IEC 60730-2-9:2015/AMD2:2020

Amendment 2 - Automatic electrical controls - Part 2-9: Particular requirements for temperature sensing control

Amendment 2 - Dispositifs de commande électrique automatiques - Part 2-9: Exigence particulières pour les dispositifs de commande thermosensibles

General Information

• Status: Published
• Publication Date: 08-Apr-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: TC 72 - Automatic electrical controls
• Drafting Committee: WG 6 - TC 72/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 24-Apr-2020
• Completion Date: 09-Apr-2020

Relations

• Amends: IEC 60730-2-9:2015 - Automatic electrical controls - Part 2-9: Particular requirements for temperature sensing controls
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60730-2-9 ®
Edition 4.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Automatic electrical controls –
Part 2-9: Particular requirements for temperature sensing controls

Dispositifs de commande électrique automatiques –
Partie 2-9: Exigences particulières pour les dispositifs de commande
thermosensibles
IEC 60730-2-9:2015-05/AMD2:2020-04(en-fr)

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IEC 60730-2-9 ®
Edition 4.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Automatic electrical controls –

Part 2-9: Particular requirements for temperature sensing controls

Dispositifs de commande électrique automatiques –

Partie 2-9: Exigences particulières pour les dispositifs de commande

thermosensibles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.120 ISBN 978-2-8322-8066-9

– 2 – IEC 60730-2-9:2015/AMD2:2020
© IEC 2020
FOREWORD
This amendment has been prepared by IEC technical committee 72: Automatic electrical
controls.
The text of this amendment is based on the following documents:
FDIS Report on voting
72/1225/FDIS 72/1236/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• withdrawn,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.
_____________
11.4 Actions
Add the following new subclauses:
11.4.11 Type 1.H or 2.H action
Additional subclauses:
11.4.11.101 For this test, the reset mechanism of the control will be held in the reset position
for the duration of the test from 11.4.11.102 to 11.4.11.104. The verification of the automatic
non-resetting above –35 °C will be carried out by 11.4.11.105 to 11.4.11.106. For SOD, the
verification of the automatic non-resetting above either +0 °C or –35 °C will be carried out by
11.4.11.105 to 11.4.11.106, as declared in item 103 of Table 1.
11.4.11.102 With the reset mechanism held in the reset position at room temperature,
continuity across contacts is observed by a low-energy circuit, 0,05 A maximum.
11.4.11.103 The control’s sensing element is then installed in an air circulating chamber or
an oil bath and the control’s switch head is installed as in 14.5.1. When the whole control is
declared as the sensing element, the whole control is placed in an air-circulating chamber.
The control or the control’s sensing element is adjusted for the maximum set point
temperature. The chamber or oil bath temperature shall be determined by positioning a
thermocouple wire adjacent to the control under test. The chamber or oil bath temperature is
then raised from room temperature and held at approximately 10 K below the set point until
temperatures stabilize. The chamber or oil bath temperature is then raised at a rate of not more
than 0,5 K per minute until the contact operates. Indication of contact separation is observed
by applying the method of 11.4.11.102.

IEC 60730-2-9:2015/AMD2:20 – 3 –
© IEC 2020
11.4.11.104 After the control has operated and with the reset mechanism still held in the reset
position, the temperature of the chamber or oil bath is then reduced to determine if the control
automatically resets. Verification of contact closure is done by applying the method in
11.4.11.102.
11.4.11.105 The whole control or the control’s sensing element is then installed in an air
circulating chamber or oil bath again and the control’s switch head (if applicable) is installed
as in 14.5.1 with the reset mechanism in its normal condition. The chamber or oil bath
temperature shall be determined by positioning a thermocouple wire adjacent to the control
under test. The chamber or coil bath temperature is raised from room temperature and held at
approximately 10 K below the set point until temperatures stabilize. The chamber or oil bath
temperature is then raised at a rate of not more than 0,5 K per minute until the contact operates.
Indication of contact separation is observed by applying the method of 11.4.11.102.
11.4.11.106 After the control has operated, the temperature of the chamber is allowed to cool
down to either +0 °C or –35 °C. Indication of contact separation is observed by applying the
method of 11.4.11.102.
11.4.12 Type 1.J or 2.J action
Additional subclauses:
11.4.12.101 For this test, the reset mechanism of the control will be held in the reset position
for the duration of the test from 11.4.12.102 to 11.4.12.104. The verification of the automatic
non-resetting above –35 °C will be carried out by 11.4.12.105 to 11.4.12.106. For SOD, the
verification of the automatic non-resetting above either +0 °C or –35 °C will be carried out by
11.4.12.105 to 11.4.12.106, as declared in item 103 of Table 1.
11.4.12.102 With the reset mechanism held in the reset position at room temperature, contact
separation is observed by a low-energy circuit, 0,05 A maximum.
11.4.12.103 The control’s sensing element is then installed in an air circulating chamber or
oil bath and the control’s switch head is installed as in 14.5.1. When th
...