Siemens EK 720 Series Instrucciones de operaciones descargar pdf (Pagina 17)

SCALANCE W760/W720

Operating Instructions, 03/2015, C79000-G8976-C322-04

Connection

5.1

Lightning protection, power supply and grounding

Lightning protection

WARNING

Danger due to lightning strikes

Antennas installed outdoors must be within the area covered by a lightning protection

system. Make sure that all conducting systems entering from outdoors can be protected by

a lightning protection potential equalization system.

When implementing your lightning protection concept, make sure you adhere to the VDE

0182 or IEC 62305 standard.

Suitable lightning protectors are available in the range of accessories of SIMATIC NET

Industrial WLAN:

● Lightning protector LP798-1N (order no. 6GK5798-2LP00-2AA6)

● Lightning protector LP798-2N (order no. 6GK5798-2LP10-2AA6)

Note

We recommend that you use the maintenance

-free lightning protector LP798-2N.

Exception: When there is also DC power supplied via

the antenna cable. In this case, only

the lightning protector LP798

-1N can be used.

WARNING

Danger due to lightning strikes

Installing this lightning protector between an antenna and a SCALANCE W700 is not

adequate protection against a lightning strike. The LP798-1N lightening protector only

works within the framework of a comprehensive lightning protection concept. If you have

questions, ask a qualified specialist company.

Note

The requirements of EN61000

-4-

5, surge immunity tests on power supply lines, are met only

when a Blitzductor is used with 24 VDC:

BVT AVD 24

type no. 918 422

Manufacturer: DEHN+SÖHNE GmbH+Co.KG, Hans

Dehn Str. 1, Postfach 1640, D -

92306 Neumarkt, Germany

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Siemens EK 720 Series Instrucciones de operaciones Pagina 17