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CABLE SECTIONS
NUM. DWELLINGS (max)
FACTORES DE CORRECCIÓN PARA INSTALACIONES DE AUDIO CON MÁS DE
CORRECTION FACTORS FOR AUDIO INSTALLATIONS WITH MORE THAN ONE
NUM. TELEPHONES PER DWELLING
Telephones
Telephones
Telephones
INSTALACIONES DIGITALES DE AUDIO
DIGITAL AUDIO INSTALLATIONS
MAX LENGTH Lmax (meters)
UN TELÉFONO POR VIVIENDA
TELEPHONE PER DWELLING
CORRECTION FACTOR
maximum cable length (Lmax)
dwelling.
street panel (Note 1).
Note 1: It is considered that a Power Supply is beside
a Street Panel when the cable length joining them is
less than:
- 2.5 meters for 0.22mm² section.
- 6 meters for 0.5mm² section.
- 12 meters for 1mm² section.
- 18 meters for 1,5mm² section.
- 30 meters for 2.5mm² section.
How to obtain the maximum length in installations in which there is
more than one telephone per dweling is indicated in the following
table, with said table being based on the previous simplified table
for audio installations.
A power supply beside each street panel (please see Note 1
in the DIGITAL AUDIO INSTALLATIONS Table).
number of dwellings
section of the cable
one telephone
one monitor
PREMISES
One telephone per
One power supply beside each
PREMISES
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