Catalog LV 70 2011 - Low & Medium Voltage - Siemens
Catalog LV 70 2011 - Low & Medium Voltage - Siemens
Catalog LV 70 2011 - Low & Medium Voltage - Siemens
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© <strong>Siemens</strong> AG <strong>2011</strong><br />
Busbar Trunking Systems, Overview<br />
Busbars instead of cables<br />
■ Overview<br />
Easier when it comes to planning<br />
Easy to plan, quick to install and flexible to use: Busbar trunking<br />
systems from <strong>Siemens</strong> bring energy economically into any building.<br />
The power distribution system can be precisely planned<br />
from the total load rating and the type and number of loads. Clarity<br />
is assured by the line-shaped network topology with regularly<br />
arranged load feeders. Using standardized sizes, all applications<br />
can be implemented quickly and in minimum space.<br />
Quicker when it comes to installing<br />
Benefits during installation: Two-man assembly of busbar trunking<br />
systems saves time and money compared to the costly cable<br />
installation method. Installation errors are practically ruled out by<br />
the safe and user-guided connection technology. No special<br />
tools are required. Another benefit for quick installation: <strong>Siemens</strong><br />
busbar trunking systems are easy and therefore quick to mount<br />
with large distances between fixing centers (up to 4 m for bars<br />
compared to every 1.5 m for cables).<br />
Busbar trunking systems from <strong>Siemens</strong> are a cost-effective alternative<br />
to cable installation.<br />
High short-circuit strength and minimum fire load<br />
mean greater safety<br />
A step-ahead in terms of safety – be it short-circuit resistance or<br />
fire load. The BD2A-250 bus trunking systems have a fire load of<br />
just 1.32 kWh/m, for example, while the figure for comparable<br />
cables (NYY 4 × 95/50 mm 2 ) is 5.19 kWh/m. Also, the bars are<br />
halogen-free. Busbar trunking systems from <strong>Siemens</strong> have a<br />
high short-circuit strength. And the near-load protection from<br />
short-circuiting also facilitates troubleshooting.<br />
2<br />
High fire load with cables<br />
With cable installation, new loads are connected by way of an additional<br />
sub-distribution board, which is costly and time-consuming<br />
Tap-off units near the loads make local arrangements more transparent<br />
<strong>Low</strong> fire load with busbar trunking system<br />
More flexible in case of expansions and modifications<br />
If the power distribution system has to be adapted to new requirements,<br />
the busbar will take you quicker to your goal.<br />
For example, new tap-off units can simply be mounted on the<br />
tap-off points. The system can be expanded and modified without<br />
difficulty. Tap-off units and system parts increase the flexibility.<br />
Cost-intensive downtimes are eliminated or minimized. The<br />
power distribution system enables faultless operation with high<br />
user-friendliness and safety.<br />
<strong>Siemens</strong> <strong>LV</strong> <strong>70</strong> · 04/<strong>2011</strong><br />
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