hanit® Cable Conduit Covers

hanit
®
– the material from recycled plastics
The economical alternative for industrial applications!
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Cable Conduit Covers (CC Covers)
With our patented Cable Conduit Covers we offer you products that are suited for all established
supply ducts. They are walkable and – if desired – accessible by vehicles. In technical, economical,
and ecological respects our CC Covers are the optimum solution for new construction projects as
well as for the replacement of rotted wood or brittle concrete covers.
Our hanit® Cable Conduit Cover System
– generates multiple benefit!
Sectional view of a reinforced CC Cover
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As a customer you do not only profit
from the product advantages and material properties of our hanit® Cable Conduit
Covers but also from
site measuring
static calculations according to the variety of formats and
the reconstruction of existing
installation of the covers by cable ducts
our qualified and electro-
technically trained personnel
the extent of our service
the respective application
special designs
types of substructures
the individual product development options
design and realization of all hanit® CC Covers
– the economically and ecologically correct product
of choice!
Often cable ducts are covered by con-
Primarily, hanit® products are distinguis-
crete or impregnated wooden boards.
hed by the following characteristics:
Further material properties
Electrically non-conductive
Robustness
Fire retardant in accordance with Resistance to environmental
flammability rating B2 (DIN 4102)
However, these cover materials have
decisive disadvantages when employed
outdoors. Concrete covers absorb water
(risk of frost damage) and will become
influences, alkalis, acids, and road
Pressure-resistant
brittle after a few years, even if rein-
salt
Heat insulating
forced. Used outside, wooden covers
Resistance to micro-organisms
Degree of thermal conductivity will soon begin to rot on account of the
Stability and crack resistance
approx. 0.23 [W/mK]
weather conditions causing trip hazards
and cave-ins.
continuous operation temperature Impregnated wood also entails higher
range between -20 °C and +50 °C
disposal costs (hazardous waste).
Waterproof (hydrophobic)
hanit® Cable Conduit Covers offer the
UV-resistant
optimum solution especially for outdoor
Brown, solid-coloured
application.
Lightfast,
The hanit® material consists of seconda-
category 7 to 8 according to
ry plastics of the polyolefin product line
DIN 53952
(LDPE, HDPE, PP). Through utilization
of these high-quality secondary rawmaterials (material purity level > 95 %)
expensive new material is replaced and
environmental resources are conserved.
In view of the price-performance ratio,
the hanit® material increasingly replaces
wood, steel, metal, concrete, and primary plastics.
Temperature-resistant,
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Advantages of our hanit® CC Covers
– at a glance!
Material durability/
Reduced workload
Maintenance-free, no upkeep costs
dimensional stability
Faster installation
Low transport and installation costs
Weather-proof and frost-resistant
Rot-resistant, splinter-proof, low in comparison to concrete
Simple handling
risk of injury
(drilling, sawing, screwing, nailing)
guaranteed
impregnation
conduit or duct due to different to moulded-in rectangular corrosion
edge designs
protection, since
protected steel bars
Simple on-site adjustments
composed of recycled plastics
Easy realization of corner, curve, 100 % recyclable
Contaminant-free in compliance Sustainable all-year application Highly dimensionally stable due
Walkable and – if desired –
accessible by vehicles
Easy to process mechanically Covers adaptable to every existing and special designs
Ecological
Manufactured without Sustained environment
with soil protection regulations
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Safety
Chequered anti-slip surface (anti-
slip class R10 – V4, DIN 51130)
Low weight
Economical
The specific weight of the plastic
Long useful life (> 40 years)
covers is only one third of the weight
Made from high-quality upgraded of concrete elements, thus enabling
secondary plastics (polyolefins)
installation without heavy machinery or
as ONE-MAN-ACTION:
Primary application of our hanit® covers
As covers of
in
transformer stations
tion of
canals
industrial plants and railway
shafts
systems
building and inspection pits
supply, distribution, and installation As planking and steps in the construcfootbridges, walkways, and bridges
The structure
– a watertight steel-plastics bond!
Walkable hanit® CC Covers
Our patented CC Covers (Patent No. DE
such a way that the free ends extend
following the demoulding of the covers.
19540762B4) are serially manufactured
into open circular expansion chambers.
Thus, after the cooling and shrinking
in the cross section measurements of
The expansion chambers provide for
process, a radial seal is created, which is
400 x 45 mm and a maximum width of
compensation of the differing longitudinal
similar to a compression fitting.
2,100 mm.
expansion properties of steel and pla-
The cover width is variable depending on
stics. The steel profiles are completely
the respective project requirements.
enclosed by the plastics but do not form
The weight of reinforced standard covers
a substance-to-substance bond.
is approximately 48 kg/m².
Consequently, tension cracks are prevented. In order to efficiently avoid the
To increase bending strength, two 50
intrusion of rainwater into the expansion
x 20 x 2 mm galvanized steel profiles
chambers, a locking disc is pressed into
(S235) are embedded in the plastics in
each chamber opening immediately
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Locking Disc
Cable Conduit Cover
Cross Section
Expansion Chamber
Cable Conduit Cover
Steel Reinforcement 50 x 20 x 2 mm
Locking Disc
Bottom Side
Steel Reinforcement
50 x 20 x 2 mm
The structure
– a watertight steel-plastics bond!
Negotiable hanit® CC Covers
Compared to our walkable covers the
This cover is 400 mm in length.
covers suited for vehicles are triple rein-
It can be manufactured in various widths
forced (S 335; 50 x 30 x 4 mm) and have
of up to 1,600 mm.
a height or thickness of 80 mm.
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Cross Section
hanit® CC Covers with overlap
On request, CC Covers can be manufactured with an overlap on one side
to prevent leaves, grass, and dirt from
falling into the cable conduits.
Bottom View
Diversity of the edge rests (bearing areas)
– enables the adaptation to every existing duct!
Resting on the duct edge
parallel overlaps
with slat against shifting
Resting between the outer duct edges
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parallel overlaps*
standard*
with height compensation*
*with grip holes on request
Surface ribbing
– to enhance safety!
The top side of the Cable Conduit Cover
has bulb plate ribbing to increase its antislip properties. According to testing for
slip resistance executed by the German
Institute for Occupational Safety and
Health of the German Social Accident
Insurance (IFA) our CC Covers were
classified R10 – V4 (DIN 51130).
Load carrying capacity of our CC Covers
– depends on design and project requirements!
Vehicle-accessibility of our hanit® CC
Covers
Pressure tests prove that our covers are
accessible by vehicles depending on the
clear width, i.e. the inside dimensions of
Clear width up to
Negotiable with a wheel load of
600 mm
7,500 kg
800 mm
5,000 kg
1,000 mm
3,000 kg
the cable conduit.
Brief description of the pressure tests
In a series of experiments with 3 specimens each, HAHN KUNSTSTOFFE
GMBH tested the performance of covers
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with the following dimensions and clear
widths (CW) under a load of Fmax = 75 kN:
W x L x H: 800 x 400 x 80 mm,
clear width 600 mm
W x L x H: 1,000 x 400 x 80 mm,
clear width 800 mm
W x L x H: 1,200 x 400 x 80 mm,
Top view
clear width 1,000 mm
Force F
The covers/specimens were loaded with
an indenter manufactured in accordance
with DIN 124. The indenter has a 250
mm diameter, which corresponds to a
pressure area of about 49,000 mm².
The pressure tests were carried out at a
temperature of about 20 °C and a load
duration of t = 10 s/item. The specimens
were tested under the most unfavourable
load condition.
Clear Width
Front view
Load carrying capacity of our CC Covers
– depends on design and project requirements!
Evaluation of the load tests
For the sake of clarity, the mean value of each of the three test results was established for each test run.
Pressure Test for negotiable Cable Conduit Covers
Load
Bending f [mm] – mean value of 3 specimens
F [kN]
F [kg]
Clear width 600 mm
Clear width 800 mm
Clear width 1000 mm
5
509.85
0.17
0.53
1.07
10
1,019.72
0.80
1.57
1.97
15
1,529.57
1.50
2.43
3.10
20
2,039.43
1.93
3.37
3.93
25
2,549.29
2.40
4.23
5.00
30
3,059.15
2.97
5.23
6.17
35
3,569.01
3.30
6.23
7.47
40
4,078.86
3.90
7.33
9.07
45
4,588.72
4.20
8.27
10.47
50
5,098.58
4.70
9.03
12.40
55
5,608.44
5.10
10.27
17.00
60
6,118.30
5.67
11.77
19.17
65
6,628.15
6.30
14.67
25.33
70
7,138.01
6.80
18.67
31.33
75
7,647.87
7.47
Conclusion
CC Covers with a 600 mm clear width
can carry a load of Fmax = 75 kN.
Covers with an 800 mm clear width can
carry a maximum load of 50 kN.
A higher load must be advised against,
since the diagram curve is no longer linear, which is an indication for the possible
failure of the specimen.
The load carrying capacity of CC Covers
with a clear width of 1,000 mm amounts
to a maximum of 30 kN.
Failure
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Load carrying capacity of our CC Covers
– depends on design and project requirements!
Walkable hanit® covers
Pressure tests with our walkable CC
Due to the marginal deflection, the CC
Covers by the Materials Testing and
Covers fulfill our clients’ requirements
Research Institute, Neuwied (Germany)
and specifications pertaining to occupa-
show the following deflection values at
tional safety.
point loads of 100 kg and 150 kg.
Specimen description
Deflection
at 100 kg in mm
Deflection
at 150 kg in mm
0.78
1.19
2.33
3.61
hanit® CC Covers with anti-slip surface
with 2 galvanised steel reinforcements (50 x 20 x 2 mm)
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- 800 mm x 400 mm x 45 mm – clear width: 600 mm
hanit® CC covers with anti-slip surface
with 2 galvanised steel reinforcements (50 x 20 x 2 mm)
- 1,200 mm x 400 mm x 45 mm – clear width: 1,000 mm
Clear width
Please refer to the following table for the
Maximum load
F [kN]
F [kg]
600 mm
17.5
1,780
1,000 mm
5
510
If desired, we will gladly send you reports
On customer request, higher load values
of the various pressure test results.
can be realised for walkable covers
You will also find the reports in the down-
and covers accessible for vehicles by
load centre or our homepage
modifying the substructure as well as
www.hahnkunststoffe.de
the covers (additional and/or stronger
reinforcements).
maximum load carrying capacity of our
CC Covers in kN and kg. After discontinuation of loading in the elastic area the
cover immediately resumes its original
shape.
Easy installation
– even in complex trapezoid, curve, and corner design!
During installation, please note the following information and reference values.
Significance of thermal expansion
The thermal expansion of the covers
needs to be considered during installation. Depending on the temperature
and season, expansion can amount to
approximately 1.5 to 2 %. The gap width
should be 5 mm.
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Mounting of the anti-shift gibs
Two 39 x 50 x 25 mm (L x W x H) antishift gibs are fastened to the CC Cover
by means of 2 stainless steel screws.
To guarantee optimum guidance and
safety of the covers on the cable conduit,
a distance of 5.0 to 7.5 mm needs to be
maintained between the conduit inside
wall and the respective anti-shift gib.
Distance of 5.0 to 7.5 mm between
wall and gib
Easy installation
– even in complex trapezoid, curve, and corner design!
Working the fitting plates
For trapezoid, curve and corner designs
we recommend the use of so-called fitting plates. These feature two specialties
compared to other CC Covers. On their
longitudinal sides they have a rebate
and no inlaid reinforcements to facilitate
mechanical treatment.
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The desired shape of the fitting plate
saw blade the plates can be cut without
is marked. By means of a standard cir-
any difficulties.
cular hand saw with an alternate tooth
From a clear width of 600 mm the corro-
Subsequently, the cut edges of the angle
as well as for minimising bending, we re-
sion protected 35 x 35 x 4 mm angle pro-
profiles are cold-galvanized. The last step
commend to support the fitting plates with
files must be fitted into position and fixed
is to mount the anti-shift gibs to the fitting
a substructure in cases of greater spans.
with screws to the longitudinal rebate.
plate. For reasons of occupational safety
Easy installation
– even in complex trapezoid, curve, and corner design!
Substructure
On request, we design removable
substructures with hot galvanised steel
profiles in the dimensions 50 x 50 x 4 mm
x required length for a barrier-free drawing of cables. Depending on the project
or cable duct, the substructure may be
welded and anchored to the inside duct
walls by means of angle brackets. The
steel profiles rest on adjustable and/or
ninety-degree brackets.
Example of a substructure
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Left:
90°-bracket
Right:
Adjustable angle bracket
Marking the covers
After removal of the covers, marking facilitates a quick reinstallation, especially
when dealing with varying trapezoid
elements. Marked CC Covers serve as
points of reference. Depending on customer request, the covers can be equipped
with paint marks, different colour plastic
discs with or without fixation.
Marking by coloured discs
Assembly instructions
We will gladly send you detailed assembly instructions.
Paint mark
Special designs
– a selection!
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Corner and curve designs
Duct forks and crossings
Trapezoids
Conduits and ducts with height compensation, incline/decline
Platforms, stairs
Round covers
Pedestals and walkways
alongside buildings
Sheathing
We realise project-related special designs
Passages
for the most varying requirements:
Covers with cable entries
Covers with grip holes
Our hanit® standard Cable Protection Boards
– offer protection against mechanical damage!
Our boards are excellently suited for the
protection of underground cables and
pipes.
On account of their application in underground, pipeline, and road construction,
mechanical damage to cables, conduits,
and pipes during backfill or subsequent
earthwork is prevented or minimised.
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The grey Cable Protection Boards in the
dimensions L x W x H: 1,050 x 200 x 50
mm are easy to transport due to their
low weight of about 7.2 kg and can be
worked on with standard tools (drilling,
sawing, screwing, nailing).
Product drawing
Installation of Cable Protection Board
hanit
®
– the material from recycled plastics
See for yourself!
jkplus/09.2011
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Hahn Kunststoffe GMBH
Abteilung Technik
Gebäude 1027
D-55483 Hahn-Flughafen
Phone +49 (0) 6543 - 98 86 - 0
Fax
+49 (0) 6543 - 98 86 - 40
E-Mail [email protected]
Internetwww.hahnkunststoffe.de
Subject to technical changes! hanit is a registered trademark.
We develop, design, and manufacture
for you! Contact us: