SIST EN 81-30:2026

SLOVENSKI STANDARD
01-maj-2026
Varnostna pravila za konstruiranje in vgradnjo dvigal (liftov) - Tovorna dvigala - 3.
del: Električna in hidravlična mala tovorna dvigala
Safety rules for the construction and installation of lifts - Lifts for the transport of goods
only - Part 30: Electric and hydraulic service lifts
Sicherheitsregeln für die Konstruktion und den Einbau von Aufzügen - Aufzüge für den
Transport von Gütern - Teil 30: Elektrisch und hydraulisch betriebene Kleingüteraufzüge
Règles de sécurité pour la construction et l'installation des ascenseurs - Ascenseurs
destinés uniquement au transport d'objets - Partie 30 : Monte-charge électriques et
hydrauliques
Ta slovenski standard je istoveten z: EN 81-30:2025
ICS:
91.140.90 Dvigala. Tekoče stopnice Lifts. Escalators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 81-30
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2025
EUROPÄISCHE NORM
ICS 91.140.90 Supersedes EN 81-3:2000+A1:2008, EN 81-
3:2000+A1:2008/AC:2009
English Version
Safety rules for the construction and installation of lifts -
Lifts for the transport of goods only - Part 30: Electric and
hydraulic service lifts
Règles de sécurité pour la construction et l'installation Sicherheitsregeln für die Konstruktion und den Einbau
des ascenseurs - Ascenseurs destinés uniquement au von Aufzügen - Aufzüge für den Transport von Gütern -
transport d'objets - Partie 30 : Monte-charge Teil 30: Elektrisch und hydraulisch betriebene
électriques et hydrauliques Kleingüteraufzüge
This European Standard was approved by CEN on 29 September 2025.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 81-30:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 7
1 Scope . 10
2 Normative references . 11
3 Terms and definitions . 14
4 Safety requirements and/or protective measures . 19
4.1 General . 19
4.2 Service lift well and machinery spaces . 19
4.2.1 General provision . 19
4.2.2 Accessible well – Accessible machinery space(s) . 20
4.2.3 Notices . 21
4.2.4 Well . 22
4.2.5 Notices in machinery spaces . 25
4.3 Carrier entrance . 25
4.3.1 General provisions . 25
4.3.2 Height and width of entrances . 25
4.4 Landing and carrier doors . 25
4.4.1 General provisions . 25
4.4.2 Sills, guides, door suspension . 26
4.4.3 Strength of doors and their frames . 26
4.4.4 Protection in relation to door operation . 27
4.4.5 “Carrier here” indication . 28
4.4.6 Locked and closed landing door check . 28
4.4.7 Locking and emergency unlocking . 28
4.4.8 Sliding doors with multiple, mechanically linked panels . 31
4.5 Carrier, counterweight and balancing weight . 32
4.5.1 Height of carrier . 32
4.5.2 Available carrier area and rated load . 32
4.5.3 Rated load and manufacturer’s name . 32
4.5.4 Walls, floor and roof of the carrier . 32
4.5.5 Apron and automatic bridging sills . 33
4.5.6 Carrier roof . 34
4.5.7 Counterweight and balancing weight . 34
4.6 Suspension and related protection means . 34
4.6.1 General . 34
4.6.2 Suspension . 34
4.6.3 Sheave, pulley, drum and rope diameter ratios, rope/chain terminations . 35
4.6.4 Rope traction . 36
4.6.5 Winding up of ropes for positive drive service lifts. 36
4.6.6 Distribution of load between the ropes or the chains . 36
4.6.7 Protection for sheaves, pulleys and sprockets . 37
4.7 Precautions against free fall, excessive speed, creeping of the carrier . 38
4.7.1 General provision . 38
4.7.2 Safety gear . 39
4.7.3 Rupture valve . 43
4.7.4 Restrictor, also one-way restrictor . 44
4.8 Guide rails, buffers . 45
4.8.1 General provisions concerning guide rails . 45
4.8.2 Guiding of the carrier, counterweight or balancing weight . 45
4.8.3 Buffers and fixed stops for carrier and counterweight/balancing weight . 45
4.9 Lift machine and associated equipment . 46
4.9.1 General provision . 46
4.9.2 Protection of machinery . 46
4.9.3 Lift machines for traction and positive service lifts . 46
4.9.4 Lift machine, jack and other hydraulic equipment for hydraulic service lifts . 50
4.10 Electric installations and appliances . 57
4.10.1 General provisions . 57
4.10.2 Contactors, contactor relays, components of safety circuits . 58
4.10.3 Protection of electrical equipment . 59
4.10.4 Main switches . 59
4.10.5 Electric wiring . 60
4.10.6 Lighting and socket outlets . 61
4.10.7 Electrical identification . 62
4.11 Protection against electric faults; failure analysis; controls; priorities . 62
4.11.1 Failure analysis and electric safety devices . 62
4.11.2 Controls – Final limit switches – Priorities . 67
5 Verification of the safety requirements and/or protective measures – Tests . 71
5.1 Technical compliance documentation . 71
5.2 Verification of design . 71
5.3 Verification tests before putting into use . 80
5.3.1 General . 80
5.3.2 Tests and verifications . 80
6 Information for use . 84
6.1 General . 84
6.2 Instruction handbook . 84
6.2.1 General . 84
6.2.2 Information . 84
6.2.3 Instructions for erection and dismantling . 86
6.2.4 Instructions for tests before putting into use . 87
6.2.5 Instruction for normal use . 87
6.2.6 Breakdown procedures . 87
6.2.7 Maintenance . 88
6.2.8 Verifications . 89
6.3 Logbook . 89
Annex A (normative) List of the electric safety devices . 91
Annex B (informative) Technical compliance documentation . 93
B.1 General . 93
B.2 Technical details and plans . 93
B.3 Electric schematic diagrams and hydraulic circuit diagrams . 94
Annex C (informative) List of significant hazards . 95
Annex D (informative) Construction of walls of service lift wells and landing doors facing a
carrier entrance . 98
Annex E (informative) Building interfaces . 99
E.1 General provisions . 99
E.2 Support of guide rails . 101
E.3 Ventilation of well and machinery spaces. 101
Annex F (normative) Electronic components – Failure exclusion . 103
Annex G (normative) Calculations of rams, cylinders, rigid pipes and fittings . 109
G.1 Calculation against over pressure . 109
G.2 Calculations of the jacks against buckling. 110
Annex H (informative) Information to the owner/user of a service lift . 115
H.1 General . 115
H.2 Means of access to machinery space(s) entrance of the service lift . 115
H.3 Maintenance work carried out from a step of a ladder . 115
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 116
Bibliography . 120
European foreword
This document (EN 81-30:2025) has been prepared by 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 June 2026, and conflicting national standards shall be
withdrawn at the latest by December 2027.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
This document is part of the EN 81 series of standards “Safety rules for the construction and installation
of lifts”. A list of all parts in a series can be found on the CEN website.
This document supersedes EN 81-3:2000+A1:2008.
In comparison with the previous edition, the following technical modifications have been made:
— All Essential Health and Safety Requirements from the Directive 2006/42/EC have been addressed.
Specifically added: EMC reference; verification of design; handbooks requirements for
erection/test/breakdown;
— Requirements have been updated, taking into account EN 81-20:2020 and EN 81-50:2020.
Specifically: carrier material flammability; machinery stopping; rope’s retainers; strength of the
doors and of the well, screens, partitions; definitions; data plates;
— Improvements in safety due to changes in proven technology have been reflected. Specifically:
performance levels; doors locking; electrical equipment;
— Changes in the state of the art have been incorporated. Specifically: ropes and terminations; lighting;
balancing weights; existing buildings; emergency electrical operation; fluid characteristics;
— Reported errors have been eliminated. Specifically: hydraulic formulae;
— The text has been clarified. Specifically: accessible/inaccessible well;
— References to other standards (according to the progress in that field) have been improved. All
references now include a date;
— Informative Annex “List of significant hazards” has been added;
— Informative Annex “Building interfaces” has been added;
— Informative Annex “Examinations and tests after important modifications or after accidents” has
been deleted;
— Annex ZA replaces the previous Annex ZA and Annex ZB. The new informative Annex ZA (on the
relationship with EU Directive 2006/42/EC) is now an integral part of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
0.1 General
This document is a type C standard as stated in EN ISO 12100:2010.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate in the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events
are covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
0.2 General notes
0.2.1 The object of this document is to define safety rules related to service lifts with a view to
safeguarding persons and objects against the risk of accidents associated with the normal use, inspection
1)
and maintenance operation of service lifts .
a) Persons to be safeguarded:
1) users;
2) maintenance and inspection personnel;
3) persons at the landings of the service lift and of the machinery space(s).
b) Property to be safeguarded:
1) loads in the carrier;
1)
Within CEN/TC 10 an interpretation committee has been established to answer questions about the spirit in
which the experts have drafted the various clauses of this standard. All such interpretations are published
within CEN/TS 81-11 until incorporated by amendment into the standards concerned.
2) components of the service lift installation;
3) building in which the service lift is installed.
0.2.2 A study has been made of the various possible hazards with service lifts; see Annex C of this
document.
0.3 Principles
0.3.1 This document does not repeat all the general technical rules applicable to every electrical,
mechanical, or building construction including the protection of building elements against fire.
It has, however, seemed necessary to establish certain requirements of good construction, either because
they are peculiar to service lift manufacture or because in the case of service lift utilization the
requirements can be more stringent than elsewhere.
0.3.2 The standard sets out only the requirements that materials and equipment have to meet in the
interests of safe operation of service lifts.
0.4 Assumptions
0.4.1 Relevant risks have been considered of each component that may be incorporated in a complete
service lift installation.
Rules have been drawn up accordingly.
0.4.2 Components are:
a) designed in accordance with usual engineering practice and calculation codes, taking into account all
failure modes;
b) of sound mechanical and electrical construction;
c) made of materials with adequate strength and of sound quality;
d) free of defects;
e) free from harmful materials, e.g. asbestos.
0.4.3 By design of the load bearing elements, a safe normal operation of the service lift is ensured for
loads ranging from 0 % to 100 % of the rated load.
0.4.4 The requirements of this document are such that the possibility of a failure of an electric safety
device complying with all the requirements of this document needs not to be taken into consideration.
0.4.5 Users have to be safeguarded against their own negligence and unwitting carelessness when
using the service lift in the intended way.
A user can, in certain cases, make one imprudent act. The possibility of two simultaneous acts of
imprudence and/or the abuse of instructions for use is not considered.
0.4.6 Persons are not transported inside the well.
0.4.7 Horizontal forces and energies to consider are indicated in the applicable clauses of the standard.
Typically, where not otherwise specified in this document, the energy exerted by a person, resulting in
an equivalent static force is:
a) 300 N;
b) 1 000 N where impact can occur.
0.4.8 With the exception of the items listed below, a mechanical device built according to good practice
and the requirements of this document will not deteriorate to a point of creating hazard without the
possibility of detection, provided that all of the instructions given by the manufacturer have been duly
applied.
The following mechanical failures are considered:
a) breakage of the suspension;
b) uncontrolled slipping of the ropes on the traction sheave;
c) breakage and slackening of all linkage by auxiliary ropes, chains and belts;
d) failure of a component associated with the main drive elements and the traction sheave;
e) rupture in the hydraulic system (jack excluded);
f) small leakage in the hydraulic system (jack included).
0.4.9 The possibility of devices providing protection against free fall or descent with excessive speed
not setting, should the carrier free fall from a stationary position at the lowest landing, before the carrier
strikes the buffer(s) or fixed stop(s) is considered acceptable.
0.4.10 When the speed of the carrier is linked to the electrical frequency of the mains the speed is
assumed not to exceed 115 % of the rated speed.
1 Scope
1.1 This document specifies the safety rules for the construction and installation of permanently
installed service lifts, with traction, positive, or hydraulic drive, serving defined landing levels, having a
carrier the interior of which is regarded as inaccessible to persons on account of its dimensions and
means of construction, suspended by ropes or chains or jack and moving between rigid guide rails
inclined not more than 15° to the vertical.
This document covers service lifts with rated load not exceeding 300 kg and not intended to transport
persons.
1.2 This document does not cover:
a) service lifts with drives other than those stated in 1.1;
b) services lifts having carrier with dimensions that exceed:
1) for floor area, 1,0 m ;
2) for depth, 1,0 m;
3) for height, 1,20 m. The height is not limited if the carrier comprises several permanent
compartments, each of which satisfies the above dimensions.
c) lifting appliances, such as paternosters, mines lifts, theatrical lifts, appliances with automatic caging,
skips and hoists for building and public works sites, ships hoists, platforms for exploration or drilling
at sea, construction and maintenance appliances;
d) safety during operations of transport, erection, repairs and dismantling of service lifts;
e) use of glass for the walls of the well, for the carrier and for the landing doors including their vision
panels;
f) hydraulic service lifts where the setting of the pressure relief valve exceeds 50 MPa;
g) any form of radiation except EMC (see 4.10.1.1.3);
h) installation in potentially explosive atmosphere, extreme climate conditions, seismic conditions,
transporting dangerous goods, etc.;
i) ambient temperature in the well and machinery space(s) lower than +5 °C and higher than +40 °C;
j) health and safety of animals.
However, this document can usefully be taken as a basis.
Noise and vibrations are not dealt with in this document as they are not considered a significant nor
relevant hazard for the actual type of the service lift.
Fire propagation is not dealt with in this document.
1.3 The well is regarded as accessible if the opening giving access have clear dimensions of at least
0,40 m x 0,50 m, and:
a) the horizontal depth of the well is greater than 1 m, or
b) the area of the well is greater than 1 m , or
c) the maintenance is intended to be carried out from the carrier roof or pit regardless the well
dimensions.
1.4 The machinery space is regarded as accessible if:
a) the door(s)/trapdoor(s) giving access have clear dimensions of at least 0,60 m x 0,60 m, and
b) the height of the passageway is at least 1,80 m.
NOTE A door about horizontal when closed is referred to as a trapdoor.
1.5 This document covers the safety requirements for service lifts with rated speeds up to 1 m/s.
1.6 This document is not applicable to service lifts which are installed before the date of its publication
as EN.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 81-50:2020, Safety rules for the construction and installation of lifts — Examinations and tests —
Part 50: Design rules, calculations, examinations and tests of lift components
EN 10305-1:2016, Steel tubes for precision applications — Technical delivery conditions — Part 1:
Seamless cold drawn tubes
EN 10305-2:2016, Steel tubes for precision applications — Technical delivery conditions — Part 2: Welded
cold drawn tubes
EN 10305-3:2023, Steel tubes for precision applications — Technical delivery conditions — Part 3: Welded
cold sized tubes
EN 10305-4:2016, Steel tubes for precision applications — Technical delivery conditions — Part 4:
Seamless cold drawn tubes for hydraulic and pneumatic power systems
EN 10305-6:2016, Steel tubes for precision applications — Technical delivery conditions — Part 6: Welded
cold drawn tubes for hydraulic and pneumatic power systems
EN 12015:2020, Electromagnetic compatibility — Product family standard for lifts, escalators and moving
walks — Emission
EN 12016:2013, Electromagnetic compatibility — Product family standard for lifts, escalators and moving
walks — Immunity
EN 12385-4:2002+A1:2008, Steel wire ropes — Safety — Part 4: Stranded ropes for general lifting
applications
EN 12385-5:2021+A1:2025, Steel wire ropes — Safety — Part 5: Stranded ropes for lifts
EN 13015:2001+A1:2008, Maintenance for lifts and escalators — Rules for maintenance instructions
EN 13411-3:2022, Terminations for steel wire ropes — Safety — Part 3: Ferrules and ferrule-securing
EN 13411-5:2003+A1:2008, Terminations for steel wire ropes — Safety — Part 5: U-bolt wire rope grips
EN 13411-6:2004+A1:2008, Terminations for steel wire ropes — Safety — Part 6: Asymmetric wedge
socket
EN 13411-7:2021, Terminations for steel wire ropes — Safety — Part 7: Symmetric wedge socket
EN 13411-8:2011, Terminations for steel wire ropes — Safety — Part 8: Swage terminals and swaging
EN 13501-1:2018, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 16005:2023+A1:2024, Power operated pedestrian doorsets — Safety in use — Requirements and test
methods
)
EN 50214:2006, Flat polyvinyl chloride sheathed flexible cables
EN 60068-2-6:2008, Environmental testing — Part 2-6: Tests — Test Fc: Vibration (sinusoidal) (IEC 60068-
2-6:2007)
EN 60068-2-27:2009, Environmental testing — Part 2-27: Tests — Test Ea and guidance: Shock
(IEC 60068-2-27:2008)
EN 60204-1:2018, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
(IEC 60204-1:2016)
EN 60204-32:2008, Safety of machinery — Electrical equipment of machines — Part 32: Requirements for
hoisting machines (IEC 60204-32:2008)
)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
)
EN 60947-5-1:2017, Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and
switching elements — Electromechanical control circuit devices (IEC 60947-5-1:2016)
)
EN 60947-5-5:1997, Low-voltage switchgear and controlgear — Part 5-5: Control circuit devices and
switching elements — Electrical emergency stop device with mechanical latching function (IEC 60947-5-
5:1997)
2)
As impacted by EN 50214:2006/AC:2007.
3)
As impacted by EN 60529:1991/A1:2000, EN 60529:1991/A2:2013, EN 60529:1991/A2:2013/AC:2019,
EN 60529:1991/AC:2016.
4)
As impacted by EN 60947-5-1:2017/AC:2020.
5)
As impacted by EN 60947-5-5:1997/A1:2005, EN 60947-5-5:1997/A11:2013, EN 60947-5-5:1997/A2:2017.

EN 61800-5-2:2017, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements —
Functional (IEC 61800-5-2:2016)
)
EN 61810-1:2015, Electromechanical elementary relays — Part 1: General and safety requirements
(IEC 61810-1:2015)
EN 61810-3:2015, Electromechanical elementary relays — Part 3: Relays with forcibly guided
(mechanically linked) contacts (IEC 61810-3:2015)
EN ISO 6743-4:2015, Lubricants, industrial oils and related products (class L) — Classification — Part 4:
Family H (Hydraulic systems) (ISO 6743-4:2015)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13849-1:2023, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design (ISO 13849-1:2023)
EN ISO 13857:2019, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2019)
7)
EN IEC 60664-1:2020, Insulation coordination for equipment within low-voltage supply systems —
Part 1: Principles, requirements and tests (IEC 60664-1:2020)
8)
EN IEC 60947-4-1:2019, Low-voltage switchgear and controlgear — Part 4-1: Contactors and motor-
starters — Electromechanical contactors and motor-starters (IEC 60947-4-1:2018)
9)
ISO 1219-1:2012, Fluid power systems and components — Graphical symbols and circuit diagrams —
Part 1: Graphical symbols for conventional use and data-processing applications
ISO 3864-1:2011, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety
signs and safety markings
IEC 60227-6:2001, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V —
Part 6: Lift cables and cables for flexible connections
IEC 60617-13:1993, Graphical symbols for diagrams — Part 13: Analogue elements

6)
As impacted by EN 61810-1:2015/AC:2017, EN 61810-1:2015/AC:2018, EN 61810-1:2015/A1:2020.
7)
As impacted by EN IEC 60664-1:2020/AC:2020.
8)
As impacted by EN IEC 60947-4-1:2019/AC:2020, EN IEC 60947-4-1:2019/AC:2021.
9)
As impacted by ISO 1219-1:2012/Amd 1:2016.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
apron
smooth vertical part extending downwards from the sill of the landing or carrier entrance
3.2
available carrier area
area of the carrier measured at floor level available for goods during operation of the service lift
3.3
balancing weight
mass which saves energy by balancing all or part of the mass of the carrier
3.4
buffer
resilient stop at the end of travel, and comprising a means of braking using fluids or springs (or other
similar means)
3.5
carrier
part of the service lift which carries the load
3.6
counterweight
mass which ensures traction
3.7
direct acting service lift
hydraulic service lift where the ram or cylinder is directly attached to the carrier or its sling
3.8
down direction valve
electrically controlled valve in a hydraulic circuit for controlling the descent of the carrier
3.9
electrical anti-creep system
combination of precautions for hydraulic service lifts against the danger of creeping
3.10
electric safety chain
total of the electric safety devices connected in such a way as to stop the service lift when one of them is
activated
3.11
electric service lift
service lift in which the lifting power is transmitted by means of ropes or chains to the service lift carrier
from an electrically driven machine
3.12
full load pressure
static pressure exerted on the piping, jack, valve block, etc., with the carrier with the rated load being at
rest at the highest landing level
3.13
guide rails
rigid components which provide guiding for the carrier, the counterweight or balancing weight
3.14
headroom
part of the well between the highest landing served by the carrier and the ceiling of the well
3.15
hydraulic service lift
service lift in which the lifting power is derived from an electrically driven pump transmitting hydraulic
fluid to a jack, acting directly or indirectly on the carrier (multiple motors, pumps and/or jacks may be
used)
3.16
indirect acting service lift
hydraulic service lift where the ram or cylinder is connected to the carrier or the carrier sling by
suspension means (ropes, chains)
3.17
jack
combination of a cylinder and a ram forming a hydraulic actuating unit
3.18
levelling
operation which achieves the accuracy of stopping at landings
3.19
levelling accuracy
vertical distance between carrier sill and landing sill during loading or unloading of the carrier
3.20
lift machine
unit which drives and stops the service lift, including any motor, gear, brake, sheave/sprockets and drum
(traction or positive drive service lift), or comprising the pump, the pump motor and control valves
(hydraulic drive service lift)
3.21
limited access area
area in which only users may have access
3.22
machine room
fully enclosed machinery space with ceiling, walls, floor and access door(s)/trapdoor(s) in which
machinery as a whole or in parts is placed
3.23
machinery
equipment such as: control cabinet(s) and drive system, lift machine, main switch(es) and means for
emergency operations
3.24
machinery space
volume(s) inside or outside of the well where the machinery as a whole or in parts is placed, including
the working areas associated with the machinery
Note 1 to entry: A machinery cabinet with its associated working area(s) is considered as a machinery space.
3.25
maintenance
all the necessary operations to ensure the safe and intended functioning of the installation and its
components after the completion of the installation and throughout its life cycle
Note 1 to entry: Maintenance may include:
a) lubrication, cleaning, etc.;
b) checks;
c) the operations of setting and adjustment;
d) repair or changing of components which may occur due to wear or tear and do not affect the characteristics of
the installation.
3.26
non-return valve
valve which allows flow in one direction only
3.27
one-way restrictor
valve which allows free flow in one direction and restricted flow in the other direction
3.28
overspeed governor
device which, when the service lift attains a predetermined speed, causes the service lift to stop, and if
necessary, causes the safety gear to be applied
3.29
performance level
PL
discrete level used to specify the ability of safety-related parts of control systems to perform a safety
function under foreseeable conditions
3.30
pit
part of the well situated below the lowest landing served by the carrier
3.31
positive drive service lift
service lift which is directly driven (not reliant on friction) by drum and ropes or by sprockets and chains
3.32
pressure relief valve
valve which limits the pressure to a pre-determined value by exhausting fluid
3.33
rated load
load which is intended to be carried in normal operation, which may include handling devices
3.34
rated speed
speed v, in metres per second, of the carrier for which the equipment has been built
Note 1 to entry: For hydraulic drive service lifts:
— vm is the rated speed upwards in metres per second:
— v is the rated speed downwards in metres per second;
d
— v is the higher value of both rated speeds v and v in metres per second.
s m d
...