ELEKTRA SelfTec 16 Manuale utente
SelfTec 16
®
ELEKTRA
• Self-regulating
heating cables
RU
Instrukcja montażu PL
Installation manual UK
Èíñòðóêöèÿ ïî ìîíòàæó
www.elektra.eu
Application
ELEKTRA SelfTec 16 heating cables are intended
for the antifrost protection of:
• pipeline systems,
• sprinkler systems,
• drain pipes for condensate outlets in domestic
air conditioning and ventilation systems,
• actuators,
as well as for the protection against snow and
ice of:
• gutters,
• downpipes,
• roof drains.
®
3
UK
Characteristics
self-regulating heating cables
increase their heating power when the tempe-
rature of the heated system drops and
adequately decrease it when the temperature
increases.
Change of power only occurs in these places
where ambient temperature changes. Self-
regulating heating cables with no danger of
spot overheating.
ELEKTRA SelfTec 16
®
tin-coated multi-wire copper conductor
self-regulating conductive core
modified polyolefin insulation
PET covered aluminum foil shield
tinned copper braiding
UV resistant halogene-free outer sheath
1
3
4
5
2
6
654321
SelfTec 16
®
ELEKTRA
4
Construction of the
ELEKTRA SelfTec 16
®
Technical parameters:
• power output (+10°C) 16 W/m
• power supply voltage 230V 50/60 Hz
• external dimensions of the cable ~6x9 mm
• min. installation temperature -25°C
• max. working temperature: +65°C
• max. exposure temperature +65°C
• min. cable bending radius 3.5D
• IP rating IPX7
• max. protection type C 16A
~
5
ELEKTRA SelfTec 16 heating cables are available
on spools, terminated with a heat shrink cap to
protect the cable against moisture.
After a cable segment has been cut off, the cable
remaining on the spool also needs to be secured
with a heat-shrink cap. The cables need to be
terminated and connected to the power supply
conductor. For this purpose, the EC-PRO and
ECM25-PRO joint sets have to be applied
(installation manuals included in the sets).
Due to their properties, ELEKTRA SelfTec 16 can
touch or cross and they are not prone to local
overheating. A significant advantage is the
possibility to cut the cables into segments of
required length. However, it is recommended not
to exceed the max. permissible heating circuit
length, as shown in Table 1.
®
®
min. switch-on
temperature
max. circuit length [m]
10A 16A
SelfTec 16
®
type C circuit breaker
-20°C
-15°C
0°C
+10°C
+10°C
in water
0°C
in ice
water
Table 1
55 75
60 80
70 90
80 100
55 60
40 55
6
SelfTec 16
®
ELEKTRA
SelfTec 16 heating cable
®
Selection
Pipeline systems, sprinkler systems,
etc.
Length of the heating cables depends from:
• pipe’s diameter,
• min. ambient temperature
on the installation site.
spiralling ratio
7
½
Pipe’s diameter [inches]
¾111½ 2
1111 11
000000
1111 11
0000 00
1 1 1 1.1 1.2 1.5
000292317
1 1 1 1.3 1.4 1.7
000161514
1 1.1 1.3 1.6 1.8 2.2
0 18.5 12.5 10.5 10 9.5
-10
-15
-20
-25
-30
Ambient temperature [°C]
Table 2 Length of the heating cable per 1 m
of the heated pipe
Value 1 in the length indicator signifies parallel
positioning of the cable along the pipe. Values
higher than 1 signify the length of the heating
cable per 1 m of heated pipe. In this case, the
cable should be spiralled along the pipe.
length
[m]
spiralling
ratio [cm]
length
[m]
spiralling
ratio [cm]
length
[m]
spiralling
ratio [cm]
length
[m]
spiralling
ratio [cm]
length
[m]
spiralling
ratio [cm]
8
SelfTec 16
®
ELEKTRA
Heated pipeline systems, sprinkler systems,
etc., must be insulated.
The thickness of thermal insulation layer
must be minimum 10 mm for pipes up
to 1 in. diameter, and at least 15 mm
for pipes up to 2 in. diameter.
Note:
Gutters, downpipes
Selection of the adequate length of the heating
cables depends from:
installation site.
• min. ambient temperature in the area
of the
Number of segments
of the heating cable
Below -5°C
gutters
downpipes
Above -5°C
Min. ambient
temperature
[°C]
1
1
2
1 or 2*
* if the building is located in the regions
of intense snowfall
The values are given for gutters of diameters
Ø100-125 mm.
9
Examples of installation in gutters
and downpipes
Single-led installation
in a gutter or downpipe
Double-led installation
in a gutter with single-led
installation in a downpipe
Double-led installation
in a gutter and downpipe
10
SelfTec 16
®
ELEKTRA
Materials
required for the installation of heating cables
• ELEKTRA SelfTec 16 heating cable,
• ELEKTRA EC-PRO cold lead connection
and end seal kit or
• ELEKTRA ECM25-PRO termination and joint set
with M25 gland for installation in the power
supply junction box,
• ELEKTRA KF 0404-PRO power supply junction
box,
• self-adhesive installation tape (available as an
accessory),
• self-adhesive aluminum foil min. 0.06 mm
thick, approx. 50 mm wide (available as an
accessory),
• thermal insulation for pipes.
required for the installation of heating cables
• ELEKTRA SelfTec 16 heating cable,
• ELEKTRA EC-PRO cold lead connection
and end seal kit or
• ELEKTRA ECM25-PRO termination
and joint set with M25 gland for installation
in the power supply junction box,
• ELEKTRA KF 0404-PRO power supply
junction box,
on pipes and pipelines:
in gutters and downpipes:
®
®
Indice
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