1 Preparation before power-on

1, according to the system design drawings to check whether the system installation meets the design requirements.

2, check the system line, the wrong line, open circuit, short circuit, virtual welding, etc. to deal with, to ensure that the line is normal.

3, testing system line ground insulation resistance and system ground whether to meet the requirements of the “fire automatic alarm system construction and acceptance specifications”, the ground insulation resistance is not less than 20 mega-home, the ground resistance can not be greater than 4 ohms when using special ground, the ground line ground resistance can not be greater than 1 ohm when using the joint ground.

4, respectively, the alarm (linkage) controller, fire display disk, broadcast intercom, fire-specific computer, power supply, and other equipment one by one to power up and check, normal after the system debugging.

2 Power on debugging

The commissioning of automatic fire alarm system and linkage system mainly includes the connection, login, preparation of linkage relationship and input and analog fire signal check whether each system is executed according to the logical relationship of the establishment. The process is divided into the following steps:

Step 1:Loop division

The alarm system is divided into areas (loops) according to the number of control panel circuits, and the circuit bus is permanently clearly marked. Mark all relevant location changes, increases, and decreases in the number of design changes that occur during construction on the as-built drawing so that no omissions occur in the next step.

Step 2:Address

The address number of the detector and module is indicated on the drawing, and the detector and various modules (monitoring and control modules) are encoded according to the drawing to ensure that the installed detector and module are coded following the number indicated on the drawing. To install following the address has been set to install, to prevent the installation of the device address error, and the address number also provides the linkage device logic input number for the preparation of linkage. After setting the address number, the name of the device installation location is calibrated according to the equipment condition, so that the alarm controller can display the name of the alarm point.

Note: Smart detectors and modules have the online write address function because there may be line breaks, short circuits, fault lines, and other line problems, making it difficult to write online addresses. Therefore, it is recommended to write the address of the detector and module before installing it, which can improve the efficiency of the test.

Step 3:Programming

According to the number of the detector and various modules, the Engineering Address Coding Table is organized and the display relationship, system information, and linkage are programmed according to the Engineering Address Coding Table and the control requirements of the system fire protection equipment.

Step 4:Connect to the alarm bus

Check and record the insulation impedance of the line again to meet the specification requirements. After measuring the DC voltage (confirming that the external line does not interfere with the voltage introduced into the system) between all external lines, between the external lines and the earth, and after confirming that the load of the system does not exceed the required capacity of the system, the bus can be connected to the controller (not 24V power cord, broadcast line, fire intercom line first). Make permanent and obvious markings on the bus of the access controller.

Note: Access to the host with unchecked lines is strictly prohibited. Wiring should be secure, each contact can not connect more than two wire connectors, terminals can not have obvious fork phenomenon, all lines and wire heads should have permanent numbering or marking, the guide should be classified tied neatly, the overall wiring should be beautiful, meet the specification requirements. The access line holes in the host should be blocked to prevent foreign objects from entering. The controller and power supply must be switched off when wiring.

Step 5:Power on, troubleshoot

Turn on the controller’s main power first, and then turn on the power to power up the operation. The initial power-up operation, the system may be fault or fire, can be used to eliminate line failure, equipment open circuit failure, detector failure, module failure, etc., after external troubleshooting, can be carried out after the work.

Step 6:Check the external lines of the module

Disconnect the external 24V power cord, manually activate the control module of the external device, check the resistance between the 24V power cords, ensure that there is no short circuit between the wires, check the ground insulation resistance of the 24V power cord, and ensure that the line-to-ground insulation resistance meets the specification requirements.

Description: As the number of start-up modules increases, inter-line resistance will gradually decrease, sometimes it is necessary to start the module batch, layering or sub-device type, and then check the inter-line resistance, check a part of the reset, reset, and then check the next part; The insulation resistance tested Ω and below is inaccurate. Disconnect the external fire broadcast line, manually start the broadcast control module, check the resistance between the broadcast lines, ensure that there is no short circuit between the lines, check the ground insulation resistance of the broadcast line, ensure that the line-to-ground insulation resistance meets the specification requirements.

Description: As the number of start-up modules increases, the number of speakers also increases, inter-line resistance will gradually decrease, sometimes need to start the module layer by layer, layer by layer of the inspection line resistance, each layer after inspection, reset on the controller, reset and then start another layer until the inspection is completed.

Step 7:Connect 24V power cord, broadcast line

Turn on the 24V power cord and fire broadcast line, set the controller to manual state, start all the linkage equipment one by one, ensure that the equipment starts following the specification requirements, ensure that the location of the equipment is consistent with the drawings, the inconsistency can not be started to modify the place until the system is all normal.

Step 8:Alarm test

The detector, hand report, monitoring module, and other alarm points one by one simulation alarm test, to ensure that each point can be a normal alarm, and its position and alarm plan consistent, for non-alarm and false alarm equipment to be processed and re-tested promptly;

Description: Alarm points have a smoke, temperature, hand report, fire hydrant, water flow indicator, signal valve, pressure switch, etc.

Step 9:Linkage test

Set the controller to automatic state, simulate fire alarm test on the alarm point, check whether the various direct output equipment actions are carried out following the set conditions, modify the non-conforming places until all correct, check whether the linkage of the controlled equipment meets the linkage control requirements, and modify the non-conforming places until all are correct.

3 Run, acceptance

After the simulation alarm and linkage test of the system are completed, the power-up operation of the system should be carried out, and the construction process is strictly prohibited to ensure the safety of the system. After 120 hours of trouble-free operation of the system, complete the Project Commissioning Completion Order for acceptance.