The EC Global Inspection for battery chargers is intended to provide information about battery charger inspection and tests in the manufacturing shop. The information in this article opens you up to how EC helps with small electrical appliance inspection.
Because it is written for a typical battery charger, it might not be detailed enough for exceptional circumstances.
EC Global Inspection for Battery Charger-Material Inspection
Raw materials inspection is the first real inspection task. A mill certificate’s original or authorized copy is often on hand at the manufacturer’s facility.
The quality inspectors from EC Global Inspection examines these certifications for specifications compliance and, as necessary, drawing compliance.
The review includes inspections on:
- Manufacturer’s name and location
- The certificate number, grade
- Batch number
- Chemical composition
- Mechanical properties
- Cast or Heat number (for metal parts)
- Heat treatment condition
- Surface finish
- Structural observations, notable defects
Test certification or conformity certificates may be used to support ancillary items. The certification’s content must match the items’ required scope to be valid.
The identification of materials on the certificates is verified by the inspector against the materials marking. Also, the drawing datasheet of the battery charger, material list, and other specifications must be inspected as necessary.
The following items are included in the inspection visit report (IVR), which is provided after an EC Global inspector has completed the material inspection:
- Satisfactory document review confirmation
- Certification endorsement record reviewed/witnessed
- Record all non-conformities
- Record the result of any tests witnessed
EC Global Inspection for Battery Charger Construction
Battery Charger manufacture will begin fabrication once the raw material inspection is complete and the results are satisfactory, or any non-conformities are resolved by corrective action.
Based on the ITP (inspection and test plan) that has already been approved by the buyer and the manufacturer of the battery charger, the EC Global inspector examines the following aspects of the battery charger.
The ITP specifies the inspection scope. Some buyers prefer to have strict control and designate the TPI inspector in more “witness or hold points” for inspection and test activities, while others prefer fewer “hold or witness points” and designate ITP (inspection and test plan) much more in the “review document.”
According to the budget buyers set aside for inspection, a lot more inspection will result in much higher costs and fewer dangers, and a lot less inspection will result in higher costs but fewer guarantees.
EC Global Inspection of General Arrangement Check of Battery Charger
The EC Global inspector verifies that all devices – instruments, compartments, control switches, etc. – are appropriately rated, placed, and labeled. Inspection procedures are followed in line with approved drawings.
Similarly, the quality control report of the battery charger manufacturer will be inspected during the next visit or on the day of the final inspection if the inspector is not in the “witness” or “hold” point in the ITP for this inspection stage.
EC Global Inspection Test of Battery Charger Insulation Resistance
battery charger using a 500V Megger, insulation resistance can be measured between control circuits and the earth (sensitive devices excluded). The second step involves using a 1000V Megger to measure insulation resistance in all relevant permutations for the main three-phase/single-phase circuits.
The allowable upper limit depends on the circuit, but anything more significant than 2 Megohms is typically unacceptable.
Based on the ITP, the agent from EC Global inspection will either observe the test or inspect the quality control test report of the battery charger manufacturer at a subsequent visit or on the day of the final inspection.
EC Global Inspection Dielectric Test for Battery Charger Withstand Voltage
A power frequency voltage of 1.5 kV is placed between the ground and the control circuits for one minute. Then, for 1 minute, all applicable permutations of power circuits receive a power frequency voltage of 2 KV.
It will pass if neither a flashover nor a puncture happens during the test. Like the ITP, the EC Global inspector either observes the test or reviews the quality control test report of the battery charger manufacturer at a subsequent visit or on the day of the final inspection.
EC Global Inspection Test for Battery Charger Sequence
Functional testing of the circuitry and relevant tests are used to validate the circuits. The acceptance requirements for the sequence test include the project concept and authorized schematic diagrams—including any necessary, recorded, “as built” modifications.
Like the ITP, the EC Global inspector either observes the test or reviews the quality control test report of the battery charger manufacturer at a subsequent visit or on the day of the final inspection.
EC Global Inspection Characteristics Protection Relays Test for Battery Charger
Primary or secondary injection techniques, among others, are used to observe relay functions and operating curves. Typically, the performance follows the manufacturer’s data.
Like the ITP, the EC Global inspector either observes the test or reviews the quality control test report of the battery charger manufacturer at a subsequent visit or on the day of the final inspection.
EC Global Inspection Temperature Rise Test for Battery Charger
The battery charger is run at maximum capacity until important components reach temperature stability. The test will pass if the temperature rise does not reach the prescribed value.
EC Global Inspection Mechanical Operation Test for Battery Charger
The test ensures that all control mechanisms function correctly and respond appropriately. It will be approved if the test is conducted appropriately based on the reference material and schematics.
EC Global Inspection for Battery Charger Reporting
After each visit, a third-party inspector provides an Inspection Visit Report (IVR) and a final report that summarizes the actions taken during the production of the Battery Charger following the contract requirements and distributed within the contractually stipulated time frames.
The report is in the format required by the client and states whether the Battery Charger has been approved or rejected.
EC Global Inspection for Battery Charger – Release Note
A release note is produced by an EC Global Inspection agent as needed by the contract or purchase order and given to the manufacturer once the Battery Charger has been ultimately accepted.
Conclusion
This article reviews how EC can help with small electrical appliances. The processes involve a lot of technicalities. So, to always be on the safer side, ensure to engage the service of an EC Global Inspection company.
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