ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación descargar pdf (Pagina 293)

The various subnets of the electrical network partly differ by the network

owner, on the one hand (cables, pylons, infrastructure devices, and so forth), which

is in general the community for HTA electrical networks, and by the network opera-

tor, on the other hand, i.e. the one that uses, supplies, services, and maintains the

network and the infrastructure devices forming it, generally an electrical utility for

LV electrical networks.

Figure 12.2 illustrates this sharing of responsibilities for an LV network for the

connection of the private electrical network to the public electrical network repre-

sented by the meter.

It is important to know this sharing of responsibilities should a PLC network be

deployed, since the PLC devices must be installed on the various parts of the electri-

cal network to allow PLC signal propagation from the IP network connection point

to the outlets of the public electricity network users.

Electrical Network Operators

For an electrical network operator, whether local or national, or even international,

which has electrical networks in some geographical locations only or distributed all

over the country, the installation of a PLC network makes it a telecommunications

operator like an Internet access provider for Internet accesses. This implies that it

takes on the duties of a telecommunications network installer and manager within

274 PLC for Communities

Figure 12.1 Architecture of electrical subnets

Figure 12.2 Sharing of responsibilities for an electrical distribution network

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ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación Pagina 293