RIS-U – SELF-EXTINGUISHING CORRUGATED CONDUIT FOR ELECTRICAL INSTALLATION
Mechanical strength: 750N (medium) 3
Impact resistance: 2,0 kg/100mm (medium) 3
Temperature range (application, installation):
from -25°C to +110°C 4 3
Flexibility: pliable 2
Flammability: self-extinguishing
Material: polypropylene mod. (PP-mod)
EU Designation (EN 61386-1): 33432
Application:
Conduit designed for cable protection in building and industrial applications. Ideal for use in locations where there is an increased risk of fire hazard. It is particularly suited to internal installations including cavity walls, ceilings and under raised floors. It can also be buried under concrete.
Considering high flexibility, which is achieved through a proper transverse section, the pipe can be used in not easily accessible places. Conduit allows easy replacement of conductors in electrical installation.
Characteristics of material:
Self-extinguishing/flame retardant material, medium tensile strength, medium rigidity, high impact strength, high thermal resistance, resistant to most of chemical compounds, good dielectric properties within a wide temperature range even in a wet environment, high water absorption resistance, inconsiderable deformability.
Standard diameters
| Nominal diameter DN (mm) | Inside diameter (mm) | Outside diameter (mm) | Coil length (m) |
|---|---|---|---|
| 7 | 4,5 | 7 | 100, 200 |
| 10 | 7 | 10 | 50, 100 |
| 14 | 9 | 14 | 25, 50, 100 |
| 15 | 11 | 15 | 25, 50, 100 |
| 16* | 10,5 | 16 | 25, 50, 100 |
| 18 | 13 | 18 | 25, 50, 100 |
| 20* | 15 | 20 | 25, 50, 100 |
| 21 | 16 | 21 | 25, 50, 100 |
| 22 | 18 | 22 | 25, 50, 100 |
| 25* | 19 | 25 | 25, 50 |
| 28 | 23 | 28 | 25, 50 |
| 32* | 26 | 32 | 25, 50 |
| 36 | 29 | 36 | 25, 50 |
| 39 | 32 | 39 | 25 |
| 40* | 33 | 40 | 25 |
| 43 | 36 | 43 | 25 |
| 47 | 40 | 47 | 25 |
| 50* | 43 | 50 | 25 |
| 52 | 44 | 52 | 25 |
| 54 | 47 | 54 | 25 |
| 63* | 54 | 63 | 25 |
| * PN-EN 60423 diameters | |||
Resistance to selected chemical compounds
| Acids | weak | high |
| strong | high | |
| oxidized | lack | |
| hydrofluoric | medium | |
| Bases | dry halogens | medium |
| weak | high | |
| strong | high | |
| Solvents | alcohols | high |
| esters | medium | |
| ketones | medium | |
| ethers | medium | |
| chlorinated hydrocarbons | medium | |
| Oil and diesel materials | benzene | medium |
| petrol | medium | |
| diesel mixtures | medium | |
| mineral oils | high | |
| fatty oils | high |
Places of Applications
| Wall installations | admissible |
| Sunk installations | recommended |
| Outer wall installations | not allowed |
| Plaster walls | recommended |
| Combustible surfaces (wood, etc.) | recommended |
| Underground installations | recommended |
| Poured concrete, vibrated concrete | recommended |
| Steamed and vibrated concrete | recommended |
| Electrotechnical equipment, industrial apparatus | recommended |
| Control and automatics | admissible |
| Food and chemical industry facilities | recommended |
| Automotive industry | recommended |
| Shipyard industry | recommended |
| Aircraft industry | recommended |
