OBO Bettermann A Series, Монтаж и установка

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12
Mounting and installation information for junction boxes
Area Outdoors,
for cleaning work with
spray water
Outdoors,
without spray water
Indoors,
for cleaning work with
spray water
Indoors,
without spray water
0 IPX5/IPX8 IPX8 IPX5/IPX8 IPX8
1 IPX5 IPX4 IPX5 IPX4
2 IPX5 IPX4 IPX5 IPX4
Electrical resources used in areas of pools of swimming
baths and other pools must correspond at least to the
following protection ratings:
3.4. Agricultural or horticultural facilities according
to DIN VDE 0100-705
In these areas, there are different requirements for the
switch-off devices of the circuits, but also requirements
for the materials used.
In final circuits with sockets, there must be an offset cur-
rent protection device with a rated differential current =
30 mA.
In all other circuits, except those supplying distributors,
there must be an offset current unit with a rated differen-
tial current = 300 mA.
With regard to the material used for the junction/con-
nection sockets, before the installation it is necessary to
check which chemical concentrations are present in the
environment. This has a serious influence on the resist-
ance of the products used.
Examples:
Stables, chicken coops, pigsties, breeding spaces, stor-
age locations for straw, fertilisers and cereals, etc.
3.5. Damp and wet areas, rooms and outdoor areas
according to DIN VDE 0100-737
Important protection requirements:
In damp and wet areas and rooms, electrical resources
must at least be protected against water droplets (protec-
tion rating IPX1).
In areas and rooms, in which spray water is used and the
resources are normally not sprayed directly for cleaning
purposes, the resources must have at least spray water
protection (protection rating IPX4). In areas and rooms
in which spray water is used, resources that are direct-
ly subjected to the water jet must, with regard to water
protection, have a protection rating suitable to being sub-
jected to a water jet or have sufficient additional protec-
tion that does not impair perfect operation of a resource
protected in such a manner.
Examples:
Canteens, unheated and unventilated cellars, laundries,
refrigerators, greenhouses, laundrettes, etc.
Junction box in greenhouse