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According the Table Brackets the comparative surface area for height pole 0,23
Surface area comparative surface
2
0,5 /0,23 suitable. Select type pole and bracket.
0 2,
50
POPRAD
BRATISLAVA
TRNAVA
NITRA LUČENEC
ZVOLEN
BANSKÁ BYSTRICA
TRENČÍN
ŽILINA
RUŽOMBEROK
STROPKOV
PREŠOV
KOŠICE
.
is value derived from the load the bracket mounted the pole given conditions. State basic wind velocity compliance with :
STN 1991-1-4
- Select locality according wind velocity map Slovakia.
- Select terrain category from according instructions below. Terrain category III.0
Guide for customer select suitable bracket terms the load capacity pole.
Locality m/s mountain locality 1300m a.Terrain category 0
Sea, coastal area exposed the open sea. Surface area 0,5
2
0
- Bracket V1T-05-D
Location Bratislava 26m/s
Terrain category suburbs. Valid 700 a.
- Divide the value „surface the value „Comparative Surface Area the bracket.
Instructions:
1.s.
Terrain category IV
area which least 15% the
surface covered with buildings and
.
The table based calculations where luminaire
Comparative Surface Area has 0,10 surface area exposed
2
to the wind and its weight kg.0
II
Locality m/s
ref.l.
their average height exceeds 15m
Terrain category III
Area with regular cover vegetation
or buildings with isolated obstacles
withseparations maximum 20
obstacle heights such villages,
suburban terrain permanent forest )
Terrain category I
Lakes area with negligible vegetation
and without obstacles.
Selection brackets „comparative surface area“
Example: Pole STK 60/60/3K12.
2.
Terrain category II
Area with low vegetation such grass and
isolated (trees, buildings) with separations
of least obstade heights.0
Locality m/s (700 1300m )
III ref.)
IV ref.0 l.
Comparative surface area
These conditions are wind velocity, terrain category and luminaire.
Locality m/s
I ref.l. case the result
2
is equal more than the bracket suitable for the pole. When using luminaires values different those the table more than 10%
the Comparative Surface Area Table should only taken informative. Find out selected bracket suitable for selected pole (coloured columns the Tables Poles and Brackets). this case consultation with producer
is required.s.
3
