16
6. EARTHING SLEEVE
A large number of swimming pools are
currently constructed with electrically
insulating materials. Embedded parts, wall
crossings, pipes, valves and pump housings
are made of PVC, ABS or other plastics. The
linings are often made of polyester, PVC liner,
or painted. These types of swimming pools, of
which all of the components are made of
plastic, have the characteristic of storing static
electricity.
Also, the pump turbines create fairly
significant static currents. A filtration pump
thus creates a variable voltage of
approximately 3 to 4 Volts. The same applies
for counter-current pool motors. Therefore,
there is always a voltage of 3 to 8 volts in the
swimming pool's water.
This voltage can reach 12 volts during a storm.
A poorly balanced pH destabilises the mineral
salts contained in the pool water. The mineral
salts in ionic form and with a positive charge
then react with the bottom or sides of the
pool, on the parts that are statically the most
negatively charged. Bonds are then produced
between the molecules, causing grey to black
disparate stains.
or even making the whole lining turn a greyish
colour.
The installation of an earthing sleeve prevents
these phenomena by earthing the residual
electrical currents. These stains cannot be
eliminated by rubbing, and only an acidic
medium will make them disappear.
Assembling earths: (Earths exist in 1’’1/2, or
2’’)
For maximum efficiency, screw the Earthing
sleeve on the pump output.
•
It is important to provide one Earthing
sleeve for each pump installed on the
filtration system.
Place an earthing rod in a location that retains
humidity (in a watered flowerbed, at the bottom
of a tree, etc.).
Connecting the Earth to the
Earth of the house is prohibited for safety
reasons.
•
This installation of the Earthing sleeve
constitutes the earthing of the pool water and
not the earthing of the equipment.
•
You must connect the Earthing sleeve
to the Earthing rod using an Earthing
braid with a section of at least 20
mm2.
PUMP
Towards drains
Swimming pool
backflow
Main drain
Assembling an earth
Skimmer
Brush socket
Earth cable of 20 mm
minimum towards separate
earthing rod
Filter
Содержание STERILOR Cu/Ag
Страница 2: ...2 ...