminaire track system
Add the following notes to entry:

Note 1 to entry: The track system may be provided with auxiliary circuits for the purpose of a control or audio

signal other than supply; the track system may be used to supply luminaires where the control signals are injected

via supply conductors or a circuit connected to the supply via separated conductors (e.g. powerline).

Note 2 to entry: The track system may be provided with circuits identified to ensure battery recharge (for self-

contained emergency luminaires).
3.10
class I track
Add the following notes to entry:

Note 1 to entry: The track can be provided with auxiliary circuits for control or audio signals. These auxiliary

circuits can use conductors originally designed for mains supply.

Note 2 to entry: The track system can be provided with circuits identified to ensure battery recharge (for self-

contained emergency luminaires).
3.11
class III track
Replace the existing note with the following new note to entry:

Note 1 to entry: The track can be provided with auxiliary circuits for a SELV control or audio signals. These

auxiliary circuits can use separate auxiliary conductors or conductors originally designed for a SELV supply.

5 General test requirements
5.3

In the second paragraph, replace "the following items" with "items a) to i) as follows." and

replace the colon ":" after "class III sectors:" with a full stop. then add, before list item a), the

following new paragraph:
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– 4 – IEC 60570:2003/AMD2:2019
© IEC 2019

For track systems with control interface and/or additional circuits, it is necessary to provide

samples of the different constructions (both with and without additional circuits); the same is

applicable for tracks designed to be used together with emergency luminaires.
6 Marking
In the first paragraph, replace "6.7" with "6.9".
6.1
In the second paragraph, replace "symbol for class III" with "graphical symbol
IEC 60417-5180 for class III".
6.3
At the end of the second paragraph, add the following new text:

All terminals shall be marked with their identification; the mounting instructions shall explain

the meaning of identification and the relevant circuit connections and/or functions.

NOTE Some track and adaptor terminals can be identified with a dual function such as for supply or audio signal

connection.
6.5
At the end of list item a), add the following new text:

If the track is intended to be wall mounted, or has similar non-horizontal mounting, the

instructions shall contain information regarding any limitations of the track positioning, and the

maximum specified mechanical loadings.
6.6
Replace list item b) with the following new item b):

b) where there is an associated safety isolating transformer or lamp controlgear, instructions

regarding the correct method of connection of the transformer or lamp controlgear

terminals to avoid misinterpretation of the primary and secondary terminals;
In list item d), delete the note.
At the end of list item e), add the following new item f):

f) a warning that for Class III track systems any connected control or audio signals shall only

be provided by a SELV source.
6.7
At the end of Subclause 6.7, add the following new Subclauses 6.8 and 6.9:
6.8 Marking for tracks using other circuits

In addition to the above markings and information, the following details shall be given in the

manufacturer's instructions supplied with tracks using control signals via conductors originally

designed for mains supply:

• Instructions for the safe connection of control signal conductors if any misconnection could

inadvertently reduce the required electrical insulation between circuits.
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IEC 60570:2003/AMD2:2019 – 5 –
© IEC 2019
6.9 Marking for track suitable for supplying emergency luminaires

In addition to the above markings and information, the following details shall be given in the

manufacturer’s instructions:

• for track systems designed to operate centrally supplied emergency luminaires: a warning

that the track and components shall be connected to a system designed to supply

emergency luminaires, to ensure the correct operating of emergency luminaires on the

whole system;

• for track systems used to supply a self-contained emergency luminaire: information that

the supply line for battery recharging shall be un-switched.
7 General requirements and ratings

Replace the first sentence of the third paragraph, modified by Amendment 1, with the

following new text:

The rated voltage between poles for a class I track system shall not exceed 440 V and for a

class III system the rated voltage shall not exceed SELV voltage limits as specified in

IEC 60598-1.
8 Construction
Replace the first paragraph with the following new text:

The provisions of section four of IEC 60598-1 apply together with the requirements in 8.1 to

8.13 with the exception of 4.11.6 which is replaced by 8.9.

Annex A provides details regarding the test to be carried out on luminaires supplied by track

systems using control signals via conductors designed for supply voltage.
Compliance shall be checked by carrying out the tests in Annex A as applicable.
8.6

Replace the third paragraph starting with "To test the suspension…" with the following new

text:

To test the suspension of both track and luminaires, suspension devices for luminaires,

including adaptors, are mounted on the track as in normal use specified by the track

manufacturer and are subjected for 1 h to a load equal to 5 times the specified load as

claimed by the manufacturer. The minimum claimed load value for adaptor and for suspension

devices for luminaires shall be:
– 50 N for class I and class II;
– 10 N for class III;

– the weight of the luminaire for adaptors which are integrated in the luminaire.

NOTE The adaptors according to the third bullet are intended for use by luminaire manufacturers only and are not

for retail sale.
This test shall be made at a temperature of t of the track +15 °C.
Replace the fourth paragraph with the following new text:
---------------------- Page: 7 ----------------------
– 6 – IEC 60570:2003/AMD2:2019
© IEC 2019

After the test, the components, the track and its fixing devices shall not be deformed to such

an extent that safety would be impaired and the components shall not have become detached

from the track.
Replace the seventh and eighth paragraphs with the following new paragraphs:

A bending moment of 2,5 Nm is then applied to the luminaire suspension/fixing device, the

force being applied for 1 min in a direction parallel to the track axis and for 1 min in a

direction perpendicular to this axis.

After the test, the luminaire suspension/fixing device and other parts of the track system shall

not be deformed to such an extent that safety would be impaired and the suspension device

shall not have become loose.
8.11
Replace existing Subclause 8.11 with the following new Subclause 8.11:
8.11 Interchangeability

8.11.1 Care shall be taken in the design and manufacture of adaptors for use with a

particular track system to ensure interchangeability and safety in use. In particular, no

connections between live conductors and earth conductors shall be possible.

Tests shall be conducted with approved track samples retained by the test house or samples

of the approved track provided by the manufacturer.
The minimum insulation between supply circuits (LV, SELV) and the housing and
control/signal interface shall be at least those specified in IEC 60598-1.

SELV circuits shall not use conductors designed for mains supply; this restriction also applies

to control signal and audio circuits which may be provided from a SELV source.
SELV circuits shall comply with the requirements for Class III track.

Track conductors designed for the supply connection to luminaires may be used for other than

SELV control signal purposes if the insulation for those conductors meets the requirements

for relevant mains supply voltages.

It shall not be possible to reduce the minimum creepage distances and clearances between

different circuits, as specified in IEC 60598-1, neither along the track, nor inside the

components. This requirement shall be ensured even in the case of connection of different

adaptors/components with different purposes of the same manufacturer in the track body, with

the only exception of track using control signals via conductors originally designed for mains

supply and marked accordingly.
The track and adaptor shall comply with all appropriate parts of IEC 60598-1.

8.11.2 The opening in the insulating liner of a class I track/track sector giving access to the

conductor shall have a maximum dimension of 3,0 mm and the conductor shall be recessed

into the insulating liner by at least 1,7 mm.
The contacts of class III adaptors shall either:

• have a minimum dimension of 3,5 mm in any orientation that can be presented to the

conductor opening in the insulating liner of any class I track sector, or
---------------------- Page: 8 ----------------------
IEC 60570:2003/AMD2:2019 – 7 –
© IEC 2019

• the contacts shall not protrude by more than 1 mm from a surface that has a minimum

dimension of 3,5 mm in any orientation that can be presented to the conductor opening in

the insulating liner of any class I track/track sector (see example in Figure 4).

NOTE 1 This second requirement ensures, by requiring maximum protruding dimension of 1 mm, that there is no

electrical contact between the contacts of class III adaptors and the mains voltage conductors (being recessed by

at least 1,7 mm).

NOTE 2 For clarity, the dimensions of the class I tracks and the class III adaptor contacts are measured in the

positions shown in Figures 2, 3 and 4.
Compliance is checked by measurements.

The opening in the insulation liner of the track system giving access to the control interface

conductor of the following type:
– control signal, with basic insulation to LV supply,
– control signal, not insulated to LV supply
shall comply with the requirements of 8.11.2 for Class I tracks.

The opening in the insulation liner of the track system giving access to the SELV control

interface conductor shall comply with the requirements of 8.11.1 for Class III tracks with the

exception of the minimum dimension that can be reduced.

NOTE 3 For clarity, the dimensions of the class I tracks and the class III adaptor contacts are measured in the

positions shown in Figures 2 and 3.
Compliance is checked by inspection and measurements.
8.12
Replace existing Subclause 8.12 with the following new Subclause 8.12:

8.12 Track systems designed to supply emergency lighting luminaires shall prevent any

accidental disconnection (in accordance with 22.11.1 of IEC 60598-2-22:2014 and
IEC 60598-2-22:2014/AMD1:2017).

Track adaptors and luminaire suspension devices to be used with emergency luminaires

which are intended to be used for a display lighting application, shall include a system for

locking the luminaire in a fixed aiming direction and fixed position on the track. The locking

system shall ensure that the luminaire can be locked in its final aiming position and location

and that it cannot be adjusted or moved without the aid of a tool, and the emergency lighting

function of the luminaire cannot be switched off without the aid of a tool.
NOTE A display lighting application is normally within arm reach.
Add, at the end of 8.12, the following new Subclause 8.13:

8.13 A track system used for centrally supplied emergency lighting shall provide double or

reinforced insulation between the conductors of the emergency lighting circuit and the normal

mains circuit.

The working voltage to be used to design the insulation between different circuits shall be the

higher rated voltage of the different circuits.

In a track system for centrally supplied emergency lighting, terminals identification shall

always be consistent within the entire system.
---------------------- Page: 9 ----------------------
– 8 – IEC 60570:2003/AMD2:2019
© IEC 2019
9 Creepage distances and clearances
In the first paragraph, replace "9.1 and 9.2" with "9.1 to 9.3".
At the end of Subclause 9.2, add the following new Subclause 9.3:

9.3 For Class I track systems it shall be ensured, by design, that any access to live parts

closer than the values given in Table 11.1A of IEC 60598-1 for reinforced insulation is

prevented.

Compliance is checked by measuring the distance between live parts and a metal foil pressed

into any openings of the fully assembled track system with the probe 1 of IEC 61032:1997

(50 mm sphere) in every possible direction.
11 External and internal wiring
Replace the second and third paragraphs with the following new paragraph:

If a supply cable is provided, the cross-sectional area of the conductors shall be compatible

with the rated current of the track system.
13 Protection against electric shock

In the first paragraph, delete the text: ", except where the track system/sector openings is

classified class III for operation from a SELV supply".
13.1
Add, between the first and second paragraphs, the following new text:
The test shall not be carried out on:
• SELV circuits;
• circuits with at least basic insulation to LV.
15 Insulation resistance and electric strength
15.2
Replace the existing text with the following new text:

Track systems that comply with the requirements of this document, are deemed to comply

with the provisions in 10.3 of IEC 60598-1 without testing.
18 Terminals and connections for external wiring
In the first paragraph, correct the cross references to IEC 60598-1 as follows:
Replace "15.9.1" with "15.6.3.1", and replace "15.9.2" with "15.6.3.2".

For the subsequent sub-headings of Clause 18 correct the cross references to IEC 60598-1

as follows:
---------------------- Page: 10 ----------------------
IEC 60570:2003/AMD2:2019 – 9 –
© IEC 2019
Replace "15.9.1.1" with "15.6.3.1.1"
Replace "15.9.1.3" with "15.6.3.1.3"
Replace "15.9.2.3" with "15.6.3.2.3"
Replace "15.9.2.4" with "15.6.3.2.4"
Figure 3

Replace the title of Figure 3, modified by Amendment 1, with the following new title:

Figure 3 – Measurement positions for typical class I tracks (not to scale)
Add, after Figure 3, the following new Figure 4:
e ≤ 1 mm
c ≥ 3,5 mm
Figure 4 – Measurement positions for typical class III adaptor
contacts with protruding contacts
Add, after Figure 4, the following new Annex A
---------------------- Page: 11 ----------------------
– 10 – IEC 60570:2003/AMD2:2019
© IEC 2019
Annex A
(informative)
Test to be carried out on luminaires supplied
with track systems providing control signals

The possibility to establish an unsafe connection between supply conductors and control

signals shall be prevented by the track system construction or by the luminaire.

Unsafe connection may be prevented by a special mechanical key in the track system design

or, in the case of a track system using control signals via supply conductor, by having an

adequate protective measure in the luminaire such that any unintentional contact from the LV

supply to the control circuit will not cause a safety failure in the luminaire.
Compliance is checked by the following tests:

In the case of a track system using a mechanical key system to prevent an unsafe connection,

no additional requirements apply to the luminaire.
In all other cases the following requirements shall be applied to the luminaire.

The luminaire shall not become unsafe when the highest possible supply voltage is applied

between control signals contacts until steady state condition is reached.

During and after the test there shall be no emission of flames or molten material from the

luminaire or production of flammable gases. The protection against contact to live parts shall

not be impaired. Insulation shall be adequate to exposed parts of the luminaire and checked

by the electric strength and insulation resistance tests as required in section ten of

IEC 60598-1.

NOTE This requirement is considered sufficient as, in the case of basic insulation failure (wrong connection

between adaptor and track system), the supplementary insulation based on working voltage equal to the rated

luminaire supply voltage provided is considered sufficient.
___________
---------------------- Page: 12 ----------------------
– 12 – IEC 60570:2003/AMD2:2019
© IEC 2019
AVANT-PROPOS
Le présent amendement a été établi par le sous-comité 34D: Luminaires, du comité
d'études 34 de l'IEC: Lampes et équipements associés.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
34D/1502/FDIS 34D/1517/RVD

Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant

abouti à l'approbation de cet amendement.

Le comité a décidé que le contenu de cet amendement et de la publication de base ne sera

pas modifié avant la date de stabilité indiquée sur le site web de l'IEC sous

"http://webstore.iec.ch" dans les données relatives à la publication recherchée. A cette date,

la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
_____________
1 Domaine d'application

Remplacer le deuxième tiret, modifié par l'Amendement 1, par le nouveau tiret suivant:

– un système TBTS sans mise à la terre de protection (classe III) et un courant assigné

n'excédant pas 25 A par conducteur, ou
Ajouter le nouveau texte suivant à la fin du domaine d'application:

Le présent document ne couvre pas l'interopérabilité ou la compatibilité en ce qui concerne

les performances entre différents systèmes de rails. La protection contre une compatibilité

présentant des risques entre les circuits de classe I et de classe III est couverte par le

présent document.

Le système de rail peut intégrer des circuits auxiliaires destinés à la commande ou à un

signal audio autre que l'alimentation.

NOTE 1 Actuellement, les types de systèmes de commande suivants sont disponibles sur le marché:

– signal de commande, avec isolation principale par rapport à l'alimentation BT (par exemple, interface

d'éclairage adressable numérique, signal de 1 V à 10 V en courant continu);

– signal de commande, avec isolation TBTS/TBTP par rapport à l'alimentation BT (par exemple DMX);

– signal de commande, sans isolation par rapport à l'alimentation BT (par exemple, commande par

bouton-poussoir/coupure de phase/gradation par pas).

Les systèmes de rails peuvent également intégrer des conducteurs spécifiquement identifiés

pour les luminaires d'éclairage de secours.
---------------------- Page: 13 ----------------------
IEC 60570:2003/AMD2:2019 – 13 –
© IEC 2019

NOTE 2 Les exigences concernant la TBTP sont à l'étude, en attente de modification de l'IEC 60598-1.

2 Références normatives

Remplacer la référence à l'IEC 60598-1:1999 par la nouvelle référence et note suivantes:

IEC 60598-1:2014, Luminaires – Partie 1: Exigences générales et essais
IEC 60598-1:2014/AMD1:2017

NOTE La 9 édition de l'IEC 60598-1 est en cours d'élaboration. Stade au moment de la publication:

IEC PRVC 60598-1:2019. Cette 9 édition fournit un lien croisé entre l'IEC 60598-1 et l'IEC 60570 pour les

luminaires montés sur rails.
Ajouter la nouvelle référence suivante:

IEC 60598-2-22:2014, Luminaires – Partie 2-22: Règles particulières – Luminaires pour

éclairage de secours
IEC 60598-2-22:2014/AMD1:2017
3 Termes et définitions
3.1
système de rail pour luminaires
Ajouter les notes à l'article suivantes:

Note 1 à l'article: Le système de rail peut intégrer des circuits auxiliaires destinés à la commande ou à un signal

audio autre que l'alimentation; le système de rail peut être utilisé pour alimenter des luminaires dans lesquels les

signaux de commande sont fournis par le biais de conducteurs d'alimentation ou d'un circuit raccordé à

l'alimentation par des conducteurs séparés (alimentation principale, par exemple).

Note 2 à l'article: Le système de rail peut intégrer des circuits identifiés pour assurer la recharge de la batterie

(pour les blocs autonomes d'éclairage de secours).
3.10
rail de classe I
Ajouter les notes à l'article suivantes:

Note 1 à l'article: Le rail peut intégrer des circuits auxiliaires destinés à la commande ou aux signaux audio. Ces

circuits auxiliaires peuvent employer des conducteurs conçus à l'origine pour l'alimentation par le réseau.

Note 2 à l'article: Le système de rail peut intégrer des circuits identifiés pour assurer la recharge de la batterie

(pour les blocs autonomes d'éclairage de secours).
3.11
rail de classe III
Remplacer la note existante par la nouvelle note à l'article suivante:

Note 1 à l'article: Le rail peut intégrer des circuits auxiliaires destinés à la commande ou aux signaux audio TBTS.

Ces circuits auxiliaires peuvent employer des conducteurs auxiliaires séparés
...