N2XH
- N2XH is a power cable with copper conductors, cross-linked polyethylene (XLPE) insulation and a halogen-free sheath. It is flame-retardant when laid in a group and does not emit corrosive gaseous products during combustion and smoldering.
- They are used for continuous transmission of electricity and its distribution in stationary installations at a voltage of 1 kV and a frequency of 50 Hz.
- N2XH is designed for stationary installation in crowded places, educational and medical institutions, office buildings, shopping centers, as well as industrial facilities with high fire safety requirements.
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Multi-conductor cable: 7.5 x outer diameter
operation: from -50°С to +50°С
| Conductors: copper single-wire or multi-wire of the 1st or 2d flexibility class (class 1, 2 DSTU EN 60228) |
| Insulation: cross-linked polyethylene, the sheath of PvPG is made of light-stabilized polyethylene; the sheath of PvPGng-HF is made of halogen-free polymer composition |
| Armor: no |
| Number of conductors | Nominal cross-section area of the key conductors, mm2 |
|---|---|
| 1 | 1,5 — 1000 |
| 2, 3, 4 | 1,5 — 300 |
| 5 | 1,5 — 240 |
N2XH is power cables with copper conductors, XLPE insulation, and halogen-free sheath.
They are used for continuous transmission of electricity and its distribution in stationary installations at a voltage of 1 kV and a frequency of 50 Hz.
Applicability scope
The use of polyethylene in the production of this type of cables has made them more flexible and lightweight, convenient for installation on complex multi-level routes. It has provided great operational reliability and transfer capacity. It also made it possible to lay in the areas with a large height difference, including vertical and inclined ones, and also provided a smaller diameter and bend radius.
N2XH cables refer to the group of halogen-free copper cables. They do not spread combustion in case of group laying and do not emit corrosive gaseous products during combustion and smoldering. Due to these properties, they are used in places with increased requirements for fire safety, such as educational and medical institutions, metro buildings, office premises with a large number of various equipment, shopping centers, residential and public buildings, industrial facilities and for organizing emergency power supply at facilities with an increased fire and explosion hazard.
Design
The cables are designed using a round or sector single-wire or multi-wire copper conductor (class 1, 2 DSTU EN 60228). The conductors insulation is made of cross-linked polyethylene (XLPE). The PvPG sheath is made of light-stabilized polyethylene, and N2XH sheath is made of a halogen-free polymer composition, which practically does not emit smoke, carbon monoxide and other harmful compounds when ignited. More detailed information about the design features of cables and their technical characteristics you can obtained from the specialists of EUROPAN LLC.
Operation
The insulation made of cross-linked polyethylene (XLPE) has high thermal stability at short-circuit currents, due to which N2XH can withstand extreme temperatures up to 250°C. In an emergency mode, cables can operate at temperatures up to 130°C, retaining their shape, electrical and mechanical characteristics. The long-term permissible conductor heating temperature during operation is 90°C.
The normal operation of the cable is carried out at temperatures from -50°C to +50°C. And the installation without additional preheating is allowed at a temperature not lower than -15°C. The maximum permissible air humidity is 98% at a temperature of +35°C.
The minimum bend radius for single-cornductor cables is 10 outer cable diameters and for multi-conductors cables is 7.5 ones.
The service life of the cables is 30 years. The guaranteed service life is 5 years.
On the website of EUROPAN LLC, you can select and buy high-quality certified copper or aluminum cables with delivery directly to the installation site in any region of Ukraine at the most favorable prices. As a direct manufacturer, we have been successfully supplying our customers with reliable, durable and safe products for many years, as well as offering low prices. Our managers will help you to gain insight on the variety of label sizes, and features of the product, and will answer all your questions.
Permissible short circuit currents of cables
|
Nominal conductor cross-section, mm² |
Permissible current of one-second short circuit of cables, kA |
Nominal conductor cross-section, mm² |
Permissible current of one-second short circuit of cables, kA |
| 1,5 | 0,21 | 120 | 16,43 |
| 2,5 | 0,34 | 150 | 20,26 |
| 4,0 | 0,54 | 185 | 25,35 |
| 6,0 | 0,81 | 200 | 33,32 |
| 10 | 1,36 | 300 | 41,64 |
| 16 | 2,16 | 400 | 55,20 |
| 25 | 3,46 | 500 | 69,00 |
| 35 | 4,80 | 625 | 86,95 |
| 50 | 6,50 | 800 | 110,40 |
| 70 | 9,38 | 1000 | 138,00 |
| 95 | 13,03 |
