When starting a project in public spaces it is recommended to "plan for the worst…
TOXFREE® PLUS RZ1-K (AS+), the fire-resistant cable for emergency circuits
TOXFREE® PLUS RZ1-K (AS+) 0.6/1kV is a power cable specially designed to transmit electrical energy in the extreme conditions that occur in a prolonged fire, ensuring the supply to emergency equipment such as signalling, smoke extractors, acoustic alarms, water pumps, etc.
DESIGN:
1 – Flexible copper conductor (class 5).
2 – Mica tape + flexible cross-linked polyethylene (XLPE) insulation.
3 – Flexible halogen-free flame-retardant polyolefin outer sheath, with low emission of smoke and corrosive gases in case of fire.
A HIGH-SAFETY (AS+) FIRE-RESISTANT CABLE
In addition to the properties of a TOXFREE® High Safety (AS) cable: no fire propagation and no fire propagation, TOXFREE® PLUS RZ1-K (AS+) 0.6/1kV fire resistant cables must comply with a structure that allows the electrical circuits that are essential for safeguarding people’s lives to remain operative at all times, facilitating their evacuation.
TOXFREE® PLUS RZ1-K (AS+) 0.6/1kV fire resistant cables maintain power supply even under the extreme conditions of prolonged fire in direct contact with fire. In this way they maintain the integrity of the electrical circuits, guaranteeing the operation of emergency equipment (alarms, smoke extractors or forced ventilation, emergency signalling and lighting, water pumps, inert network, automatic opening of doors, video surveillance cameras, etc.).
TECHNICAL CHARACTERISTICS OF TOXFREE® PLUS RZ1-K (AS+)
The main feature of the cable is its ability to provide maximum safety in case of fire. On the more technical side, these are the main features provided by its design:
Flame and fire non-propagation
Flexible cable
Halogen free
Minimum service temperature: -40ºC
TECHNICAL ADVANTAGES OF A FIRE RESISTANT CABLE (AS+)
In this table you can see a comparative overview of the differences between a PVC cable, an LSZH cable and an AS+ cable:
| Application | PVC cables | LSZH cables (AS) | Fire-resistant cables (AS+) |
| High-Security Cables | Industrial | Public attendance (hospitals, schools, airports, shopping centres) | Emergency equipment (smoke extractors, acoustic alarms, water pumps) |
| CPR classification | Eca | Cca, B2ca | B2ca |
| High Security Cables | No | (AS) | (AS+) |
| Smoke emission (*) | High | Low | Low |
| Fire propagation (*) | Yes | No | No |
| Emits toxic / corrosive substances (*) | Yes | No | No |
| Transmits electrical energy during a prolonged fire | No | No | Yes |
| Cover colours (1000V) | Black | Green | Orange |
| Designation | “V” | Z1 | Z1 (AS+) |
| Reference cables | POWERFLEX® RV-K | TOXFREE® RZ1-K (AS) | TOXFREE® PLUS RZ1-K (AS+) |
INSTALLATIONS WHERE THE USE OF TOXFREE® PLUS RZ1-K (AS+) CABLE IS RECOMMENDED
Manufactured by Top Cable, it is especially recommended for emergency circuits in public places such as hospitals, airports, tunnels, undergrounds, data centres, offices, production plants, laboratories, etc.
- Industrial use.
- Public premises.
- Emergency circuits.
- Data Centres (DC) and other critical installations.
It can be installed in the open air, in conduits and/or buried in indoor and outdoor installations, both in single and multi-conductor versions.
WHERE TO BUY ORANGE FIRE-RESISTANT CABLES TOXFREE® PLUS RZ1-K (AS+)?
To buy TOXFREE® PLUS RZ1-K (AS+) fire-resistant cable on drums of various sizes, please see our sales conditions for Electrical Wholesalers and Distributors here. We can also connect you with your nearest Top Cable distributor.
Some of the most common cross-sections in immediate stock are as follows:
| Cable | Conductor cross-section (mm2) | Outer sheath colour |
| TOXFREE® PLUS RZ1-K (AS+) | 1 x 2,5 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 1 x 4 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 1 x 6 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 3G 1,5 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 3G 2,5 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 3G 4 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 4G 1,5 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 4G 2,5 | Orange |
| TOXFREE® PLUS RZ1-K (AS+) | 4G4 | Orange |
If you need to consult additional technical aspects of this cable, such as its maximum admissible current or voltage drop, please contact us.
TOXFREE® RZ1-K (AS+)
LSZH and fire-resistant cable
FREQUENTLY ASKED QUESTIONS (FAQ) ABOUT THE TOXFREE® PLUS RZ1-K (AS+) CABLE
What does RZ1-K (AS+) on a power cable mean?
Each cable has a standardised designation. The letters and numbers refer to the cable outer sheath, other cable layers, the conductor flexibility or class, its rated voltage and the final cable composition. In the case of RZ1-K (AS+), the letters stand for:
Insulation:
R : Cross-linked polyethylene (XLPE).
Outer sheath:
Z1: Halogen-free thermoplastic polyolefin.
Conductor:
-K : Flexible copper (class 5) for fixed installations.
(AS+) : High-Security fire-resistant cable.
0,6/1 kV: Rated voltage 1.000 Volt
Here, you can find more information about the designation of electrical cables.
What is the difference between RV-K and RZ1-K cables?
Although both cables have the same flexible conductor (-K : Flexible copper class 5 for fixed installations) and insulation (R : Cross-linked polyethylene XLPE), the outer sheath varies: RV-K cable has a PVC (Polyvinyl Chloride) outer sheath (V), while the outer sheath of RZ1-K cable is made of halogen-free thermoplastic polyolefin (Z1).
What are the fire characteristics of TOXFREE® PLUS cable?
Flame non-propagation according to UNE-EN 60332-1 / IEC 60332-1.
Fire non-propagation according to UNE-EN 60332-3 / IEC 60332-3 and EN 50399.
Fire resistant (PH120) minimum 120 minutes at 840 °C.
According to IEC 60331-2 / EN 50200 for cable diameter ≤ 20 mm.
According to IEC 60331-1 / EN 50362 for cable diameter > 20 mm.
Fire resistance category C (180 minutes at 950°C), W & Z according to BS6387.
CPR reaction to fire: B2ca-s1a,d1,a1 or Cca-s1b,d1,a1 according to EN 50575.
Halogen-free according to UNE-EN 60754-1 / IEC 60754.
Low emission of corrosive gases UNE-EN 60754-2 / IEC 60754-2.
Low smoke emission according to UNE-EN 61034 / IEC 61034.
Light transmittance > 60%.
For more information on the fire tests to which electrical cables are subjected, see this video from the Top Cable channel on YouTube.
What other properties does TOXFREE® PLUS RZ1-K (AS+) cable have?
TOXFREE® PLUS RZ1-K (AS+), manufactured by Top Cable, has excellent performance:
Maximum electrical performance at maximum and minimum temperatures, to impacts, to chemical attacks.
It is a flexible cable that is especially suitable for complex and difficult industrial installations.
The UV-resistant outer sheath gives the TOXFREE® PLUS RZ1-K (AS+) cable excellent weather resistance, allowing it to be installed outdoors.
These properties ensure a longer service life for the electrical installation.
Where can I find the TOXFREE® PLUS RZ1-K (AS+) cable technical specification in PDF format?
Here is the PDF of the summary technical specification of the TOXFREE® PLUS RZ1-K (AS+) cable. If you need to consult additional technical aspects of this cable, such as its maximum admissible current or voltage drop, please contact us.
What is the price of TOXFREE® PLUS RZ1-K (AS+) halogen-free cable?
What does CPR B2ca s1a,d1,a1 or Cca s1b,d1 a1 mean? How does the Construction Products Regulation (CPR) affect a cable?
Here you can find more information about the European Standard Construction Products Regulation (CPR) and its classification system for fire performance of electrical cables.
The CPR classification of TOP CABLE TOXFREE® PLUS RZ1-K (AS+) cable is B2ca-s1a,d1,a1 /Cca-s1b,d1,a1. In most European countries, the installation of minimum class Cca-s1b,d1,a1 cables is compulsory in public places such as: hospitals, schools, museums, airports, bus stations and shops in general.
