Catalog LV 70 2011 - Low & Medium Voltage - Siemens

BD2 System — 160 ... 1250 A
© Siemens AG 2011
Fire barrier
Installing trunking units with fire barrier
Recommended minimum dimensions of ceiling or wall cut-out
c
28–82 mm
System
current strength up to
a 1)
mm
b
mm
400 A 90 200
1250 A 150 200
1
b
a
NSV0_01035
Trunking units with
Tap-off unit
BD2-AK1...,
BD2-AK02..., BD2-AK2...,
BD2-AK03..., BD2-AK3...
Tap-off unit
BD2-AK04..., BD2-AK05..., BD2-AK06...
BD2-BWV or BD2-BDV
(with or without tap-off unit)
BD2.-...-EE
(with or without tap-off unit)
c
mm
125
200
200
200
Positioning in the fire ceiling
1) For Z units depending on the lengths X*, Y*.
100
b
a
NSV0_01036
1
NSV0_01037a
1
Positioning in the fire wall
Mounting position
5
NSV0_01038
250 mm
1
When installing trunking units with fire barrier, the following
points must be observed:
• Only one trunking element may be passed through per component
opening
• The distance from the component opening to be closed to
other openings or fittings must be at least 20 cm. As an exception
to this, the spacing between adjacent component openings
for barriers can be reduced to up to 10 cm.
• Horizontally mounted busbar lines must be supported by a fixing
bracket fitted approx. 500 mm before and after the component
they pass through.
• The space $ surrounding the busbar trunking unit within the
component it passes through must be packed with mineralbased
mortar or fire barrier sealant.
• The gaps between PROMATECT-H(L) panels, the busbar
trunking unit and the component must be sealed with fire barrier
sealant (included in scope of supply if panels are required).
• The mortar or fire barrier sealant must conform to the applicable
regulations for establishing fire resistance rating or the
construction of the wall or ceiling
(e.g. DIN 1045 and DIN 1053 Part 1).
• The mortar or fire barrier sealant must be provided by the customer.
It must be installed in compliance with the locally applicable
standards and regulations.
• The installation work must be carried out according to pertinent
building regulations (included in the scope of supply).
NSV0_01039
5/100 Siemens LV 70 · 04/2011