Application
For all switchgear requiring very high strength insulating material, providing full isolation and safety. The enclosure is applicable to the manufacture of switchgear:
- RST – Transformer Station Switchgear,
 - SKS – HV Station Cable Cabinets,
 - SWS – WN Station Interior Cabinets,
 - ZK – Cable Connectors,
 - ZPP, ZPP-P, ZZP – Measurement sets,
 - SON – Street lighting cabinets,
 - TLP – Floor board switchboards,
 - RM – Modular Switchgear,
 - OU – Metal enclosures (OU-IP, OU-W, OU-RM, OU-SKS, OU-SIT, OU-S),
 - DU – Cover Doors.
 
Structure description
- Outdoor standing on a concrete or metal foundation;
 - Internal standing on a metal pedestal or cable pocket;
 - Surface and recessed (plug-in) designs are possible, mounted on a special structure;
 - Made of aluminum or steel sheet joined by welding and bolting;
 - The thickness of the sheet metal adapted to the dimensions of the housing;
 - Can be achieved by an insulating layer, permanently lined on the inner and outer surfaces of the housing. The thickness of the layer ensures the right degree of insulation;
 - Insulation coating with high resistance to deterioration and external factors;
 - High resistance to UV, aging, weathering and aggressive chemical agents;
 - Long-term durability of the insulation coating;
 - IP30 to IP54 degree of protection;
 - Mechanical resistance: up to IK10;
 - Connecting to the foundation with insulation screws, and a special insulation spacer;
 - Isolated attachment of all mounting components from the housing body;
 - High mechanical strength at low and high temperatures;
 - The anti-allergenicity and harmlessness of the materials used in the production and insulation of the housing;
 - Easy to clean and remove dirt, anti-stain and anti-graffiti surface;
 - Doors of solid design;
 - Open to any side horizontally in single or double leaf versions;
 - Lockable with a basquil lock with a system cylinder and an additional padlock;
 - Additional gaskets installed in the door connection space provide additional tightness;
 - Three-point locking;
 - Adaptability of solutions to the applied apparatus, with the possibility of dividing into any number of parts – such as cable and measurement;
 - Separate enclosures for individual modules;
 - Single or gable roof with ventilation maze and double ventilation;
 - Preventing the accumulation of water and moisture;
 - The bottom has an opening to allow cables to enter from the cable duct.
 
Rated parameters
| Rated switching voltage: | 230 V / 400 V | 
| Rated insulation voltage: | 500 V / 690 V | 
| Rated frequency: | 50 Hz | 
| Surge voltage withstanding: | 8 kV | 
| Rated-continuous current of the main rails: | 630A for ZK enclosures, 1250A for RST enclosures  | 
| Rated current of drain circuits: | do 630 A | 
| Rated short-term withstand current: | 20 kA | 
| Rated peak withstand current: | 40 kA | 
| Short-circuit current of the internal arc discharge: | 16 kA, 0,5 s | 
| IP: | standard 44 | 
| IK: | 10 | 
| Protection class: | II | 
| Flammability category: | V0 | 
| UV Resistance: | index 0 | 







