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Siemens LV 70 · 2009
4Introduction
4/2 Overview4/3 Benefits4/3 Design4/6 Accessories
General data4/9 Technical specifications
Trunking units4/11 Selection and ordering data
Junction units4/12 Selection and ordering data
Feeder units4/12 Selection and ordering data
Tap-off units for international use4/13 Selection and ordering data
Ancillary equipment units for international use
4/19 Selection and ordering data
Tap-off units and ancillary equipment units for Belgium
4/21 Selection and ordering data
Tap-off units and ancillary equipment units for Denmark
4/22 Selection and ordering data
Tap-off units for France4/23 Selection and ordering data
Tap-off units for the United Kingdom4/24 Selection and ordering data
Tap-off units for Switzerland4/25 Selection and ordering data
Accessories4/27 Selection and ordering data
Configuration information4/29 Overview4/30 Design4/32 Function
Project planning aids4/34 Dimensional drawings
BD01 System – 40 ... 160 A
LV70_2009_en.book Seite 1 Dienstag, 28. Oktober 2008 9:33 09
Type-tested low-voltage switchgear and controlgear assembly (TTA) according to• IEC/EN 60439-1• IEC/EN 60439-2
Degree of protection• High degree of protection IP54 with tap-off points at sides and
bottom• Degree of protection IP50 with tap-off points at the top• Degree of protection increase to IP55 with optional equipment
Components
Trunking units• 5-wire system• 2 or 3 tap-off points spaced 1 m apart• 4 or 6 tap-off points spaced 0.5 m apart• Lengths of 2 m and 3 m
Junction units• Flexible change of direction
Feeder units• Universal infeed
Tap-off units• Up to 63 A• With built-in parts or for customized device installation• For 3, 4 or 8 modular widths (MW)• With or without device installation unit
Ancillary equipment units• For 4 or 8 modular widths (MW)• With or without device installation unit• With or without socket assembly
Accessories• Mounting sets for degree of protection IP55• Fixing and suspending• Coding sets• Fire protection kit S90
1
2
4 5
3
4
4
6
1
2
3
Trunking unit
Feeder unit Junction unit
4
5
Tap-off unit Ancillary equipment unit
6 Accessories
NSV0_00041
LV70_2009_en.book Seite 2 Dienstag, 28. Oktober 2008 9:33 09
7 Flexible power supply7 Easy and quick planning7 Time-saving mounting7 Reliable mechanical and electrical connection7 High stability, low weight7 Few basic modules required7 Storage-friendly system7 Variable change of the direction of the busbar line7 Versatile tap-off units7 Positive opening and closing of tap-off points7 Optional equipment for increasing the degree of protection to
IP55 for extreme environmental conditions
■ Design
Trunking units
Trunking units are available in 2 m and 3 m lengths. They consist of a galvanized metal enclosure with a light gray (RAL 7035) painted finish. They are equipped with 4 busbars for L1, L2, L3 and N (aluminum conductors; copper for 160 A; silver-plated copper pick-up and connection contacts).
The enclosure of the trunking unit also serves as PE conductor.
Five levels of current are available in only one frame size: 40 A, 63 A, 100 A, 125 A and 160 A.
The tap-off points are spaced at regular intervals of 0.5 m or 1 m on one side. The 2 m lengths have two or four tap-off points, the 3 m lengths have three or six.
The tap-off points are finger-safe. They are opened automatically by the tap-off units and close by themselves when the tap-off units are removed.
Connections
Assembly of the trunking units, also with end flanges and feeder units, is fast and inherently secure. The trunking unit or end flange is simply inserted in the lower housing of the joint block. Once the upper part of the joint block or feeder unit is fitted, a secure connection is established by tightening four screws. The PE path is established automatically when the enclosures are connected.
An expansion compensation mechanism is built into the joint block.
End flanges
The end flanges provide touch protection against direct contact at the ends of the busbar line. They are suitable for use with all systems. Two end flanges are supplied as standard with each feeder unit.
Junction units
The junction units, which consist of flexible conducting paths, are available in versions for 100 A and 160 A, each in 0.5 m and 1 m lengths.
Flexible junction units mean that the busbar line can be routed in any direction. The 0.5 m version is recommended for right angles, the 1 m version for fitting around obstacles or for adapting to variations in height.
NS
V0_
0004
2
L1
L2
L3
N
PE
NS
V0_
0004
3
NS
V0_
0004
4
NSV0_00045
NS
V0_
0004
6
NS
V0_
0004
7
LV70_2009_en.book Seite 3 Dienstag, 28. Oktober 2008 9:33 09
The feeder unit can be used as:• Entry feeder unit
• End feeder unit
• Center feeder unit
Two end flanges are included in the scope of supply with each unit.
M32, M40 and M50 cable entries are possible from four sides. For 160 A, an M63 cable entry can be fitted in a side. Plastic cable glands with strain relief must be used (not included in scope of supply).
Insulated tap-off units
Common features• Molded-plastic enclosure• Partially transparent cover for protective devices• Power pick-up through silver-plated lyre-shaped contacts• Reliable prevention of incorrect mounting• Cable entry is from one side only (use plastic cable glands
with strain relief, not included in scope of supply).• The tap-off unit must first be removed from the trunking before
it can be opened and the cable can be connected.• The connecting cable should be supported separately if
necessary.
Tap-off units with components fitted• One size for 1 cylindrical fuse (10 × 38 mm), phase assign-
ment L1, L2 or L3 freely selectable• One size for 3 cylindrical fuses (10 × 38 mm)• One size with 3 MW (1 MW = 18 mm; MW = modular width)
There are various versions with fuse bases, miniature circuit breakers, Schuko and CEE socket outlets up to 32 A
BD01-AK01X/ZS
BD01-AK02X/ZS3
BD01-AK02M0/CEE165A163
NS
V0_
0004
8
NSV0_00049
NS
V0_
0005
0
NSV0_00051
NSV0_00
052
NSV0_00
053
NSV0_00
054
LV70_2009_en.book Seite 4 Dienstag, 28. Oktober 2008 9:33 09
Tap-off units for free arrangement of components• One size with 3 MW; can be operated from outside through
hinge switch incorporated in cover (1 MW = 18 mm; MW = modular width).
• Installation of devices (e.g. miniature circuit breakers) according to DIN 43871 possible up to 32 A.
BD01-AK02M0/F
Aluminum tap-off units
Common features
Common features:• The enclosure is made from aluminum and molded plastic at
both ends.• A standard mounting rail is built-in for component mounting.• Power pick-up through silver-plated lyre-shaped contacts• The isolator built into the tap-off unit ensures that the tap-off
unit is voltage-free when the cover is open.• The tap-off unit can only be fitted to or removed from the tap-
off point with its cover open (contacts retracted).• Reliable prevention of incorrect mounting• Cable entry is possible from three directions (use plastic cable
glands with strain relief; not included in scope of supply).• Can be combined with ancillary equipment units for additional
functions.• The connecting cables should be supported separately if
necessary.
Tap-off units with components fitted• Two sizes with 4 MW or 8 MW (1 MW = 18 mm; MW = modular
width)• Various versions with fuse bases, miniature circuit breakers up
to 63 A, with Schuko and CEE socket outlets up to 32 A.• Versions with fitted miniature circuit breaker have a device in-
stallation unit.
BD01-AK2M1/CEE165A163
Tap-off units for free arrangement of components• Two sizes with 4 MW and 8 MW (1 MW = 18 mm;
MW = modular width)• With or without device installation unit for external operation
(two sizes with 4 MW and 8 MW respectively)• Installation of devices (e.g. miniature circuit breakers)
according to DIN 43871 possible up to 63 A.
BD01-AK1M1/A161
Ancillary equipment units
Common features• The enclosure is made from aluminum and molded plastic at
both ends.• Cable entry is possible from four directions (use plastic cable
glands with strain relief; not included in scope of supply).• The connecting cable should be supported separately if
necessary.• Can be combined with tap-off or feeder units• A standard mounting rail is built-in for component mounting.• Two sizes with 4 MW and 8 MW (1 MW = 18 mm;
MW = modular width)• Without or with Schuko or CEE socket outlets• With or without device installation unit for external operation
(two sizes with 4 MW and 8 MW respectively)• Installation of devices (e.g. fuse bases) according to
DIN 43871 possible up to up to 35 A.
BD01-GK2X/F
BD01-GK2X/2SD163CEE165
NS
V0_
0005
5N
SV
0_00
056
NS
V0_
0005
7N
SV
0_00
058
NS
V0_
0005
9
LV70_2009_en.book Seite 5 Dienstag, 28. Oktober 2008 9:33 09
The higher degree of protection is achieved by means of additional seals and a flange at the tap-off point or connection point.
Tap-off point: BD01-FAS
Connection point: BD01-FS
Feeder units
With mounting position at the bottom, the higher degree of protection is achieved by means of additional seals and a flange at the connection point.
Mounting position at the bottom: BD01-FES
With mounting position at the side, the higher degree of protection is achieved by means of additional seals and an edge protector at the sides of the feeder unit. When the feeder unit is installed at the end of a busbar line, just one seal and one edge protector are needed.
Mounting position at the side: 2 × BD01-KS
Mounting position at the side and end of a busbar line: BD01-KS
Tap-off units
The higher degree of protection is achieved by means of additional seals and an edge protector at the sides of the tap-off unit.
BD01-AK01X-IP55, BD01-AK02X-IP55
BD01-AK1X-IP55, BD01-AK2X-IP55
NSV0_00971
NSV0_00972
NSV0_00973
NSV0_00974
NSV0_00975
NSV0_00976
NSV0_00977
LV70_2009_en.book Seite 6 Dienstag, 28. Oktober 2008 9:33 09
The universal fixing brackets can be used for wall and ceiling mounting. The maximum fixing interval at normal mechanical loads is 3 m for edgewise and 1.5 m for flat mounting.
At higher mechanical loads (e.g. pulling of plugs), an intermediate support with an additional fixing bracket at the trunking unit is recommended.
Once the fixing point is decided, the tabs on the fixing bracket are pushed in to fix the busbar line.
BD01-B
Hanger brackets
These fixing brackets can be used for suspension of flat-mounted trunking units. Also they can be fastened at the connection points in order to increase the mechanical rigidity of the trunking units.
BD01-BAP
Suspension brackets
The suspension brackets can be used for wall, ceiling and suspension mounting of the system. They can be fitted at any point of the trunking unit. The maximum fixing interval at normal mechanical loads is 3 m for edgewise and 1.5 m for flat mounting.
At higher mechanical loads (e.g. pulling of plugs), an intermediate support with an additional fixing bracket at the trunking unit is recommended.
BD01-BA
NS
V0_
0006
0
NS
V0_
0006
1
NS
V0_
0006
2
LV70_2009_en.book Seite 7 Dienstag, 28. Oktober 2008 9:33 09
The systems can be coded for different frequencies or voltages. For this purpose, the BD01-K coding set can be fitted by the user to the installed system at each tap-off point. Four coding positions are possible.
Coding on the tap-off point
Tap-off units can be coded on site by adapting the front face.
Coding on the tap-off unit
Sealing
Every tap-off point on the trunking unit can be sealed.
Feeder, junction, tap-off and ancillary equipment units can be made sealable with additional components (please inquire).
Cable glands
For the feeder, tap-off and ancillary equipment units, use plastic cable glands with strain relief (not included in scope of supply).
Terminals
We recommend the use of Weidmüller or Phoenix screw terminals for the N and PE conductor connections in tap-off and ancillary equipment units.
Fire protection
If the busbar system is routed through a fire wall or ceiling, fire protection must be fitted. Depending on the customer's requirements, Siemens offers fire protection with a fire resistance rating of S90 (see page 4/28).
Factory-fitted equipment:• External fire protection as kit for mounting by the customer
Mineral mortar or fire protection material to seal any gaps between the busbar trunking element and the component must be provided by the customer.
BD01-S90 fire protection
The approval papers for Germany must be ordered separately:• BD01-S90-ZUL-D approval kit
(certificate of approval, wall-mounted signs and declaration of conformity)
NSV0_00063
NS
V0_
0006
4
NS
V0_
0145
9
LV70_2009_en.book Seite 8 Dienstag, 28. Oktober 2008 9:33 09
Busbar trunking systems must be protected against overload and short-circuits. Fuses and miniature circuit breakers must be selected so that the admissible current carrying capacity
corresponding with the ambient conditions is not exceeded. For overload and short-circuit protection, we recommend the use of motor protectors or circuit breakers.
Tap-off units
Feeder and tap-off units, conductor cross-sections
Type BD01-...
Standards and specifications IEC/EN 60439-1 and -2
Climatic proofing Damp heat, constant, according to IEC 60068-2-78Damp heat, cyclic, according to IEC 60068-2-30
Ambient temperature, min./max. °C -5/+40
Degree of protection acc. to IEC/EN 60529
• Edgewise; tap-off points at the side IP54, increase to IP55 with optional equipment
• Flat; tap-off points at the bottom IP54, increase to IP55 with optional equipment
• Flat; tap-off points at the top IP50, increase to IP55 with optional equipment
Material
• Trunking unit enclosures Galvanized, painted sheet steel
• Busbars Al or Cu
• Pick-up and connection contacts Cu, silver-plated
Mounting position Edgewise or flat
Weights See "Selection and Ordering Data"
Type BD01-AK...
Version 3- or 5-pole
Rated current Ie A 63
Switching capacity of the built-in switch-disconnector acc. to IEC/EN 60947-3 at 400 V
* You can order this quantity or a multiple thereof.
■ Selection and ordering data
Use plastic cable glands with strain relief (not included in scope of supply).1) Use M32, M40 or M50 cable glands.
2) Use M63 cable glands.
Version Rated current Length DT Type Order No. PS* Weight per unit approx.
A m kgJunction unitsFlexible change of direction 100 0.5 A BD01-R1 BVP:034260 1 unit 1.200
1 A BD01-R2 BVP:034261 1 unit 2.050
160 0.5 A BD01-160-R1 BVP:090166 1 unit 1.750
1 A BD01-160-R2 BVP:090167 1 unit 3.050
NS
V0_
0027
4
Version Rated current Conductor cross-section
DT Type Order No. PS* Weight per unit approx.
A mm2 kgFeeder unitsMolded-plastic enclosure, with 2 end flangesCan be fitted at all connection terminals and the end of the busbar run, can be combined with BD01-GK... ancillary equipment units
• 6 cable entries from 4 sides 100 501) A BD01-E BVP:034259 1 unit 1.000
• Cable entry from 2 sides 160 952) A BD01-160-E BVP:090165 1 unit 1.400
NS
V0_
0024
2N
SV
0_00
243
LV70_2009_en.book Seite 12 Dienstag, 28. Oktober 2008 9:33 09
* You can order this quantity or a multiple thereof.
Use plastic cable glands with strain relief (not included in scope of supply).
Version Rated current Rated operational voltage
DT Type Order No. PS* Weight per unit approx.
A V kgTap-off units, aluminum, size 1, with device installation unitWith 3 ×1-pole miniature circuit breaker 10 A, characteristic B 10 400 A BD01-AK1M1/A101 BVP:203098 1 unit 1.600
With 3 ×1-pole miniature circuit breaker 16 A, characteristic B 16 400 A BD01-AK1M1/A161 BVP:034266 1 unit 1.600
With 3-pole miniature circuit breaker 32 A, characteristic C 32 400 A BD01-AK1M1/A323 BVP:034267 1 unit 1.600
Freely assignable (Pv max. 13 W), 4 MW (MW = modular width), with integrated standard mounting rail
35 400 A BD01-AK1M1/F BVP:034273 1 unit 1.000
NS
V0_
0025
2N
SV
0_00
252
NS
V0_
0025
2N
SV
0_00
253
LV70_2009_en.book Seite 16 Dienstag, 28. Oktober 2008 9:33 09
* You can order this quantity or a multiple thereof.
Use plastic cable glands with strain relief (not included in scope of supply).
Version Rated current Rated operational voltage
DT Type Order No. PS* Weight per unit approx.
A V kgTap-off units, aluminum, size 2, with device installation unitWith 1-pole miniature circuit breaker 16 A, characteristic B, with 2-pole RCCB 16 A/30 mA and with 2 Schuko socket outlets 16 A
16 230 A BD01-AK2M1/ 2SD163FIA161
BVP:034276 1 unit 2.000
With 1-pole miniature circuit breaker 16 A, characteristic C, with 2-pole RCCB 25 A/30 mA and with 1 CEE socket outlet 16 A, 3-pole
16 400 A BD01-AK2M1/ CEE163FIA161
BVP:660867 1 unit 2.000
With 3-pole miniature circuit breaker 16 A, characteristic C, with 4-pole RCCB 25 A/30 mA and with 1 CEE socket outlet 16 A, 5-pole
16 400 A BD01-AK2M2/ CEE165FIA163
BVP:660866 1 unit 3.500
With 3-pole miniature circuit breaker 16 A, characteristic C, and with 1 CEE socket outlet 16 A, 5-pole
16 400 A BD01-AK2M1/ CEE165A163
BVP:034280 1 unit 2.000
With 3-pole miniature circuit breaker 32 A, characteristic C, and with 1 CEE socket outlet 32 A, 5-pole
32 400 A BD01-AK2M1/ CEE325A323
BVP:034282 1 unit 2.100
Freely assignable, 8 MW (MW = modular width), with integrated standard mounting rail
• Freely assignable (Pv max. 16 W) 35 400 A BD01-AK2M2/F BVP:034284 1 unit 1.360
• Freely assignable (Pv max. 22.5 W) 63 400 A BD01-AK2HM2/F BVP:233571 1 unit 1.360
NS
V0_
0025
7N
SV
0_00
258
NS
V0_
0147
3
NS
V0_
0025
8N
SV
0_00
258
NS
V0_
0025
9
LV70_2009_en.book Seite 18 Dienstag, 28. Oktober 2008 9:33 09
Tap-off units and ancillary equipment unitsfor Denmark
4/22 Siemens LV 70 · 2009
4
* You can order this quantity or a multiple thereof.
■ Selection and ordering data
Adapter rings/screw adapters, fuse links and screw cap not included in scope of supply with tap-off units. M50 cable grommets and screws for connecting the enclosure are included in scope of supply with ancillary equipment units.
Use plastic cable glands with strain relief (not included in scope of supply).
Version Rated current Rated operational voltage
DT Type Order No. PS* Weight per unit approx.
A V kgTap-off units, aluminum, size 1With 1-pole fuse base D01 and with 2 socket outlets 10 A
13 230 X BD01-AK1X/ 2DKS103S14
BVP:203099 1 unit 1.400
With 1-pole miniature circuit breaker 13 A, characteristic C, and with 2 socket outlets 10 A
13 230 X BD01-AK1X/ 2DKS103A131
BVP:203100 1 unit 1.500
Tap-off units, aluminum, size 2With 2 × 1-pole fuse base D01, with 4 socket outlets 10 A
13 230 X BD01-AK2X/ 4DKS103S14
BVP:203102 1 unit 2.000
With 2 × 1-pole miniature circuit breaker 13 A, characteristic C, and with 4 socket outlets 10 A
13 230 X BD01-AK2X/ 4DKS103A131
BVP:203103 1 unit 2.200
Tap-off units, aluminum, size 2, with device installation unitWith 1-pole miniature circuit breaker 13 A, characteristic C, with 2-pole RCCB 16 A/30 mA and with 2 socket outlets 10 A
13 230 X BD01-AK2M1/ 2DKS103FIA131
BVP:203101 1 unit 2.000
Ancillary equipment units, aluminum, size 1Pv max. 13 W, with 4 socket outlets 10 A
– 400 X BD01-GK1X/4DKS103 BVP:203104 1 unit 1.200
Ancillary equipment units, aluminum, size 2Pv max. 16 W, with 2 socket outlets 10 A and 1 CEE socket outlet, 16 A, 5-pole
– 400 X BD01-GK2X/ 2DKS103CEE165
BVP:203105 1 unit 1.600
NS
V0_
0025
0N
SV
0_00
250
NS
V0_
0025
5N
SV
0_00
255
NS
V0_
0025
7
NS
V0_
0026
1
NS
V0_
0026
4
LV70_2009_en.book Seite 22 Dienstag, 28. Oktober 2008 9:33 09
* You can order this quantity or a multiple thereof.
■ Selection and ordering data
Fuse links are not included in scope of supply.
Use plastic cable glands with strain relief (not included in scope of supply).
Version Rated current Rated operational voltage
DT Type Order No. PS* Weight per unit approx.
A V kgTap-off units, aluminum, size 2With 3-pole fuse base SP51, for 3 cylindrical fuses 14 mm × 51 mm
32 400 X BD01-AK2X/F1451 BVP:203126 1 unit 1.700
Tap-off units, aluminum, size 2, with device installation unitWith 2-pole miniature circuit breaker 16 A, characteristic B, with 2-pole RCCB 40 A/30 mA and with 2 socket outlets 16 A
16 230 X BD01-AK2M1/ 2PCUTE16AFI40
BVP:214821 1 unit 2.000
NS
V0_
0025
4N
SV
0_00
257
LV70_2009_en.book Seite 23 Dienstag, 28. Oktober 2008 9:33 09
• With 1 CEE socket outlet 16 A, 5-pole 16 400 X BD01-AK2X/ CEE165GB163
BVP:203124 1 unit 2.000
• With 1 CEE socket outlet 32 A, 5-pole 32 400 X BD01-AK2X/ CEE325GB323
BVP:203125 1 unit 2.100
Tap-off units, aluminum, size 2, with device installation unitWith 1-pole miniature circuit breaker 13 A, characteristic B, with 2-pole RCCB 16 A/30 mA and with 1 socket outlet BS1363, 13 A
13 230 X BD01-AK2M1/ BS133FIA131
BVP:203123 1 unit 2.500
NS
V0_
0024
9N
SV
0_00
267
NS
V0_
0024
9N
SV
0_00
267
NS
V0_
0025
2
NS
V0_
0025
6N
SV
0_00
268
LV70_2009_en.book Seite 24 Dienstag, 28. Oktober 2008 9:33 09
* You can order this quantity or a multiple thereof.
Use plastic cable glands with strain relief (not included in scope of supply).
Version Rated current Rated operational voltage
DT Type Order No. PS* Weight per unit approx.
A V kgTap-off units, aluminum, size 1, with device installation unit with ancillary equipment unit, aluminum, size 1With 3 × 1-pole miniature circuit breaker 16 A, characteristic C, and 3 socket outlets type 23, 16 A, 3-pole
16 230 X BD01-AK1M1/GK1X/ 3T23-3A161
BVP:611312 1 unit 2.700
Tap-off units, aluminum, size 2, with device installation unit with ancillary equipment unit, aluminum size 1With 3 × 1-pole miniature circuit breaker 16 A, characteristic C, and 4-pole RCCB 25 A/30 mA with 3 socket outlets type 23, 16 A, 3-pole
16 230 X BD01-AK2M2/GK1X/3T23-FI254-3A161
BVP:611313 1 unit 3.500
With 3-pole miniature circuit breaker 16 A, characteristic C, and 4-pole RCCB 25 A/30 mA with 1 socket outlet type 25, 16 A, 5-pole
16 400 X BD01-AK2M2/GK1X/T25-FI254-A163
BVP:611315 1 unit 3.500
With 3-pole miniature circuit breaker 63 A, characteristic C, and 1 CEE socket outlet 63 A, 5-pole
63 400 X BD01-AK2HM2/GK1X/CEE635-A633
BVP:611316 1 unit 2.500
NS
V0_
0031
7
NS
V0_
0031
8N
SV
0_00
319
NS
V0_
0032
0
LV70_2009_en.book Seite 26 Dienstag, 28. Oktober 2008 9:33 09
... m Busbar trunking system (see Appendix for diagram)• As type-tested low-voltage switchgear and controlgear combination (TTA)
according to IEC/EN 60439-1 and -2• Rated current, corresponds to thermal rated current
at max. +40 °C and +35 °C on a 24 h average for indoor installation• Rated insulation voltage Ui = 400 V AC, 400 V DC;
overvoltage category/degree of pollution III/3• Operational voltage ... V, ... Hz• Rated peak withstand current of busbar trunking system,
... kA tested according to IEC/EN 60439-1• Degree of protection IP54 with tap-off points at sides and bottom,
otherwise IP50; increase to IP55 with optional equipment• 5-conductor system: L1, L2, L3, N, PE• Busbars: silver-plated Cu connection and pick-up contacts;
Al or Cu conductors; supported by insulated busbar supports• Trunking units steel enclosed, galvanized and with paint finish;
color: light gray, RAL 7035• Halogen-free• Busbar connection via joint block with built-in expansion compensation• Tap-off points on one side, every 0.5 m or 1 m• Supplied ready for connection with all assembly parts• Made by Siemens• Type BD01-...Comprising:
LV70_2009_en.book Seite 29 Dienstag, 28. Oktober 2008 9:33 09
The following data must be considered when configuring the busbar lines:• Installation flat or upright, horizontal or vertical, quantity, type
and approximate ratings of prospective loads, p.f.• Rated diversity factor α.• If data are not available, use only the rated diversity factor• Feeding transformers (short-circuit current)• Nature of the installation site (dimensions, construction of the
building, transport paths, cellar)• Routing of supply lines from other power sources• Crane operation• Special requirements
Operational current
The operational current is calculated using the following formula:
with:
If no data are available about the actual currents occurring simultaneously, the following values according to IEC/EN 60439-1 apply:
Short-circuit protection
A system can be protected against short-circuit alone by fitting low-voltage LV HRC fuses (gL) into the incoming supply; the fuse size to be appropriate for the prospective short-circuit current at the place of installation.
Overcurrent protection devices for overload and short-circuit protection
Busbar trunking systems must be protected against overload and short-circuits. Fuses and miniature circuit breakers must be selected so that the admissible current carrying capacity corresponding with the ambient conditions is not exceeded.
Due to their high response threshold (1.3 to 1.6 times rated current) and their long rupturing times at small overcurrents, fuses are not suitable for overload protection. Therefore we recommend the use of motor protectors or circuit breakers.
The following can be used:
1) Icf = rated conditional short-circuit current of the busbar trunking system and its outgoing feeders when protected by circuit breakers
The prospective network short-circuit current and the let-through characteristic of the switches must be taken into account in each case.
Temperature characteristic of BD01 systems
IB = Operational current (A)
Pinst = Installed power (kW)
α = Rated diversity factor
b = Supply factor
b = 1 = Single feeder unit
b = ½ = Double end feeder unit
Ue = Rated operational voltage (V)
p.f. = Power factor
Number of main circuits Rated diversity factor α
2 and 34 and 56 to 9 inclusive10 and more
0.90.80.70.6
IB =Pinst × α × b�3 × U × p.f.
× 103
System Overcurrent protective devices
Icc = 15 kA1)Icc = 25 kA
BD01-40 5SY4 340-6 3VL27 05
BD01-63 5SY4 363-6 3VL27 06
BD01-100 – 3VL27 10
BD01-125 – 3VL27 12
BD01-160 – 3VL27 16
NS
V0_
0007
1
-5
130
120
110
100
90
80
70
+5 +15 +25 +35 +45 +55 +65
Rated current (%)
Ambient temperature °C (average over 24 hours)
LV70_2009_en.book Seite 32 Dienstag, 28. Oktober 2008 9:33 09
For long busbar lines, it may be necessary to calculate the voltage drop.
with
Factor a used in the equation for calculating the voltage drop is dependent on the load distribution.
Fire protection
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 BD01 busbar trunking systems can be equipped with fire protection and generally comply with the standards for buildings including high-rise buildings.
The fire resistance class corresponds with S 90 according to DIN 4102 Part 9. The demands for verification of fire resistance duration at 90 min as specified by ISO 834 according to IEC/EN 60439-2 are fulfilled.
Configuration
To ensure fire protection according to S90, the following points must be observed when configuring and installing trunking units with fire protection:• The center of the fire protection in the trunking unit must be
positioned in the center of the fire wall.• There are no tap-off points in the area covered by the fire pro-
tection.• The trunking units must be installed by an approved fire
protection installation specialist.• Fire protection for installation in lightweight walls are available
on request.
Positioning in the fire wall
Observe the following when installing the trunking units:• The space $ surrounding the busbar trunking unit within
the component it passes through must be packed with mineral-based mortar or fire protection sealant.
• The mortar or fire protection sealant must conform to the applicable regulations for establishing fire resistance rating or the construction of the wall or ceiling.
• The installation must be carried out according to pertinent building regulations. The approval papers can be ordered separately.
ΔU = Voltage drop (V)IB = Operational current (A)l = Length (m)a = Load distribution factor see TableR = Ohmic resistance R20 (mΩ/m)X = Inductive resistance X20 (mΩ/m)cos ϕ = Power factor (p. f.)
Load distribution Factor a
Infeed at A, one outgoing feeder at B 1
Infeed at A, outgoing feeders at B, C, D, E 0.5
Infeed at A, outgoing feeders at B, C 0.25
Infeed at A, outgoing feeders at B, C, D, E 0.125
Infeed at A, B, outgoing feeders at C, D, E, F 0.25
1
40 A
63 A
125 A
160 A
100 A
30
28
26
24
22
20
18
16
14
12
10 NS
V0_
0007
0
cos
U (
V/1
00 m
)
0,4 0,5 0,6 0,7 0,8 0,9
ΔU = a × �3 × IB × l × (R × cos ϕ + X × sin ϕ) × 10–3 (V)
AB
AEDCB
CAB
CEADB
FEDCA B
650
1
NS
V0_
0146
2
140
1 Packing
LV70_2009_en.book Seite 33 Dienstag, 28. Oktober 2008 9:33 09