Surge protection for residential buildings

In modern residential buildings more and more electronic equipment is used. Today, households have TV, stereo and satellite receivers as well as PCs with access to the internet.
Also microwaves, refrigerators, and dish washers / washing machines are equipped with microprocessor systems. For security reasons, alarm systems have been installed as well as video surveillance.

Values of several 10,000 EUR have to be protected, as surges are fatal for all devices and systems.

Protecting personal values

First step: Protection of installations

All incoming and outgoing lines are inspected first. Generally, this includes lines for power supply, telephone, cable TV, external lighting, etc.

Residential buildings often have supply meters and subdistribution boards installed in one enclosure. DEHNventil^® can protect both the installation and the terminal equipment on the power supply side, even in case of direct lightning strokes.
The telephone connection, e.g. by ISDN, can be protected by BLITZDUCTOR^®XT . This protection is sufficient for safe operation of the NTBA as well as the close ISDN system. For DSL connections, the same SPD can be used.

Mostly, the heating system is installed in the basement. Its regulation can be protected by DEHNrail modular and BLITZDUCTOR^® XT .

For further distribution boards, SPDs Type DEHNguard^® modular should be installed.

Second step: Protection of terminal equipment

All terminal devices fed by two or several power supply systems require surge protection directly at their inputs. These are TV, video and stereo equipment as well as alarm, fire alarm, or video surveillance systems. The drawing on the right shows an example for the use of different SPDs. The antenna amplifiers can be protected by DEHNgate FF TV . DEHNgate is already designed for digital satellite systems.

The cascaded use of surge protective components makes the electrical installation compatible with the electronic systems - and is less expensive than expected.

Brochure "DEHN stops surges" PDF [2.2 MB] DS 614