Linear Heat Detector Cable

Since 2005, Fire Alarm System And Fire Suppression System Manufacturer&Whole Solution Provider

We supply whole fire alarm and suppression system include conventional fire alarm system, addressable fire alarm system, emergency light system, FM200 gas suppression system, fire pump, fire hose reel and cabinet.

Select Language

> Select Language

Home
Products

Fire Alarm System

Fire alarm system plays an important part of the fire and life safety of building and its occupants. Fire alarm system main function is to detect a fire at a sufficiently early stage so that the people who are at risk can made safely either by escaping as fast as possible or extinguishing the fire that can also reduce or prevent the property damage. Therefore, a reliability and functionality of fire alarm system as a whole is very important.

The following are the different types of the Fire Alarm System:

1. Conventional fire alarm system
a. Conventional fire alarm system uses physical cabling to connect several detectors and call points. Conventional fire alarm system has no way to identify immediately the exact location of the fire, but can be arranged in “Zones” to easily identify the location of the cause of the alarm. Its devices are cheaper but will consume more cable wires compare to addressable, since each device will be connected to the control panel by its own cable wire. This system are mainly used specially in smaller property.

2. Addressable fire alarm system

a. Addressable fire alarm system has the same detection principle, except that each detector can be given a set address that can help to identify the exact location of the detector that initiated the alarm, that can be seen in the fire alarm control panel. Addressable fire alarm system saves a lot of wire compare to conventional system, since the devices can share one cable wires up to the last device. Both ends of the wire is loop connected to the fire alarm control panel. This system are very suitable for large and high buildings, since they are able to pinpoint exactly which devices are triggering the alarm.

3. Wireless fire alarm system

a. Wireless fire alarm system, is hassle-free to install compare to conventional and addressable since it does not use any conduit and cable wires. However, even though you saved a lot of money in material and labor cost, the hardware and programming are higher than the wired systems. The devices are battery powered and can be placed anywhere and can be easily relocate if needed.

Fire Alarm System Components
The main component of fire alarm system are the following:

1. Fire Alarm Control Panel

Fire Alarm Control Panel is the brain or central hub of a fire alarm system. It displays the location and status of the alarm devices, and it gives precise location of the device that cause the alarm.

2. Fire Alarm Initiating Devices

Fire Alarm Initiating Devices are the devices that detects signs of fire and triggers the alarm. They are connected to the fire alarm system control panel. Initiating devices includes smoke detectors, heat detectors, flame detectors, manual pull station and fire sprinkler water flow switch.

3. Fire Notification Devices
Fire Notification Devices are the audible and visual devices in fire alarm system, it includes fire alarm horn, speaker and bell. Its main function is to alert people at risk in the event of a fire, that is why it is considered as the most important components of fire alarm system.

4. Primary Power Supply
Primary power supply is typically supplied by the local utility, and also from generators that are located in remote areas wherein the electrical grid is not available.
5. Backup Power Supply
Backup power supply commonly supplied by batteries and stored internally or adjacent to main fire alarm control panel or can be also from generator. It must also provide a 24 hours of power supply to control panel in case of power shortage.

How Fire Alarm System Works?

In an event of a fire emergency, the fire alarm system main role is to detect fire and to alert people at risk inside the building and emergency response team to control the situation as fast as possible. Fire alarm system key functions is to detect (by the use of smoke detectors, heat detectors, flame detectors, etc.) , alert (by the use alarm horn, speaker, and bell), and monitor (control panel).

Fire Alarm System Maintenance
A functioning and well-maintained fire alarm devices can help reduce injuries, save lives and properties. The fire safety systems inspection, routine maintenance, and testing will help one in keeping in compliance with the local/state fire inspectors and also their insurance carrier. To keep the best condition of the fire alarm devices, it is advisable to keep a scheduled maintenance and check the following:

1. Checking of physical appearance of the fire alarm devices

2. Smoke Detectors should be cleaned & tested for sensitivity levels (addressable type)

3. Fire alarm control panel should be tested for all alarm, trouble, supervisory, reset & silence function

4. Checking of the devices power supply

5. Checking/ replacement of batteries

6. Checking/ removal of any obstruction on the devices that may cause false alarm or malfunctioning

7. Checking if the alarm is audible

8. Devices must be replaced when exceeded 10 years from the manufactured date

Emergency system

ASENWARE Centralized Monitoring Emergency Luminaire System is designed for managing, monitoring and controlling emergency lights automatically.

Fire Suppression System

ASENWARE Fire Pump Series provide fire departments or private users with the ability to pump from any water source.

Fire Fighting System

At ASENWARE, you can choose the best quality of fire fighting equipment like extinguisher, hose reels, fire monitors, nozzles and hose pipes.
Project
Newsroom
About Us

Contact us

Factory

Technical RFQ
Contact
Technical FAQ

Linear Heat Detection System

Home > Products > Linear Heat Detection System

Linear Heat Detector Cable

Linear heat detector cable (LHDC) is a device in which detection is continuous along a path. It is designed to provide an early detection of fire and overheating in situations where other forms of det...

INQUIRY

What Is Linear Heat Detector Cable?
Linear heat detector cable (LHDC) is a device in which detection is continuous along a path. It is designed to provide an early detection of fire and overheating in situations where other forms of detection would not be practical. The linear heat detector cable is capable of sensing heat anywhere along its length, initiating an alarm once its fixed activation temperature has been reached. When the ambient temperature meets or exceeds the detector peaks temperature the heat-sensitive insulation that is softens allows the wires to make electrical contact, initiating an electrical short triggering an alarm.

Composition Of Linear Heat Detector Cable

1.Steel Conductors – composed of (a) steel, to provide tensile strength, (b) copper, to increase conductivity, and (c) tin, to resists corrosion

2.Protective Tape – advanced insulation provides temperature specific activation, it softens on certain temperature

3.Outer Jacket – comes with 4 jacket types for various

How To Wire The Linear Heat Cable To Conventional Fire Alarm System And Linear Heat Cable Testing?

How To Wire The Linear Heat Cable To The Addressable Fire Alarm System(FP100)?

How To Wire Linear Heat Cable To Input Output Module Of An Addressable Fire Alarm System（FP300）?

applications and environments.

a.EPC & CTI (Polyvinyl Chloride) – ideal for general, multi-purpose applications

b.Type XCR & CTI (Fluoropolymer) – ideal for extreme environments and includes excellent resistance to chemicals and UV.

c.Type XLT (Proprietary Polymer) – ideal for low temperature such as cold storage
d.Type PLR (Polypropylene Elastomer) – ideal for outdoor applications
Advantages Of Linear Heat Detector Cable
- Detects heat at any point along its length
- Minimal false alarms
- Easy installation and low maintenance
- Can be installed near to hazards
- Can be use in extreme conditions and can resist corrosion, hemicals, moisture and extreme temperatures
- Long life span
The detector can be used with any domestic and foreign manufacturers of fire alarmcontroller connection glance at automatic fire detection system, which can effectively protect the following objects:
1.Cable facilities: cable tunnel, shaft, mezzanine,cable tray, etc:

2.Electric utilities: distribution equipment, switchgear, transformers and reactors;

3.Oil, gas, hydraulic, lubricating oil storage, oil tank, gas tank, oil boilers, gas boilers, fuel injection(baked) booth:

4.Belt transmission facilities, coal delivery, transport belts and automated production lines.

Design Parameters

On smooth ceilings installation, the distance between parallel detector runs shall not exceed the maximum listed spacing there, shall be a detector run within a distance of ½ listed spacing measured at a right angle from all walls or partitions that extend to within top 15% of the ceiling height.

On solid joist ceiling installations, with open joists or other similar structures heat travels freely down the joists channel, however heat has trouble spreading across the joists, so the distance in this direction must be reduced the linear heat cable detector shall be mounted on the bottom of the joists and the spacing of the detector on all runs measure at right angles parallel to the joists shall not exceed 50% of the smooth ceiling spacing, on runs the parallel both joists and wall the spacing shall not exceed 25%

On solid beam ceiling installations, in the case of beam construction, where the beams are 4” or less in the depth, the ceiling shall be treated the same as a smooth ceiling. If the beams project more than 4” below the ceiling, the spacing at right angles to the direction of beam travel shall not exceed 2/3 of the smooth ceiling spacing.

Parameters:

1.Complied with GB16280-2014 standard。

2.Temperature alert actions：85℃

3.100mm small size fire alarm functions

4.Detector type: unrecoverable cable line-type fixed temperature fire detector;

5.Working voltage: 24V±15％

6.Monitors current:＜100mA

7.Power supply overload protection current: 200mA

8.Applicable temperature range: -40℃ ~ +50℃ （D）

9.Relative humidity:≤95% ， without condensation

10.Status indicator: Normal operation---green light flashing

Alarm status---red light on

Fault status---yellow light on

11.Crust protection grade: IP66

Testing Linear Heat Detectors Cable

1.Fixed-temperature, rate-of-rise, rate-of-compensation, restorable line, spot type (excluding pneumatic tube type)

oHeat test shall be performed with a heat source per the manufacturer’s published instructions for the installed equipment, or other method shall be used that will not damage the non-restorable fixed temperature element of a combination rate-of-rise or fixed-temperature element detector.

2.Fixed-temperature, non-restorable line type (Protectowire)

oHeat test shall not be performed. Functionality shall be tested mechanically and electrically. Loop resistance shall be measured and recorded. Changes from acceptance test shall be investigated.