What are the common mistakes when installing fire emergency power?...
What should I pay attention to when maintaining EPS for fire emergency power supply?
When maintaining fire emergency power EPS, the following important matters need to be noted:
Site maintenance
Ensure that the indoor EPS installation is well ventilated and avoid high temperature environment, because the temperature has a great impact on the service life of the battery, and the ambient temperature is not higher than 30 ° C in the fire protection industry.
EPS must be away from fire sources and flammable and explosive products, avoid debris accumulation, fire safety and prevent damage to the cable caused by rats.
In spring and summer, the room should be kept dry and moisture-proof to prevent condensation on the EPS internal control circuit board leading to control failures.
Clean the dust regularly to prevent dust from causing the failure of the control board. At the same time, avoid EPS placement points too close to the window to prevent water immersion, rain and sun exposure.
Mains input maintenance
Often detect whether the mains voltage is normal, and whether the zero and live lines are misaligned, especially in the power grid with dual mains or standby generator sets, it is necessary to ensure that the zero live lines of the two power supplies are consistent to avoid EPS failures.
Users with a surge arrester installed at the front end of EPS should periodically check whether the surge arrester and ground cable are normal.
In areas prone to rodent infestation, protective sleeves should be installed for cable lines.
Line maintenance of EPS output loop
Regularly check the working status of each output circuit breaker, use the clamp meter to test whether each circuit is overloaded, and sense the temperature anomaly by touching the cable to confirm whether the wire diameter is appropriate.
Battery Management
Periodically check whether the battery wiring is loose, whether the battery compartment is clean, and clean the corrosion on the surface of the battery compartment.
Check whether the battery capacity and voltage are normal. If the battery capacity drops rapidly or the voltage is abnormal, replace or repair the battery in time.
Check whether the battery charging current is normal to prevent battery aging due to abnormal charging.
Power Management
Periodically check that the voltage, frequency and current of the input and output of the power supply are stable and normal.
Check whether the fans inside the power supply are running properly. If any fan is abnormal, clean and replace it in time.
Troubleshooting
When there is a fault inside EPS, it is necessary to distinguish according to the self-test of EPS and the detection status of the maintenance personnel using the tester.
Wiring and lighting installation
Emergency lighting lines should be arranged separately, each evacuation exit should have an independent emergency lighting control loop, and the insulation resistance of the wire can be tested only after the wire is connected.
The metal parts to be installed must be corrosion resistant, the symbol lamp must be made of non-flammable materials, and the arrow of the symbol must be in the same direction as that of the refuge.
Distribution box installation
The structure and electrical components of the emergency lighting distribution box must have fire resistance and heat resistance, and should be distinguished from other general lighting distribution boxes.
CONCLUSION
Following these maintenance items ensures that the EPS system will work reliably in an emergency.
EPS BATTERY SERIES
The centralized power supply for fire emergency lighting is a kind of backup power supply equipment, which provides power guarantee for emergency lighting equipment to ensure that the on-site lighting equipment can operate normally in emergency situations such as fire. Provide a long-term backup power supply to meet the needs of the emergency lighting system.
Extended reading
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