Install solar-powered wireless photoelectric beams detectror

Instruction of alarm system installation from Professional alarm security technology vedard security. alarm system supplier and technology supporter.

Explosion proof gas detector troubleshooting

Shop professional fire alarm system gas detector explosion proof industry security equipment.

What is automatic fire alarm system

 Automatic fire alarm system is the main part of fire control system.

Automatic fire alarm system includes fire early warning system, fire detection alarm and linkage control system.

The linkage control system includes fire hydrant button, fire alarm, various input and output modules, fire appliance control device, fire broadcasting system, fire telephone system, graphic display device, emergency lighting, evacuation indicating system, etc.

Fire early warning system is an independent subsystem of automatic fire alarm system. It mainly includes combustible gas detection and alarm system and electrical fire monitoring system.

Combustible gas detection and alarm system is mainly used in the use, production of combustible gas or combustible steam places.

When the concentration of combustible gas in the protected area reaches the set

value, the alarm is set.

The purpose of electrical fire monitoring system is to eliminate the fire hazard of electrical equipment.

When the residual current value of the detected power line or the temperature rise of the detected electrical components exceeds the safety value, an alarm will occur to prevent leakage, short circuit, overload and other situations.

The purpose of a fire warning system is to eliminate fire hazards.

When a fire occurs, the fire detection and alarm system and fire alarm linkage control system are required to operate.

Fire detection alarm and linkage control system is automatic fire fighting facilities, it carries out fire detection alarm, sends out control signals to all kinds of fire fighting equipment and receives feedback signals from the equipment, so as to achieve predetermined fire fighting function.

The fire detection alarm and linkage control system as shown in the figure is composed of fire detection alarm system and fire linkage control system.

In practical application, fire alarm controller and fire linkage controller are integrated products, which are called connected fire alarm controller.

Fire alarm linkage control system mainly includes fire detector, manual fire alarm button, fire hydrant button, fire alarm, various input and output modules, fire electrical control device, fire broadcasting system, fire telephone system, graphic display device.

Fire detector is a device that can respond to fire parameters and automatically generate fire alarm signal.

We often have smoke detector, temperature detectors, photosensitive fire detectors, carbon monoxide fire detectors, picture-type fire detectors and so on.

Manual fire alarm button is a device that generates fire alarm signal manually.

The fire hydrant button is a manual alarm button set with the fire hydrant.

The automatic fire alarm system shall be equipped with fire audible and visual alarms, and all fire audible and visual alarms in the building shall be activated after the fire is confirmed.

The input module is used to receive the action status of the monitored device, and can wire the normally open or normally closed signals of the monitored device, such as water flow indicator and pressure switch.

The output module is used to control the start, stop or switch of some devices. It is generally used to control devices without signal feedback, such as audible and visual alarms and alarm bells.

Input output module:

Compared with the output module, the input and output module is equipped with signal feedback function. After starting the device, the input and output module can receive the feedback signal from the device. It is mainly used to control the equipment with signal feedback, such as smoke exhaust valve, air supply valve, fire valve, etc.

In the linkage control of fire alarm, automatic sprinkler system, hydrant system, foam extinguishing system, gas extinguishing system, smoke prevention and exhaust system, fire rolling curtain system, fire extinguishing system can be realized through all kinds of detectors, alarm buttons and modules.

Emergency lighting and evacuation indicating system, fire emergency broadcasting system and other fire facilities linkage control. With the multi-line linkage control panel, the linkage control of fire pump, smoke control and smoke exhaust fan and other starting cabinets can also be realized.

For some relatively complex control logic of the gas fire extinguishing system, fire door monitoring system, fire shutter system, emergency lighting and evacuation indication system, fire emergency broadcast system, fire telephone system, will also set up a separate control host to implement a specific function.

The gas fire extinguishing system is mainly used to protect some special important parts and computer equipment.

Fire door, fire window, fire shutter is used for building doors and Windows at the opening of the fire separation facilities.

Fire emergency lighting and evacuation indicating system refers to the system that provides lighting and evacuation indicating for personnel evacuation and fire fighting operations.

Fire emergency broadcasting system is an important equipment for fire evacuation and fire fighting command, which can effectively guide the evacuation of all parts of the building.

Fire telephone is a special equipment for fire communication, which can provide convenient and fast means of communication when fire occurs.

The graphic display device is installed in the fire control center, which can access the alarm information and fault information of the electrical fire monitor, fire door monitor, fire equipment power monitor, combustible gas detection alarm controller

Simulate the building plane layout of fire trigger device and linkage device on site, which can truthfully reflect the fire, linkage and fault situation on site.

The power monitoring system of fire fighting equipment monitors the power supply of fire fighting equipment in real time, and detects the working status of the power supply, such as current and voltage.

When the power supply over-voltage, under-voltage, over-current, lack of phase circuit fault, it sends out an alarm signal.

The power monitoring system of fire fighting equipment is mainly used to monitor the working state of the power supply of fire fighting equipment, and has no direct correlation with the automatic fire alarm system.

Prevention of fire and carbon monoxide poisoning

 Winter is the peak season for fires. Due to the dry winter climate, cold weather and increased use of fire and electricity, resulting in increased fire. In addition, closed doors and Windows in winter allow fires to produce toxic carbon monoxide and other gases quickly gathered, resulting in instant casualties.

Therefore, it is especially important to prevent fire and carbon monoxide poisoning in winter.
1.When using coal stove for heating and cooking, open the window for ventilation or open the exhaust fan for ventilation.
2.In snowy days or rainy days, when the air pressure is relatively low, do not burn coal stoves for heating as far as possible to prevent poor smoke exhaust and cause carbon monoxide poisoning.
3.When using the heater oven heating, to avoid short circuit, overload and other circumstances, resulting in electrical fire.
4.The most important thing is to install gas leak and carbon monoxide alarms as well as smoke alarms.
Carbon monoxide is colorless and odorless, so people can’t notice it but has been poisoned and even killed. Carbon monoxide poisoning can take only a few minutes. Fire escape time is only 3-5 minutes. So without carbon monoxide alarms and smoke alarms, people can’t be warned to evacuate in advance.

Various carbon monoxide alarms are now available on the market. There are combustible gas and carbon monoxide detector, carbon monoxide and smoke detector and separate carbon monoxide detector, combustible gas detector and smoke detector. There are ac powered carbon monoxide detectors and battery powered carbon monoxide detectors. Carbon monoxide detectors must be installed in kitchens, garages, cars, and living rooms where coal stoves are used.
The carbon monoxide detector is easy to install and does not need debugging. It can be directly connected to the power supply or directly fixed in the installation position specified by the guide with screws. When the carbon monoxide concentration in the detection area is higher than the alarm value, the carbon monoxide detector will give an audible and visual alarm. If a carbon monoxide detector is connected to a home alarm, carbon monoxide alerts can be sent to a mobile phone via a phone, app, etc.
Now the social environment is complex, people’s life is also facing a variety of dangers. Therefore, learn to protect themselves to learn to install and use safety protection system. Gas LPG can be used for cooking and heating, but it is also very risky. In addition to proper use, it is necessary to install gas alarms, carbon monoxide alarms, and smoke alarms.
There are guidance and more information of fire alarm, gas detector, gas with solenoid control CO alarm, smoke alarm at Vedard alarm security support. You can post question there or contact us for help or consultant.

Don’t forget home security on Christmas and New Year

The sudden arrival of the Novel Corona virus has made all the difference in those two years. Many people have died and many people have had a difficult life as a result. Perhaps in order to live, there are also many people who steal and rob and cause more families to suffer. Especially around Christmas and New Year’s, this kind of thing is more likely to happen.
All we can do is take precautions. Security system is the most reliable and effective security tools at present. Many homes have surveillance cameras installed. But surveillance cameras can only be used as evidence of a crime after intrusion. It can’t warn or stop burglars before they enter. The best protection areas are the aisles, driveways, yards, doors and Windows where burglars can get inside. Therefore, installing burglar detectors in these areas can alert people when thieves enter these areas. So people can be vigilant and take good protection to avoid getting hurt.

The solar-powered wireless infrared beam and PIR detector is specially designed to be installed in walkways, driveways, yards, doors and Windows for outdoor intrusion detection alarms. When someone enters the protected area set by it, the solar wireless beam will sound and send an alarm signal to the indoor receiving host. People are also alerted indoors by sound and light alarms, and thieves often leave when they know their intrusion is known.
Solar wireless alarms come in a variety of forms and can be applied to walls, fences, balconies, windows and driveways. There is no need for drilling and wiring, no need for professional electricians, people can easily install by themselves according to the instructions and videos.

Now it is the most difficult time for humans to combat the Novel Corona virus. The WHO expert Group meeting agreed that “there is also a need to rely on the widespread implementation of public health restrictions, combined with the completion of vaccine scale-up.” WHO delegates have declared that the world has the ability and confidence to control the COVID-19 epidemic by 2022 and gradually return to normal life. Hard times will pass. People should be equal and help each other to usher in better times.

1 Loop Addressable Fire Alarm Control Panel ETL approval control panel [FW6000] - $439.00

DESCRIPTION

FW6000 Intelligent Fire Alarm Control Panel (FACP) is the new-generation fire alarm control unit designed for application in small and medium projects. It is wall-mounted type and has the advantages of powerful function, high reliability and flexible configuration. The panel is equipped with a LCD monitor to display all the information on fire alarms, faults and various operations, which can be printed out by the built-in printer. FW6000 is a one-loop control panel with maximum 240 points, which can work together with all FW 3 series field devices.
Features:
1. This FACP uses two-wire bus system to control up to 240 addressable devices.
2. Wall mount design makes it easy to use and operate.
3. The FACP is composed of a main control module, a driver board and a communication board.
4. This FACP is compatible with the complete range of the FW series fire alarm devices like intelligent detectors, manual call point, input module, I/O module etc.
5. This FACP adopts windows-based operation menus, which are convenient and easily understood.
6. All the system functions can be realized just by simple operation to select the corresponding numbers or move the cursor.
7. The fire alarm sent out by this FACP is not only visible & audible, it can also be displayed on the LCD screen and be printed out by the built-in printer simultaneously, meanwhile, it can be recorded in the history log as well.
Specification:
1. Primary AC Power supply: 220VAC 50/60Hz
2. Main supply output voltage (VDC): 27VDC & 32VDC
3. Mainy supply output current: 2.5A at 27VDC and 3A at 32VDC
4. Minimum battery size: 2*12V required 4Ah
5. Battery charging voltage (VDC): 27VDC
6. Battery charging current: 700mA
7. COM-SG connector voltage output: 1Amp @ 24VDC
8. DC24V connector voltage output: 1Amp @ 24VDC
9. COM-SG End of Line resistor (Ohms): 10K
10. COM-HJ contacts capacity: 2Amp @ 24VDC
11. COM-HJ End of Line Resistor (Ohms):10K
12. Computer Interface: USB
13. Display: Graphical LCD 128*64
14. Operating Humidity Range: 10% to 93% relative humidity, Non-condensing.
15. Operating Temperature Range: -10C to 50C
16. FACP Dimension (L*W*D): 330mm*120mm*400mm
17. FACP Neight weight: 7.8kg

https://vedard.com/blog/how-to-set-up-fire-security-system/

 

How to set up fire security system

December 24, 2020

 

 |  No Comments

Part 1 Laying Pipeline
1. Common pipeline material Electric tube pipe contains galvanized steel pipe, welded steel pipe, JDG steel pipe, KBG steel pipe and so on.

2. Wiring types the meaning of the various symbols labeld on common wire and cables
NH——Refractory,pass GB12666.6 refractory test;
ZR——Flame retardant,pass GB12666.5 bundle burning test
ZA/ZB/ZC——Flame retardant Class A / Class B / Class C
WD——Low smoke and halogen free
YJ——Cross – linked polyethylene insulation
V——PVC sheathed
S——Twisted pair
B——Single stranded hard line
R—-Single stranded soft line
K——Control Cable
P——With shield
For example: WDZA-KYJY-7*1.5——Low smoke halogen free flame retardant A grade XLPE double jacket 7 core 1.5mm2 control cable.
Common used wiring types: At least flame retardant wire and cable should be used for weak-current line and fire-resistant cable should be used for the power supply line of the fire alarm system.
alarm circuit——ZR-RVS-2*1.5, NH-RVS-2*1.5, NH-RYJS-2*1.5 etc.
alarm circuit trunk——ZR-RVS-2*2.5, NH-RVS-2*2.5, NH-RYJS-2*2.5
24VDC power line——ZR-BV-2*2.5, NH-BV-2*2.5， NH-BYJ-2*2.5 etc.
24VDC power line trunk——ZR-BV-2*4.0, NH-BV-2*4.0, NH-BYJ-2*4.0
multi-line control circuit——ZR-KVV-N*1.5, NH-KVV-N*1.5 etc.
broadcast line——ZR-RV-2*1.5, ZR-BV-2*1.5, ZR-RVVP-4*1.5
telephone line——ZR-RVS-2*1.5, ZR-RVVP-2*1.5, NH-RVVP-2*1.5 open
pump line——ZR-BV-2*1.5, ZR-RV-2*1.5, NH-BYJ-2*1.5 etc.
fire hydrant open pump feedback line——ZR-RV-4*1.5, NH-BYJ-4*1.5, ZR-KVV-2*1.5
network line——ZR-RVS-2*1.5, ZR-RVV-4*1.5, cat5 etc.
3. Sharing tube principle principle: Different systems, different voltage levels, different current types of lines, should not be laid in the same tube or in the same slot.
For example: strong-current line and weak-current line should not share tube broadcast line and other line should not share tube
telephone line and other line should not share tube network communication line and other line should not share tube alarm circuit line and 24V power line should not share tube alarm circuit line and open pump line should not share tube multi-line control line and alarm circuit line, 24V power line should not share tube
Part 2 Equipment Installation
1. Circuit types
There are ring circuit, T circuit, and mixed circuit
2-wire is generally used for the circuit, some equipment requires ring circuit
Every circuit (loop) can have 100 point, 200 point, or 324 point etc. 10~20% margin should be left for each circuit

2. Detectors
detector types:
point type（Photoelectric smoke, ion smoke, temperature, complex, UV flame, combustible gas, dual band, etc.）
line type（Infrared beam, recoverable / unrecoverable temperature sensing cable, air sampling, distributed fiber, light section, etc.）
conventional detector（non-coded）intelligent detector（coded）
installation location caution:
point type（distance between ceiling, roof, wall and height from the ground） line type（laying way, distance between the roof , installation spacing） distance between other equipment and beam plate
3. Modules
surveillance module (input module, surveillance relay）
control module（output module, smoke exhaust relay）
combination module (input/output module, dual input module, dual output module, other combination module）
manual alarm button and fire hydrant button（coded/non-coded, telephone jack）
detector module（alarm relay, bus access module）
short circuit isolation module
relay module（switch module）
Installation location: in module box
4. Fire display panel
types of fire display panels:
1）LED display
2) analog display panel
3）LCD display
installation location of fire display panel: on each floor of the building
fire display panel wiring: It is connected to fire alarm control panel via RS485 line.
5. junction box, module box
calculate the size of junction box and module box
determine the installation location of the junction box and module box
The modules should be set up centrally.

6. telephone
1) multi-line telephone system N+1 line system 2N line system host capacity extension and jack
2）bus-line telephone system independent bus-line telephone system shared bus-line telephone system（can connect with fire alarm system)
line type
host capacity
module,extension and jack
Bus telephone switchboard

Multi – line telephone switchboard

7. broadcast
1) System components: recording plate, regional control panel, power amplifier, module, speaker
Power amplifier power capacity selection:
Capacity can not be less than 1.5 times the maximum capacity of broadcasts in the range of simultaneous broadcasts.
2) system mode: bus system, multi-line system
Bus system broadcast

Multi-line broadcast

Part 3 Equipment wiring

2. manual alarm button
1) non-coded manual alarm button
2) coded manual alarm button
3) with jack and without jack

3. fire hydrant button
Fire hydrant button function requirements：Open pump, alarm, lighting
1）non-coded fire hydrant button
2）coded fire hydrant button

Wiring of the pressure switch is similar to that of the non-coded fire hydrant button, just without feedback lighting.
4. Surveillance module equipment connect to surveillance module:
1) Water flow indicator
2) signal valve
3) non-coded fire hydrant button
4) fire damper
5) pressure switch
6) Water level monitoring
7) other feedback signals

5. Control module equipment connect to control module
1) elevator, floor lights
2) fan, air outlet, air valve
3) fire doors, shutter doors, file smoke hanging wall
4) alarm, sound and light alarm, broadcast circuit
5) rain valve solenoid valve
6) non-fire power cut, emergency lighting
7) other control equipment

6. Combination module The location for the combination
Types of combination modules
1) single input / single output module (each with an address point or share an address point)
2) Dual input module (one or two address points)
3) Dual output module (one or two address points)
4) Dual input / dual output module
5) Three input modules
6) four input / two output modules
7) other combinations of modules module：
1）Single input / single output module – air valve, fire doors, shutter doors, elevators and so on
2）Dual input module – flow indicator + signal valve, monitoring signal concentration
3）Dual output module – non-fire power cut, emergency lighting and so on
4）Dual input / dual output module – shutter doors and so on
5）Three input modules – monitor the signal concentration
6）Four input / two output modules – centralized monitoring and control (eg tower standard layer)
7）Other combinations of modules
7. multi-line control equipment
1) fire pump wiring

2) smoke exhaust fan wiring

Under normal circumstances, the rain valve group of electromagnetic valve, stage fire screen and other important fire facilities should also be set up multi-line linkage. Note: “Fire Regulations” only require fire pumps and fire engines in addition to automatic control, the need for manual direct control.
Part 4 Fire control center equipment
1. Fire control center equipment introduction
1) fire alarm controller (wall-mounted, cubic up, piano-style)
2) fire alarm controller components (host panel, multi-line disk, bus, circuit cards, communication cards, etc.)
3) DC power supply plate
4) fire broadcast and background music host
5) fire telephone host
6) CRT graphics display system
7) UPS uninterruptible power supply
8) Large space fire gun controller
9) electricity leakage fire alarm host
10) Level display
11) other equipment
2. the fire alarm controller capacity calculation Loop capacity (whether the detector / module is coded differently) Reserve capacity (consider fire partition) Number of loops Combined with multi-line disc,the number of bus lines Controller capacity

https://vedard.com/blog/do-not-use-water-for-these-types-fire-extinguishing/

 

Do not use water for these types fire extinguishing

April 22, 2021

 

 |  No Comments

Using water to extinguish fire, that is what we generally think of when we encounter fire. But for some types of fire, do not use water to extinguish fire. Because it will spread the fire and even lead to explosion. Below is the fire types which are not allowed to use water for fire extinguishing.
1.Electrical Fire

Water is electrical conductive material, if use water to extinguish electrical fire, it will cause electric shock and may lead to person death.
So, for electrical fire, we should firstly cut off the power supply. Then use carbon dioxide extinguisher or wet quilt to extinguish the fire. Foam extinguisher is not allowed for electrical fire extinguishing cause it is conductive material as well. If the hot fired TV set or PC etc. electrical appliance meets the water, it will explode.
2.Oil cooking fire

If fire happens on oil pan, do not use water to extinguish fire! The hot fired oil will spread with fire when it meets water. So, the fire will spread suddenly. Immediately cover the fired oil pan with cover or throw wet towel, vegetables into fired oil pan to cover the fire.
3.Fuel oil or paint fire

The density of fuel oil such as gasoline and paint is smaller than water, when use water to extinguish it, the water will sink and oil or paint will rise, then the fire spread. So, do not use water to extinguish fuel oil or paint fire. The correct way is using dry powder extinguisher or sand to extinguish the fire.
4.Hazardous chemical substances fire

Most chemical substances will have a chemical flame reaction when they meet water. The substances include sulfuric acid, nitric acid, hydrochloric acid, metal potassium, sodium, aluminum, magnesium etc.
Do not use water to extinguish chemical substances fire. The correct way is using dry sand or asbestos blanket to extinguish fire.
5.Gas fire

Do not use water to extinguish gas fire! The flammable gas such as coal gas, LPG, natural gas can not dissolve in water. They are lighter than water and can not be covered by water. So, if use water to extinguish the gas fire, the fire will spread. The correct way is using wet towel or wet quilt to cover the fire. Then, quickly close the gas valve.