The main problem is that the installation of lighting in suspended ceilings often
just do not professionals, " craftsmen of all trades" of the brigade , which
engaged in installing the ceiling. As a result , are allowed at least five mistakes :

1. RB clearly indicates that the installation of wires in suspended ceilings equal
to the outside wiring, and therefore it is subject to the same rules
that for any other lighting networks. Therefore, at least
prokladovat to wire in non-combustible sleeves. Quite often there
the opposite - simply throw over the wire sections, which are attached to the panel.
In addition to the risk of fire and short-circuit and it threatens more prosaic
Conventional risk of mechanical damage. In addition, we live in Russia
and so are not ruled out "leakage" from the neighbors above. The appearance of the ceiling
they may not be reflected, but for the wiring can be fatal.
2. Unacceptable and also the various twists and branches outside raspaechnyh boxes.
Most often, the master of the crews that rule is ignored. Moreover, most
the best option is to mount a separate line to each fixture
from one distribution boxes. But unskilled masters prefer
save the wire ... 3. Too often admit mistakes and quite scary -
selected section of wire is not on the basis of design load, and based on the cost.
As a result, in the false ceiling can be wires, which are generally not designed
for lighting networks. That is what most often is the cause of fires.
4. When installing any lighting system is the golden rule - switch
should ALWAYS break is not "zero" and "phase", and chuck the phase wire should
be attached to a long-range contact. When installing a nonprofessional
usually observed with a probability of 50 percent. Simply put, "how it goes."
5. The ceilings are made now, not only in dry areas, but also in
humid rooms - bathrooms, kitchens and bathrooms. But such accommodation
relate to the premises "high risk". For them, there are quite
certain rules - prohibits any type of outdoor wiring is not permitted
gasket in metal pipes or hoses, it becomes mandatory requirement
use double-insulated and protected wiring accessories. With my
Hand on heart, we can honestly say - as does almost none. So,
exposing occupants to danger life. We're not talking about a "small"
sins like the fact that the wires are connected more often than not soldered terminals
or other permissible means, and a primitive strand. As a result, although
"Everything works as it should," the result of this wiring can be safely
to call a time bomb. How is it right? The best
and convenient option - go for 12 volt lighting system. In addition to the warranty
complete safety, the system gives a lot of other advantages - you can
the use of inexpensive LED light sources, greatly reducing
electricity consumption, there is no need to protect the wiring, it is permissible
use wire smaller cross-section and thereby save money. As a result, the vast
most cases, the transition to 12 volts will give significant savings on materials
at the same cost for installation. But only in comparison with competently assembled
lighting system at 220 V. It is only necessary to consider some nuances: 1.
The wires should be used with PVC insulation - suitable brands such as
MF, and even PVC. Conductor cross-section is chosen according to the load. In most
usually sufficient for a minimum of such marks by wire cross section 0.5 or
0.75 mm ^ 2. 2. Do not forget that the transformers are designed
lighting in suspended ceilings, designed for a well-defined power
and have multiple output windings, the load which must be distributed
evenly. For example, suppose that the transformer has a nominal power of 240
Watt and four output windings (terminal pairs). Hence, for each winding can be
connect either a single lamp at 60 watts or 2 lamps of 30 watts. 3. Importantly
also remember that the switch should not de-energize the power supply circuit
lamps and transformers. So if you need more options
lighting in suspended ceilings (such as "burn all," "burning lamp 5")
you'll need to use multiple transformers. In addition, it is desirable
consider the protection of low voltage circuits from mechanical damage, as well as
Humidity, if installation of lighting in suspended ceilings is in the relevant
room. Many refuse to go to 12 for the lighting system
Due to the fact that most shops are 12 fixtures
only products of smaller size than the model at 220 W. Such lamps
really will be lost in the ceiling of large area. But it is possible
solve the problem is very simple - just insert a 'small' lights
in "large" - are ideal. This technique can be applied during the transition
with the system is mounted on a 220 to 12V system. However, you can do
and without such tricks - in specialized stores can be found almost
any lamp. The same applies to other design light sources
- Go to 12 gives complete freedom to use a variety of LEDs
- From simple to blinking. Moreover, all creative experiments will be safe
100 percent. If you decide to stop at the "classic" 220
lighting system in suspended ceilings, then will give you some tips
not to step on the rake, which is a hundred times more advanced: 1. Not
Take the time to accurately calculate the number of lamps and the nominal load
Before going to the store. Make it easy - decide to power
each light and add the results. 2. Knowing the rated load,
Calculate the required cable size. The calculation is simple - divide the total
load power at 220. If the number is less than 10 (as soon
all will), the minimum wire size for the installation of lighting will be
0, 75 mm ^ 2. If 10 to 15 - a 1 mm ^ 2, if more than 17 - the 1, 5 mm ^ 2. Wires
Apply stamps PV-1, MF-3 MF-4 or NYM. 3. Think about the location
raspaechnyh boxes in order to minimize their number. The ideal case -
one box from which to each lamp is a conductor. 4. Do not forget
about protection of wires - it is permissible to use corrugated pipe
PVC does not support combustion (electrical). 5. Take care
that all connections have been made in the distribution boxes and the only method
soldering or fastening with the use of terminals. 6. Do not forget about phasing.
By following these simple rules, we can ensure that the ceiling wiring
will be durable and safe.

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