EN ISO 4375:2004

SLOVENSKI STANDARD
01-september-2004
+LGURPHWULþQHGRORþEHäLþQLãNLVLVWHPL]DPHUMHQMHWRND,62
Hydrometric determinations - Cableway systems for stream gauging (ISO 4375:2000)
Hydrometrische Bestimmungen - Seilbahnsysteme für Messungen in Fließgewässern
(ISO 4375:2000)
Mesure de débit des liquides dans les canaux découverts - Systemes de suspension par
câbles aériens pour le jaugeage en riviere
Ta slovenski standard je istoveten z: EN ISO 4375:2004
ICS:
17.120.20 Pretok v odprtih kanalih Flow in open channels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 4375
Second edition
2000-10-15
Corrected version
2003-03-01
Hydrometric determinations — Cableway
systems for stream gauging
Déterminations hydrométriques — Systèmes de suspension par câbles
aériens pour le jaugeage en rivière

Reference number
ISO 4375:2000(E)
©
ISO 2000
ISO 4375:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 4375:2000(E)
Contents Page
Foreword . iv
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 1
4 General description of a cableway system. 2
4.1 Elements of a cableway system . 2
4.2 Cableway supports. 4
4.3 Main track or main cable . 4
4.4 Anchorage. 4
4.5 Tow cable for a bankside system . 4
4.6 Suspension cable. 4
4.7 Instrument carriage for a bankside system. 4
4.8 Personnel carriage. 4
4.9 Winch arrangements for a bankside system. 4
4.10 Winch arrangements for a personnel carriage . 4
4.11 Lightning protection. 5
5 Functional requirements of cableway components . 5
5.1 Safety factors. 5
5.2 Cableway supports. 6
5.3 Selection of main cable or track . 6
5.4 Anchorage. 6
5.5 Backstays. 6
5.6 Tow cable. 7
5.7 Carriages. 7
5.8 Winches. 8
6 Maintenance, examination and testing . 9
6.1 General examination. 9
6.2 Routine inspection. 9
6.3 Static testing. 10
6.4 Lubrication. 10
6.5 Checking the sag. 10
Annex A (informative) Cableway characteristics. 11
Bibliography. 26

ISO 4375:2000(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 4375 was prepared by Technical Committee ISO/TC 113, Hydrometric determinations,
Subcommittee SC 5, Instruments, equipment and data management.
This second edition cancels and replaces the first edition (ISO 4375:1979), which has been technically revised.
This corrected version of ISO 4375:2000 incorporates the following corrections.
In Annex A, clause A.1, the equations used for calculating F and F have been corrected.
ht at
iv © ISO 2000 – All rights reserved

INTERNATIONAL STANDARD ISO 4375:2000(E)

Hydrometric determinations — Cableway systems for stream
gauging
1 Scope
This International Standard defines the requirements for equipment, anchorage, supports and accessories for
cableway systems for use in stream gauging. Systems which are operated either entirely from the river bank or
from a suspended personnel carriage (also called a “cable car”) are discussed. This International Standard does
not concern methods for making a discharge measurement which are described in ISO 748.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 31-3:1992, Quantities and units — Part 3: Mechanics.
ISO 748:1997, Measurement of liquid flow in open channels — Velocity-area methods.
ISO 772:1996, Hydrometric determinations — Vocabulary and symbols.
1)
ISO 772:1996 Amd 1 , Hydrometric determinations — Vocabulary and symbols.
3 Terms and definitions
For the purposes of this International Standard, the terms and definitions given in ISO 772, its amendment 1 and
ISO 31-3 as well as the following apply.
3.1
cable
wire rope of simple or complex structure or wire cord, fixed or moving in a cableway system

1) To be published.
ISO 4375:2000(E)
4 General description of a cableway system
4.1 Elements of a cableway system
A cableway system can be designed to be operated from the river bank (see Figures 1 and 2) or be designed to be
operated from a suspended personnel carriage (Figure 3). The general arrangement of the following elements are
common to both systems:
a) towers or cableway supports;
b) track or main cable;
c) anchorage;
d) backstays;
e) suspension cable.
The main differences are:
 the carriage of a bankside system requires a tow cable;
 a bankside system requires a more complicated winch arrangement;
 the personnel carriage has to provide a safe platform for the operator;
 more stringent design requirements may apply to a system which employs a personnel carriage.

Key
1 Backstay 6 Sinker or sounding weight
2 Traversing cable return pulley 7 Distance measurement
3 Track or main cable 8 Depth measurement
4 Traveller and/or instrument carriage 9 Cable drum
5 Current meter
Figure 1 — Cableway system — Bankside operation, with loop-traversing cable
and spooled sounding cable
2 © ISO 2000 – All rights reserved

ISO 4375:2000(E)
Key
1 Track or main cable
2 Suspension cable
3 Tow cable
Figure 2 — Cableway system — Bankside operation, with spooled tow cable and spooled sounding cable

Key
1 Tower 5 Current meter
2 Suspension cable 6 Sounding weight
3 Personnel carriage 7 To anchorage
4 Track or main cable 8 Stayline
Figure 3 — Cableway system — Suspended personnel carriage
ISO 4375:2000(E)
4.2 Cableway supports
The cableway supports, one on each bank, support the main cable span across the stream. They may also provide
mountings for the winch and the pulleys (sheaves) carrying the tow and suspension cables.
4.3 Main track or main cable
The track or main cable is designed to carry the whole suspended load. The track may be attached directly to
stayed cableway supports or be supported on saddles on the cableway supports and led directly to an anchorage.
4.4 Anchorage
Anchorages are required to carry the loads induced in the cableway and tower system. Depending upon the design
of the system, they may be anchorage points for track and backstays or guy-lines, tower foundations subject to
compression or tower foundations subject to compression and moment.
4.5 Tow cable for a bankside system
The tow cable is required to move and position the instrument carriage. Generally the tow cable is arranged as an
endles
...