Maximum reliability and efficiency when testing cables thanks to measuring rooms with high shielding effectiveness and provisions for air-cushion access

Press Release

Shielded room for routine tests on high-voltage cables for use in the cable industry
Shielded rooms from HIGHVOLT are fully equipped. In addition to the electrical installation and illumination, additional portals and personnel doors, a crane system, air conditioning, and provisions for rail-borne access are included, depending on the customer's specifications. Shielded room for routine tests on high-voltage cables for use in the cable industry Shielded rooms from HIGHVOLT are fully equipped. In addition to the electrical installation and illumination, additional portals and personnel doors, a crane system, air conditioning, and provisions for rail-borne access are included, depending on the customer's specifications.

Dresden, 4 April 2016 Exact and reproducible high-voltage tests with partial discharge measurements on plastic-insulated cables require test systems with very low background noise level. Furthermore, the cable industry wishes the high-voltage tests to be integrated seamlessly into the production process.

To this end, HIGHVOLT Prüftechnik Dresden GmbH has developed shielded rooms that provide optimum conditions and high shielding effectiveness.

Short installation time but long service life

HIGHVOLT offers shielded cabins for both routine and type tests with test voltages of more than 700 kV as standard. The shielding effectiveness is optimized for a frequency range between 30 kHz and 1 MHz. This corresponds to the measuring range of broadband partial discharge measuring devices in accordance with the IEC standard. Where necessary, the shielded rooms are designed and manufactured in customized dimensions or else adapted to existing installations.

The walls and main steel construction of the shielded rooms are preassembled by HIGHVOLT such that they can be installed on the customer's premises both quickly and with minimum outlay. Drilling work that could otherwise damage the zinc anti-corrosion coating is not necessary. The results are extremely good shielding properties over the whole service life and a background noise level less than 1 picocoulomb. And what’s more, the measuring room is maintenance-free.

Adaptation to the conditions in the production hall

To be able to achieve a high throughput of test objects, the shielded rooms are fitted with sectional doors that can be opened and closed quickly thanks to a motor drive.
The shielded rooms, including the doors, are suitable for the use of air cushions, and the cables to be tested can thus be transported quickly and easily. Transport by way of fork lifters or rail vehicles, or else the installation of turntable facilities, are further variants for access.
Multi-stage construction of the floor ensures reliable separation between the earthing of the building and the earthing of the test bay, while at the same time providing a high mechanical load-bearing capacity.

HIGHVOLT offers everything from a single source, including test systems, measuring equipment, shielding and control system. And it can be taken for granted that consulting services, assembly, installation and commissioning are also included.

 

HIGHVOLT Prüftechnik Dresden GmbH will be presenting its latest developments in the field of measuring rooms at the "Wire" in Düsseldorf from 4 to 8 April 2016. We would be delighted to meet you at our stand A26 in hall 11.


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