EN
Battery Inspection
Periodic inspection of accumulator battery banks: internal resistance and capacity tests, electrolyte-leak checks, connection torque and battery room safety.
Battery periodic inspection tests at least once a year the UPS battery banks feeding critical loads during outages, generator start batteries, rail-marine-industrial accumulator banks and the battery systems of powered lifting equipment: electrical capacity, connection integrity and physical-chemical safety are assessed. The battery bank is the last link of the backup power chain; its failure means the silent collapse of the entire emergency infrastructure.
Inspection Items
- Electrical test: Cell-block voltage distribution, internal resistance (conductance) measurement and capacity (discharge) test; weak cells flagged per matching rules. CCA evaluation for starter types.
- Connection and insulation: Verification of busbar-cable connection torques, oxide-corrosion cleaning, terminal insulation; leakage current and insulation resistance measurement (function test of insulation monitoring especially in power plant battery rooms).
- Electrolyte and physical: Level and density measurement in flooded types with distilled water topping; swelling-current traces on the body, terminal leakage and acid vapour marks. Valve and bulge control on VRLA.
- Battery room safety: Ventilation against hydrogen accumulation with explosion-proof electrical equipment, eye-shower station, acid neutralisation material, spark source control and rack-load element soundness.
- Charging system: Rectifier-charger (float-equalize) settings against manufacturer values; temperature compensation verification.
Legislation and Standards
Batteries are subject to periodic control as work equipment and emergency infrastructure components under Law No. 6331 and the Work Equipment Regulation maintenance duty; UPS and generator tests connect to the emergency lighting and extinguishing continuity clauses of fire legislation. Technical references: TS EN IEC 60896 series for stationary lead-acid, TS EN 62578 / IEC 62578 for VRLA, manufacturer instructions for the battery room and ventilation, and relevant electrical installation regulations. The end-of-life criterion is generally accepted as capacity falling below eighty percent.
Risks and Operator Recommendations
The heaviest scenarios are thermal runaway in a bank with drifted charging settings and hydrogen explosion in the room, plus arcing and fire at a loosened terminal. Therefore thermographic scanning must join connection torque in the annual routine. When replacing cells, matching internal resistance is essential: mixed old-new banks reverse-charge and damage the weak cell. Licensed disposal records of waste batteries must be entered into the inventory as required by environmental law. Monthly superficial control of starter batteries and periodic discharge testing of UPS banks (true autonomy verification) are recommended; capacity loss appears only under real test.
Outcome
At the end of testing, a signed report with the cell-based capacity table and replacement proposals is issued. Battery controls are within our Periodic Inspection of Installations service. For your power infrastructure, review UPS Installations and Generator System, or contact us for your programme.
FAQ on Gas Detector Inspection
The unit known in the field as the catalytic bead (pellistor) combustible gas detector measures explosive-flammable vapour-gas such as methane-propane-LPG-hydrogen as a percentage of LEL (lower explosive limit). In natural gas-biogas-chemical storage, boiler house and underground-garage environments it is the sensor of the early alarm-cut (gas valve-lock) chain; its sensitivity-calibration is a direct life-safety matter.
Catalytic sensors lose sensitivity over time through dirt (dust-silicate-oil) and ageing (drift). In practice calibration-verification is recommended half-yearly and tightened in dusty-hot-chemical environments. Calibration runs with reference gas (methane-propane standard), the alarm-cut setpoint is verified; sensor life (typically five years) and the manufacturer calendar are tracked. The validity and stamp-calibration label of the device are checked.
Per-sensor zero-point and span (reference gas) verification, staged alarm threshold trial (typically 10 % LEL warning, 20 % cut), automatic isolation scenario with cut relay-gas valve-solenoid-servo, audible-visual warning and panel-remote-log verification, cable-joint-ingress protection (IP, suitability for the explosion zone), gas line leak test with detector placement-air flow-blind spot review. Verification enters a certificate; a failed sensor is replaced-calibrated and retried.
Under Law No. 6331 and the explosive atmosphere-fire safety legislation, installing and maintaining the gas alarm-shutdown system is mandatory; insurance audits ask for the periodic calibration certificate. The operator keeps personnel alarm-response training (no panic-ventilation-source cut-emergency service), the evacuation scenario, fault-log (bypass-shutdown) management and the gas valve-manual intervention instruction current. Reports and records are filed and shown in audits.