EXPLOSION-PROOF CONNECTING DEVICES OF УСВН(В) TYPE

Category: Equipment for the petrochemical industry

Explosion-proof connecting devices of the УСВ-Н (В) type (hereinafter “devices”) are used for connecting cables with copper and aluminum conductors in DC and AC power circuits with a voltage of 660 V; 1.14 kV and 6.6 kV, and operating in potentially hazardous environments: chemical, oil and gas industry, as well as coal and shale mines, hazardous gas (methane) and coal dust. Devices correspond to the requirements of the Technical Regulations for protective equipment and systems, intended for use in potentially explosive environments (TR 1055).

The devices have an explosion protection type – “protection type “e ” according to
DSTU EN 60079-0: 2017, DSTU EN 60079-7: 2017 with explosion protection mark
II 2G Ex eb IIC T5 Gb or II 3G Ex eb IIC T5 Gb (for devices with current transformer) or
I M2 Ex eb I Mb for group I.

FUNCTIONS

Devices, according to the Enclosure size and rated current, provide:

  • connection of cables with copper and aluminum conductors in power circuits of direct and alternating current voltage of 660 V; 1.14 kV and 6.6 kV;
  • transmission of the current signal from the built-in current transformer (optional) to process control devices.
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