BD01 System – 40 ... 160 A - GRUP DAP

NSV0_00190
NSV0_00189
BD2 System — 160 ... 1250 A
© Siemens AG 2007
Fire barriers
■ Overview
General requirements
The German state building authorities demand that buildings are
designed so that "spreading of fire and smoke is prevented, and
that effective fire fighting and rescue of persons and domestic
animals is facilitated". Fire or flue gas may not spread from one
storey or fire area to another.
All BD2A/BD2C busbar trunking systems can be equipped with
a fire barrier and generally comply with the standards for buildings
including high-rise buildings. The busbar trunking system is
supplied ex-works with fire barriers. Retrofitting is not possible.
A general approval from the German Institute for Building
Engineering (Deutsches Institut für Bautechnik in Berlin DIBt) in
Berlin is available:
• BD2-S120: No. Z-19.15-1046,
• BD2-S90: No. Z-19.15-1048).
The fire resistance class with the BD2 system corresponds with
version S90 or S120 according to DIN 4102 Part 9. The
demands for verification of fire resistance duration at 120 min as
specified to ISO 834 according to IEC/EN 60439-2 are fulfilled.
The requirements for a busbar trunking system as specified to
DIN 4102 are shown in the illustration.
4
3
1
• The center of the fire barrier in the trunking unit must be positioned
in the center of the fire wall or ceiling.
Exception: With junction units, this may not be possible due to
insufficient distance from the wall or ceiling, i.e. the center of
the fire barrier may not coincide with the center of the fire wall
or ceiling. In such cases, PROMATECT-H(L) panels are added
to achieve the actually required wall or ceiling thickness.
• The following information must be provided: For BX*, BY* or
BZ* trunking units, position of the center of the fire barrier in
the trunking unit (or the center of the fire wall or ceiling for junction
units with insufficient distance from the wall or ceiling); the
desired fire resistance rating S90 or S120; and the thickness
M* of the wall or ceiling.
• There are no tap-off points in the area covered by the fire barrier.
• The trunking units must be installed by an approved fire
protection installation specialist.
Notes
For BX* and BY*, replace the asterisk in the type reference by the
required dimension in meters from the center of the clamp terminal
(end without clamp terminal) to the center of the fire wall or
ceiling; for -M* specify the wall or ceiling thickness.
For BZ*, replace the asterisk in the type reference by the required
dimension in meters from the outside edge of limb X to
the center of the fire wall or ceiling; for -M* specify the wall or
ceiling thickness.
1
2
BX*, BY*, BZ*
M*
1 Center line of fire barrier
Positioning in the fire wall
5
NSV0_01070
(1) Permissible temperature increase on components max. 180 °C
(2) Scene of fire: Application of fire according to the standard
temperature curve DIN 4102, Sheet 2
(3) Permitted temperature increase of escaping air: max. 140 °C
(4) No flammable gases are permitted to escape. No rescue work may
be hindered by emerging smoke.
Engineering
To ensure fire protection to S90 or S120, the following points
must be observed when engineering and installing trunking and
junction units with fire barriers:
M*
BX*, BY*, BZ*
1
1 Center line of fire barrier
Positioning in the fire ceiling
5/94 Siemens LV 70 · 2006