EN ISO 25745-2:2015

SLOVENSKI STANDARD
01-junij-2015
Energetska učinkovitost dvigal (liftov), tekočih stopnic in tekočih stez - 2. del:
Energetski izračun in razvrstitev liftov (ISO 25745-2:2015, popravljena različica
2015-12-15)
Energy performance of lifts, escalators and moving walks - Part 2: Energy calculation
and classification for lifts (elevators) (ISO 25745-2:2015, Corrected version 2015-12-15)
Energieeffizienz von Aufzügen, Fahrtreppen und Fahrsteigen - Teil 2:
Energieberechnung und Klassifizierung von Aufzügen (ISO 25745-2:2015, korrigierte
Fassung 2015-12-15))
Performance énergétique des ascenseurs, escaliers mécaniques et trottoirs roulants -
Partie 2: Calcul énergétique et classification des ascenseurs (ISO 25745-2:2015,
Version corrigée 2015-12-15)
Ta slovenski standard je istoveten z: EN ISO 25745-2:2015
ICS:
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 25745-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2015
EUROPÄISCHE NORM
ICS 91.140.90
English Version
Energy performance of lifts, escalators and moving walks -
Part 2: Energy calculation and classification for lifts
(elevators) (ISO 25745-2:2015, Corrected version 2015-
12-15)
Performance énergétique des ascenseurs, escaliers Energieeffizienz von Aufzügen, Fahrtreppen und
mécaniques et trottoirs roulants - Partie 2: Calcul Fahrsteigen - Teil 2: Energieberechnung und
énergétique et classification des ascenseurs (ISO Klassifizierung von Aufzügen (ISO 25745-2:2015)
25745-2:2015, Version corrigée 2015-12-15)
This European Standard was approved by CEN on 22 November 2014.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25745-2:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 25745-2:2015) has been prepared by Technical Committee ISO/TC 178 “Lifts,
escalators and moving walks” in collaboration with Technical Committee CEN/TC 10 “Lifts, escalators
and moving walks” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2015, and conflicting national standards shall
be withdrawn at the latest by October 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 25745-2:2015, Corrected version 2015-12-15 has been approved by CEN as
INTERNATIONAL ISO
STANDARD 25745-2
First edition
2015-04-01
Corrected version
2015-12-15
Energy performance of lifts, escalators
and moving walks —
Part 2:
Energy calculation and classification
for lifts (elevators)
Performance énergétique des ascenseurs, escaliers mécaniques et
trottoirs roulants —
Partie 2: Calcul énergétique et classification des ascenseurs
Reference number
ISO 25745-2:2015(E)
©
ISO 2015
ISO 25745-2:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

ISO 25745-2:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Data collection and analysis tools . 2
5 Calculation of energy consumption . 3
5.1 Methodology . 3
5.2 Calculation of running energy per day . 3
5.2.1 Usage and number of starts per day . 3
5.2.2 Average travel distance . 4
5.2.3 Average running energy per metre . 4
5.2.4 Start/stop energy consumption . 4
5.2.5 Running energy of an average cycle with empty car . 5
5.2.6 Daily running energy . 5
5.3 Calculation of non-running (idle/standby) energy consumption per day . 6
5.3.1 Running time per day . 6
5.3.2 Non-running time per day . 7
5.3.3 Time ratios of idle/standby modes . 7
5.3.4 Daily non-running (idle/standby) energy consumption . 8
5.4 Total energy consumption per day . 8
5.5 Total energy consumption per year . 8
5.6 Method for determining the daily energy consumption for energy storage systems . 8
6 Lift energy efficiency classification . 9
6.1 Rationale. 9
6.2 Performance level for running . 9
6.3 Performance levels for idle/standby.10
6.4 Classification of energy performance of the lift .10
7 Specific running energy for the reference cycle .11
8 Reporting .11
Annex A (informative) Specific usage category .13
Annex B (informative) Example calculation .14
Annex C (informative) Symbols .16
Bibliography .18
ISO 25745-2:2015(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 178, Lifts, escalators and moving walks.
This corrected version of ISO 25745-2:2015 incorporates the following corrections: minus signs have
been replaced by plus signs in Formulae (9), (10) and (11); references in the Bibliography have been
updated and corrected.
ISO 25745 consists of the following parts, under the general title Energy performance of lifts, escalators
and moving walks:
— Part 1: Energy measurement and verification
— Part 2: Energy calculation and classification for lifts (elevators)
— Part 3: Energy calculation and classification for escalators and moving walks
iv © ISO 2015 – All rights reserved

ISO 25745-2:2015(E)
Introduction
This International Standard has been prepared in response to the rapidly increasing need to ensure
and to support the efficient and effective use of energy. This International Standard provides
a) a method to estimate energy consumption on a daily and an annual basis for lifts, and
b) a method for energy classification of new, existing, or modernised lifts.
This International Standard is intended to be a reference for the following parties:
— building developers/owners to evaluate the energy consumption of various lifts;
— building owners and service companies when modernising installations including reduction of
energy consumption
— the installers and maintenance providers of lifts;
— consultants and architects involved in specification of lifts.
— inspectors and other third parties providing energy classification services.
The total energy consumption over the entire life cycle of lifts consists of the energy to manufacture,
install, operate, and the disposal of lifts. However, for the purpose of this International Standard, only
operating energy (running, idle, and standby) performance is considered.
In the preparation of this International Standard, Technical Committee ISO/TC 178, Subcommittee WG10
has initiated extensive research, which included over 4 500 simulations of typical lift installations. The
results of this research have been used to provide the numerical values shown in Tables 2 to 4.
This International Standard only considers traction, hydraulic and positive drive lifts, but can be used
as a reference for alternative technologies.
This International Standard can be used in relationship with national/regional jurisdictional energy
performance purposes.
It is assumed that whenever the energy performance of a lift is assessed to this International Standard,
all components of the lift have been designed in accordance with usual engineering practice and
calculation codes, are of sound mechanical and electrical construction, are made of materials with
adequate strength and of suitable quality, are free of defects, are kept in good repair and working order,
and have been selected and installed so that foreseeable environmental influences and special working
conditions have been considered.
INTERNATIONAL STANDARD ISO 25745-2:2015(E)
Energy performance of lifts, escalators and moving walks —
Part 2:
Energy calculation and classification for lifts (elevators)
1 Scope
This part of ISO 25745 specifies the following:
a) a method to estimate energy consumption based on measured values, calculation, or simulation, on
an annual basis for traction, hydraulic, and positive drive lifts on a single unit basis;
b) energy classification system for new, existing, and modernized traction, hydraulic, and positive
drive lifts on a single unit basis;
This part of ISO 25745 applies to passenger and goods passenger lifts with rated speeds greater than
0,15 m/s and only considers the energy performance during the operational portion of the life cycle
of the lifts.
NOTE 1 For other types of lifts (e.g. service lifts, lifting platforms, etc.), this part of ISO 25745 can be taken
as a reference.
This part of ISO 25745 does not cover energy aspects, which affect the measurements, calculations, and
simulations, such as the following:
a) hoistway lighting;
b) heating and cooling equipment in the lift car;
c) machine room lighting;
d) machine room heating, ventilation, and air conditioning;
e) non-lift display systems, CCTV security cameras, etc.;
f) non-lift monitoring systems (e.g. building management systems, etc.);
g) effect of lift group dispatching on energy consumption;
h) environmental conditions;
i) consumption through the power sockets;
j) lifts whose travel includes an express zone.
NOTE 2 An express zone is unlikely to affect the average car load but can significantly affect the average
travel distance.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 25745-1, Energy performance of lifts, escalators and moving walks — Part 1: Energy measurement
and verification
ISO 25745-2:2015(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 25745-1 and the following apply.
NOTE For symbols, see Annex C.
3.1
average cycle
cycle of one up and one down trip each covering the average travel distance of the target installation
including two complete door cycles
3.2
express zone
section of the lift well where there are no landing entrances whose length is more than three average
floor heights
3.3
load factor
ratio between the running energy used by a car carrying an average load and the running energy
with an empty car
Note 1 to entry: The average load that a car carries is given in Table 3.
3.4
short cycle
cycle during which the empty car is run for a travel distance of at least one-quarter of the total travel
height with the travel distance centred around the mid-point of the travel height and back to the
starting point over a sufficient distance for the lift car to reach stable rated speed in both directions
including two complete door cycles
3.5
trip(s)
movement(s) from a starting (departure) landing to the next stopping (arrival) landing not
including re-levelling
4 Data collection and analysis tools
The energy values (running energy, idle, 5 min standby, and 30 min standby power) used to estimate
annual energy consumption can be obtained using the energy measurement methodologies as specified
in ISO 25745-1 or by calculation or simulation.
Energy measurements can be taken during commissioning of a new lift or during the life of an existing
lift or on a test facility.
Running energy measurements can be achieved by
a) running the empty lift car between one terminal landing and the other terminal landing and then
back to the first terminal landing, including the energy used during the two door operations, in
accordance with the reference cycle as specified in ISO 25745-1, and
b) running the empty lift car from a defined landing to a predetermined point in the lift well and then
back to the defined landing (short cycle), including the energy used during the two door operations,
in accordance to the measurement procedures specified in ISO 25745-1.
Each cycle comprises two trips.
The running energy of the short cycle shall be determined with the travel centred on the mid-point
between the defined landing and the predetermined point, in order to reduce inaccuracies due the
influence of suspension means, travelling cables, etc. The travel of the short cycle shall be at least 1/4 of
the total travel height. However, the lift shall always reach rated speed during the cycle. For lifts with
two stops, no short running cycle evaluation is needed because the lift always runs the full travel height.
2 © ISO 2015 – All rights reserved

ISO 25745-2:2015(E)
Measurement b) allows a test facility to be arranged to match the terminal to terminal travel distance
of a target installation with a specified rated speed.
The determination of the 30 min standby power is only necessary if any lift energy consuming
components switch to a lower energy level after a time exceeding 5 min.
The standby power values shall be determined taking into account the manufacturer’s powering down
sequence times of the energy consuming components when the lift is in operation. The transition times
from standby modes shall be indicated in the documentation of the installation.
NOTE Some manufacturers can have a number of standby states depending on their powering down
sequence and recovery times.
5 Calculation of energy consumption
5.1 Methodology
Th
...