IEC 61800-5-1:2007/AMD1:2016

IEC 61800-5-1 ®
Edition 2.0 2016-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Adjustable speed electrical power drive systems –
Part 5-1: Safety requirements – Electrical, thermal and energy

Entraînements électriques de puissance à vitesse variable –
Partie 5-1: Exigences de sécurité – Electrique, thermique et énergétique

IEC 61800-5-1:2007-07/AMD1:2016-08(en-fr)

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IEC 61800-5-1 ®
Edition 2.0 2016-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Adjustable speed electrical power drive systems –

Part 5-1: Safety requirements – Electrical, thermal and energy

Entraînements électriques de puissance à vitesse variable –

Partie 5-1: Exigences de sécurité – Electrique, thermique et énergétique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130 ISBN 978-2-8322-3611-6

– 2 – IEC 61800-5-1:2007/AMD1:2016
© IEC 2016
FOREWORD
This amendment has been prepared by subcommittee SC 22G: Adjustable speed electric
drive systems incorporating semiconductor power converters, of IEC technical committee 22:
Power electronic systems and equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
22G/338/FDIS 22G/342/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 web site 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• withdrawn,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.
_____________
2 Normative references
Add the following normative references:
IEC 60947-4-1:2009, Low-voltage switchgear and controlgear – Part 4-1: Contactors and
motor-starters – Electromechanical contactors and motor-starters
IEC 60947-4-1:2009/AMD1:2012
IEC 60364-4-41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety –
Protection against electric shock
IEC 60364-4-41:2005/AMD1:—
3 Terms and definitions
Add the following new terms and definitions:
3.45
electronic motor overload protection
PDS/CDM/BDM circuitry which protects a motor during overload conditions by reducing
current to the motor
____________
Under preparation. Stage at the time of publication: IEC DEC 60364-4-41:2016.

© IEC 2016
Note 1 to entry: The protection circuitry is usually a combination of hardware and software.
Note 2 to entry: This protection is typically achieved through an algorithm based on the I t of the current to the
motor.
3.46
electronic power output short-circuit protection circuitry
circuitry integral to PDS/CDM/BDM that acts to significantly reduce current flow to the power
output upon sensing a short-circuit condition
Note 1 to entry: The protection circuitry is usually a combination of hardware and software.
3.47
thermal memory
ability of an overload protective system to approximate the heating and cooling of a protected
motor during operation
3.48
thermal memory retention
ability to retain a representation of the thermal state of a motor prior to shutdown or loss of
power
Note 1 to entry: Typically, this information will be used by the overload protective system to approximate the
thermal state of the motor upon restart.
Note 2 to entry: This may include an ongoing reduction of the thermal representation to reflect cooling of the motor
during shutdown or loss of power.
3.49
trip
controlled rapid reduction or elimination of the transfer of energy to any device or process
initiated by a detected fault or abnormal operating condition
4.3.6.1.4 Supply earthing systems
Add, at the end of the first bullet point, the following new sentence:
A corner-earthed system is a TN system with one phase earthed.
Add, at the end of the second bullet point, the following new sentence:
A corner-earthed system is a TT system with one phase earthed.
Add, after the third bullet point, the following new paragraph:
In a PDS designed for operation on a corner-earthed system, the
• insulation between phases of the mains supply, including the earthed phase, may be
designed for functional insulation according to clause 4.3.6.3, and
• circuits within the PDS/CDM/BDM directly connected to any phase of a corner-earthed
system shall be separated from earthed parts by at least basic insulation.
Table 7 — Insulation voltage for low voltage circuits
Replace, at the bottom of Table 7, Note 1 by the following new paragraph;
Interpolation of system voltage is not permitted when determing the impulse voltage for mains supply. Interpolation
of system voltage is permitted when determining the temporary overvoltage for mains supply.
Replace, at the bottom of Table 7, the indication "NOTE 2" by "NOTE".

– 4 – IEC 61800-5-1:2007/AMD1:2016
© IEC 2016
Add, at the bottom of Table 7, after the note, the following indication:
SOURCE: IEC 62477-1:2012, Table 9
4.3.6.4.1 Determination
Replace, in the fourth paragraph, the first bullet point by the following new bullet point:
• for low-voltage PDS, the value corresponding to the next higher impulse voltage, or 1,6
times the temporary overvoltage, or 1,6 times the working voltage shall be used (see
IEC 60664-1:2007, 5.1.6 and IEC 62477-1: 2012, 4.4.7.4.1);
4.3.6.8.3.1 General
Add, after the first paragraph, the following new paragraph:
4.3.6.8.3 also applies to components providing insulation. See 4.3.6.8.1 for the use of
component standards.
4.3.9 Output short-circuit requirements
Add, after the first paragraph, the following new paragraphs:
The short-circuit evaluation of each power output of the CDM/BDM shall include short-circuits
of both
• phase to phase, and
• each phase to earth.
If the CDM/BDM provides galvanic isolation between all power ports and a power output, then
evaluation of phase to earth short-circuits for that specific power output, and any additional
power outputs with galvanic isolation, is not necessary.
Compliance with the requirement of IEC 60364-4-41:2005/AMD1:— , Clause 411 and Annex D
is shown by
• testing according to 5.2.3.6.5, or
• supplementary protective equipotential bonding in accordance with IEC 60364-4-
41:2005/AMD1:—, 415.2.
The electronic power short-circuit protection circuitry relied on to demonstrate compliance
with the short-circuit test in 5.2.3.6.3 shall also comply with the requirement of 5.2.9.
NOTE IEC 60364-4-41:2005/AMD1:—, 411.3.2, provides more information about protection against indirect
contact in case of a short-circuit between hazardous live parts and protective earth.
Consideration shall be given to compliance with different type of system earthing (e.g. TN, TT,
IT or corner- earthed) as the short-circuit current to protective earth depends on the type of
system earthing.
NOTE Especially, the short-circuit fault current to earth is expected to be lower or equal to the rated output
current of the power output depending on system earthing.
For information requirements, see 6.3.7.
____________
Under preparation. Stage at the time of publication: IEC DEC 60364-4-41:2016.

© IEC 2016
4.4.5.2.7 Insulation requirements for coolant hoses
Add, after 4.4.5.2.7, the following new subclause:
4.4.6 Motor overload and overtemperature protection
4.4.6.1 Means of protection
A motor of a PDS shall be protected against overtemperature. Depending on the application
of the motor, one or more of the following means of protection for each motor driven shall be
selected by the PDS manufacturer:
a) thermal or electronic overload relay that complies with the applicable requirements in
IEC 60947-4-1;
b) a CDM/BDM with electronic motor overload protection according to 4.4.6.2, which might
include
i) thermal memory retention according to 4.4.6.3, and/or
ii) speed sensitivity according to 4.4.6.4.
c) a CDM/BDM with monitoring and automatic reduction of motor current based upon a
signal from a thermal sensor mounted in or on the motor according to 4.4.6.5;
d) an embedded motor thermal protection which disconnects the motor;
e) information in accordance with 6.3.8.1.
NOTE 1 a) and d) are the only possible motor overload protections in the case that several motors in parallel are
supplied from the same CDM/BDM motor power output.
For information requirements, see 6.3.8.
NOTE 2 In the United States, compliance with NFPA 70 overload protection according to NFPA 70:2014, 430.32
are achieved by a), b), c), or d); compliance with NFPA 70 ove
...