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HJD · Quality assurance
Quality checks
for your equipment
Our quality approach covers material and assembly checks, product inspection and documentation. Tell us your acceptance requirements so we can review which checks and documents apply to your equipment.
Material & process checks · Product-specific verification · Agreed document list
Transformer test area
Quality control stages
Material checks through
to final inspection
Use the same product requirements for manufacturing and inspection. Agree the checks, acceptance criteria and records needed at each stage.
01
Material inspection
Specify which materials and components need to be checked before the relevant production stage.
Items, specifications and records to agree.
02
In-process checks
Specify checks for assemblies and semi-finished components during production, in addition to the final inspection.
Control points and acceptance criteria to agree.
03
Product verification
Agree the inspections and tests for the product, model and configuration in your order.
Methods, frequency and results to record.
04
Release & records
Agree which records and documents are needed for inspection acceptance and delivery.
Required documents and identification to agree.
Inspection requirements vary by product. Instrument transformers, complete switchgear and power transformers each need their own control plan.
In-process quality checks
Switchgear assembly
control points
Review the sealing interfaces, operating mechanisms and interlocks used in the switchgear. For each check, identify the assembly, acceptance criteria and record required.
Sealing & assembly interfaces
Check the sealing components and their installation requirements. A sealing-component check alone does not establish a gas-tightness test result.
Mechanisms & operating linkages
Specify the opening, closing and linkage checks for the switch or breaker assembly.
Interlocks & semi-finished parts
Review the interlocks used in the equipment. In the instrument-transformer production example, inspection follows primary and secondary coil winding.
Inspection & testing by product
Inspection requirements
by product
Select your product group to see which inspection requirements to discuss. Each equipment family needs its own checklist.
Assembly and operating checks
Use the table to discuss which inspections your order requires.
Focus
Scope to review
What to confirm
Assembly interfaces
Scope to review
Sealing components, bushings and relevant assembly interfaces.
What to confirm
Identify the model, inspection method and record.
Mechanism operation
Scope to review
Mechanism checks and opening-and-closing linkage in the relevant assembly.
What to confirm
Agree the required operating checks and criteria.
Interlock operation
Scope to review
Applicable door and operating interlocks.
What to confirm
Confirm the interlock arrangement and verification record.
Agree the inspection items, frequency, acceptance criteria and records for the product in your order.
Power transformer inspections and tests
Use the table to discuss which inspections your order requires.
Focus
Scope to review
What to confirm
Product identification
Scope to review
Transformer type, model, ratings and configuration.
What to confirm
Match the inspection requirements to the equipment in your order.
Inspection & tests
Scope to review
Project-required inspections and applicable product tests.
What to confirm
Request the test list, basis, frequency and a sample record.
Test documentation
Scope to review
Reports and records required for the specified product.
What to confirm
Agree the document scope before acceptance.
Agree the inspection items, frequency, acceptance criteria and records for the product in your order.
Checks for other equipment
Use the table to discuss which inspections your order requires.
Focus
Scope to review
What to confirm
Product & configuration
Scope to review
Drop-out fuses, vacuum circuit breakers, disconnectors or earthing switches.
What to confirm
Identify the actual model and intended application.
Applicable checks
Scope to review
The component or equipment inspection requirements.
What to confirm
Agree a test plan for the selected product. A switchgear checklist needs to be adapted before use with other equipment.
Records & evidence
Scope to review
Documents required by the project for the specified model.
What to confirm
Check the named product, configuration and document coverage.
Agree the inspection items, frequency, acceptance criteria and records for the product in your order.
Documentation & traceability
Documents for
your order
During technical review, specify the documents you need for the equipment being built. Availability and content depend on the product and order.
Configuration documents
Describe the equipment as specified.
- Product and configuration references
- Applicable drawings and revisions
- Confirmed project requirements
Inspection records
Show the checks performed and their results.
- Agreed inspection and test scope
- Applicable records and results
- Product or order identification
Handover information
List the information required at handover.
- Agreed delivery document list
- Product instructions, where applicable
- Packing and equipment identification
Confirm the final document list and how each document will be identified for your order.
Certificates & test documentation
Certificates for
the specified equipment
Request the certificate or test document for your equipment. Check the named company, product and configuration, along with the document scope and validity.
01Certificate holder and covered manufacturing location
02Named product family, model or configuration
03Document number, issuer and applicable scope
04Issue date, validity and current document version
05How the document relates to the purchase requirements
Acceptance & quality support
Inspection acceptance
and issue resolution
Before handover, agree who will participate in inspection, which records are required and how any issues will be resolved.
How should we specify inspection requirements?
Send the product or model, project specification, required inspection items, acceptance criteria and document list. State whether the customer or a third party needs to participate.
Can we request witnessed inspection or FAT?
Include the request in your enquiry. The product scope, witness arrangements, timing and records must be reviewed and agreed for your order. Witnessed inspection and FAT are not included automatically.
Which reports or certificates will be provided?
Confirm the document list for your equipment and order. Check the named entity, model, configuration and coverage on each document. A certificate logo alone does not establish that coverage.
What if inspection identifies a deviation?
Agree how the issue will be recorded, how corrective action will be evaluated and when reinspection is required. During the review, identify the responsible contacts and the records needed to close the issue.
Project enquiry
Discuss your inspection requirements
Tell us the product, inspection criteria and documents your project requires. These details need to be agreed before the production and acceptance arrangements are finalized.
Email your project requirements
Include the product or model, inspection criteria, required documents and any witness arrangements.
Attach drawings or specifications to your email.