Power Cable Accessories

Wall feed-through EPAF
Application
The wall feed-through EPAF provides a
reliable seal against water and gas for
cables brought into buildings
underground. When properly installed,
test reports prove a water and gas
tightness at an external pressure of 0,1
MPa between the wall and the feedthrough
as well as between the feedthrough
and the cables. The design
allows removal of cables and installation
of new cables in the same feed-through.
For exceptionally thick walls, the feedthrough
can be easily prolonged with
another one.
8 6
H
Construction
The feed-through EPAF consists of a
galvanised steel spiral over which a
longer heat-shrinkable tubing with an
adhesive coating inside is installed. An
external coating of special primer
improves the adhesion to various types of
concrete and quick-drying cements. The
ends of the tubing are protected with caps
to allow cable installations at a later
stage. When installing the cable, the end
caps are removed and the adhesive
coated tubing shrinks onto the cable.
Cables are removed by cutting off the
tubing at the end of the steel spiral. Upon
pulling the steel spiral with a pair of pliers,
it will break at a predetermined breaking
point. The resulting new open end of the
heat-shrinkable tubing can be shrunk onto
the new cable.
1 Sealing cap
2 Outside sealing coating
3 Inside sealing coating
4 Heat-shrinkable tubing
5 Predetermined breaking point
6 Galvanised steel spiral
Da: Inside diameter as delivered
Db: Diameter after free recovery
L: Length
W: Wall thickness
Recommended application ranges (mm) Ordering Dimensions (mm)
Cable diameter Wallthickness Hole diameter description D L R
min. max. W max.* H min. a (min.) b (max.) ± 20 mm ± 20 mm
8 14 320 40 EPAF 2004 16 8 700 90
12 25 320 55 EPAF 2008 28 10 700 90
18 36 420 70 EPAF 2010 41 16 800 90
29 56 320 90 EPAF 2020 59 26 700 90
55 98 370 140 EPAF 2030 106 54 760 115
* For bigger walls two wall feed-through can easily be connected.
W
L
R
D