Explosion-proof transition cable elements are intended for the connection of flat or round electrical wires or optic cables between two enclosures of the explosion-proof equipment, usually between an Exd-enclosure and input Exe enclosure, or between two Exd enclosures. Actual range of operating temperatures is determined by the applied type of the wires or a cable. More detailed information for certain types is provided upon request. Partition nipple-barriers could be manufactured with hook-up wires (conductor), with coaxial cables (coaxial), with optic cables (optic), with flat wires, with clamping screw (bolted) as per the order.
Upon customer‘s request, stranded gas migration preventing heat-resistant hook-up wires for partition fittings with completely encapsulated internal space.
Scope of application - hazardous indoor and outdoor areas in accordance with explosion protection marking, GOST 30852.13-2002 (IEC 60079-14:1996), dangerous production facilities of I, II, III, IV hazard classes under supervision of Rostekhnadzor and national supervisory bodies of the CU and the CIS countries.
1Ex db IIC Gb
1Ex eb IIC Gb
Ex tb IIIC Db
Ex db IIC Gb U
Ex tb IIIC Db U
Ex eb IIC Gb U
РВ Ex db I Mb
РП Ex eb I Mc
Ex db I Mb U
Ex eb I Mc U
| Type of fitting | Diameter, mm | H, mm | L, mm | h, mm | AС, mm | S, mm |
| RKN-ZK | 10 | 30 | 15 | 9 | 14 | 16,5 |
| 12 | 16 | 19 | ||||
| 16 | 20 | 23,5 | ||||
| 20 | 27 | 32,2 | ||||
| 24 | 28 | 32,5 | ||||
| 25 | 30 | 34,5 | ||||
| 32 | 36 | 40 | ||||
| 33 | 36 | 42 | ||||
| 36 | 40 | 46,5 | ||||
| 38 | 42 | 48,5 | ||||
| 42 | 45 | 52 |
| RKN-ZK | - | X | X | ( | X | x | Х | ) | Х | – TU 27.33.13-031-72453807-2017 | |
| Type of the element | |||||||||||
| Diameter | |||||||||||
| Material | |||||||||||
| Number of wires | |||||||||||
| Cross-section of the wires | |||||||||||
| Length of free wire ends, dm |
EXAMPLE: RKN-ZK-10N(3x2.5)2 - TU 27.33.13-031-72453807-2017
- Through insulator with threaded connection, sealed with compound,
- connecting thread M10,
- material stainless steel,
- 3 wires with a cross-section of 2.5 mm,
- length of free wire ends 2 dm.
Non-standard nipple-barriers can be produced as per customer‘s layout