Nexans' answers

Nexans lösningar för larm och säkerhet

You often won't know whether you chose the right cable until after a fire

People always talk about fire protection but it is important to know what this actually means in practical terms, and to be certain which flame spread rating you need to use. For cables, you also need to distinguish between flame spread, fire hazard properties and fire resistance.

Cables running through building levels and walls are a great way for fires to spread. So the most important requirement when establishing fire protection is to use cables with properties that prevent the spread of fire. This is why there are general flame spread classes, and these must always be defined. Our cables have clearly marked flame spread classes that are informative and easy to understand.

Save lives and money

Smoke and gases from burning cables often cause the biggest problems for people and machinery. These problems can be reduced if halogen free cables are used. The smoke from halogen free cables during a fire is much thinner and does not corrode metals. This makes it easier to clear smoke from rooms, potentially saving lives. Our cables for alarms and safety systems are halogen free.

The most critical cables must also be fire resistant. This means they must be guaranteed to work even during a fire. This is made possible by special insulation material, which is merely altered rather than destroyed by fire. The cable keeps its shape, the conductors are kept separate and the cable continues to work. These cables are needed for the fire alarm system itself, but also for the safety lighting guiding people out of the building, for the smoke extraction fans and for the lifts. Our range includes fire resistant cables for power supply and for communication.

CCTV - trends and needs

CCTVAlthough the securities industry had a major growth in recent years, and several companies have grown so strong, most companies are relatively low profitability. This means that they must review their operations and invest in technology that will allow them to streamline their operations. An example of this is that security firms increasingly replace manual monitoring with advanced video surveillance. This involves moving from the analog systems and replacing them with IP-based network cameras. From the point of cable coaxial cable and power supply cable are replaced by one (1) network cable (LAN cable).

Nexans offers however, for analog systems, a unique combination cable containing both coax and power supply conductors. IP-based systems also means that camera systems can be integrated with various other alarm systems and you can communicate with the system from your smartphone.

Access control systems

Access control systemAn access control system is basically an extension of a locking system. The system's task is primarily to identify a code, approve or disapprove it and controlling the equipment that regulates the passage, which is usually a motor lock.

An access control system generally consists of three parts, card reader, door controllers and programming / recording device. Communication and power between and of the various units is done using signaling cables of various kinds. The systems can also be integrated into the network (LAN).

When selecting the cable it should be considered that the different functions require different cable. The Power supply cable should have a relatively big cross-section area to minimize voltage drop while the cable for communication should be pair- twisted to minimize the risk of interference. By choosing the so-called "cluster" cable, you get two functions in one cable as this type of cable contains both optimized cores for power supply and one or two twisted pairs for communication (RS 485).