Phoenix Contact SCK-M-U-1500V Handleiding (128 Pagina's)

Handleiding

SOLARCHECK family

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PHOENIX CONTACT 105608_en_01

6.4 Cabling

The SOLARCHECK devices have been designed and tested to EMC behavior in accor-

dance with IEC 61010 and corresponding cross-references. As long as the installation in-

structions are followed, the devices will withstand the specified influences.

6.4.1 Installation instructions

In general, you should keep a sufficient distance between the power cables and data cables

in order to avoid interference from the generator. Furthermore, make sure that the data ca-

bles are shielded properly and that the shield is connected correctly.

Installing the data cables and power cables in separate cable ducts is therefore the best and

recommended form of installation.

Figure 6-1 Distances between data cables and power cables

Option a: installation of data (D) and power (P) cables at distance (s)

Option b: installation of data (D) and power (P) cables in separately grounded cable ducts

On the basis of the aforementioned DIN EN 50174 standard, an example calculation of the

required distances between data and power cables at defined power levels and interfer-

ence frequencies of 50 Hz is shown here. The interference frequencies in a PV field can dif-

fer significantly and exert a greater influence accordingly. For example, for the most part the

inverter emits high-energy interference with 10 kHz to 20 kHz. A distance of at least 0.3 m

between the data cables and power cables must always be maintained.

P

D

s

P

D

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