Tube Bundle Connectivity - Emtelle Scandinavia A/S

Air Blown Fibre FttX Customers Fibre Products Tube Bundle Sub-Duct Accessories Installation Equipment Tools Training Emtelle Offi ces Terms & Conditions
40
All handling of cable ducts and loose protected microducts must be
in accordance with Danish Standards DS 430 “code of practice for
trenching of underground fl exible pipelines of plastic”.
The following guidelines highlight a range of important aspects
within these areas:
1. Transport 2. Reception 3. Storage 4. Laying 5. Disposal
1. Transport
Transport, loading and unloading are all very important factors in
ensuring the quality of the ducts.
In the contexts of transport and storage, it is essential to take into
account the relative softness and fl exibility of the duct material to
prevent the ducts from becoming deformed and/or damaged.
1.1 Ducts in set lengths
We recommend handling the ducts for as long as possible in the
packed bundles in which they are supplied.
Ducts in set lengths should be loaded and unloaded with a forklift
truck, with a crane, or manually by two people.
The ducts must never be tipped off or thrown from the vehicle. In
the case of manual handling, make sure that the ducts are never
dragged along asphalt or other rough surfaces.
For transport on lorries, the following conditions must be observed:
When they are not bundled, the ducts must not overhang the rear
edge of the lorry bed by more than 1 metre.
For bundled ducts in wooden frames, the rearmost frame must lie
on the lorry bed.
1.2 Ducts in rolls on drums
A forklift truck must always be used to move, load and unload ducts
on drums. The truck operator must make sure to lift and carry the
drums by their wooden frames. The drums must not be dropped from
heights and must not be rolled over sharp objects.
When loaded onto a lorry bed, each drum must always be securely
chocked in place, and the drums must be positioned fl ange against
fl ange. Each and every drum must be secured using transport straps.
Ducts in coils are transported on pallets. The pallets may be stacked
in two layers.
2. Delivery
On receipt of ducts, all material should be checked as the responsibility
is normally transferred to the receiver upon delivery.
3. Storage
The ducts must be stored on a level surface without sharp edges and/
or stones. During storage and transport, the ducts must be positioned
fl at and appropriately supported such that they are not subjected to
unnecessary deformation. The surface may, for example, comprise of
wooden battens spaced no more than 2 metres apart.
The ducts must be stored in such a way that they are guarded against
deformation and are not subjected to damaging infl uences.
I N N O V A T I O N A N D F L E X I B I L I T Y
TUBE BUNDLE
Handling guidelines for Loose Protected Microducts
The ducts should not be stored in locations where they are subjected
to direct sunlight for protracted periods, as this may cause the
material to deteriorate. Nor should the ducts be allowed to come
into contact with chemicals which may cause them to deteriorate.
The maximum permitted storage period for ducts is one year.
Coils of duct must be stored lying down.
4. Laying
Cable ducts, pressure ducts and loose protected microducts must
all be laid in accordance with Danish Standards DS 430 “Code of
practice for trenching of underground fl exible pipelines of plastic”
and DS 475 ”Code of practice for the laying of underground fl exible
pipelines of plastic”.
Theoretical length of expansion or contraction of
micro-ducts, in metres (without friction)
Duct
length
in m
Degrees (Celsius)
L 5 10 15 20 25 30 35 40
100 0.1 0.2 0.3 0.4 0.5 0.5 0.6 0.7
200 0.2 0.4 0.5 0.7 0.9 1.1 1.3 1.4
300 0.3 0.5 0.8 1.1 1.4 1.6 1.9 2.2
400 0.4 0.7 1.1 1.4 1.8 2.2 2.5 2.9
500 0.5 0.9 1.4 1.8 2.3 2.7 3.2 3.6
600 0.5 1.1 1.6 2.2 2.7 3.2 3.8 4.3
700 0.6 1.3 1.9 2.5 3.2 3.8 4.4 5.0
800 0.7 1.4 2.2 2.9 3.6 4.3 5.0 5.8
900 0.8 1.6 2.4 3.2 4.1 4.9 5.7 6.5
1000 0.9 1.8 2.7 3.6 4.5 5.4 6.3 7.2
1100 1.0 2.0 3.0 4.0 5.0 5.9 6.9 7.9
1200 1.1 2.2 3.2 4.3 5.4 6.5 7.6 8.6
1300 1.2 2.3 3.5 4.7 5.9 7.0 8.2 9.4
1400 1.3 2.5 3.8 5.0 6.3 7.6 8.8 10.1
1500 1.4 2.7 4.1 5.4 6.8 8.1 9.5 10.8
1600 1.4 2.9 4.3 5.8 7.2 8.6 10.1 11.5
1700 1.5 3.1 4.6 6.1 7.7 9.2 10.7 12.2
1800 1.6 3.2 4.9 6.5 8.1 9.7 11.3 13.0
1900 1.7 3.4 5.1 6.8 8.6 10.3 12.0 13.7
2000 1.8 3.6 5.4 7.2 9.0 10.8 12.6 14.4
5. Disposal
The disposal of remainders of micro-ducts of any length (which may
be polluted with soil, mud and/or other impurities) and of complete
products is the responsibility of the duct manufacturer – in this case
Emtelle Scandinavia. Alternatively, responsibility can be exercised via
a company with the facilities for such disposal. Customers may return
small volumes to Emtelle Scandinavia in Sdr. Felding, Denmark. For
larger volumes (3000 metres or more), it is best to collect all used and/
or unused micro-ducts in a single location close to a three-phase 380 V
power supply.
NB! Temperature-related expansion and contraction of micro-ducts
may occur. Emtelle Scandinavia therefore recommends laying 1
metre of extra micro-duct in each hand hole.
At Emtelle we strive to improve our products every day and therefore strongly suggest that all new orders and specifications be confirmed by your Emtelle representative. The current specifications may be different
from those listed in our latest catalogues, which are limited by publication date. For the latest specifications please visit our website at www.emtelle.com or contact your Emtelle representative.