Customization Parameters: Six Essential Categories
Customizing power equipment requires the customer to provide six categories of parameters: electrical parameters, structural dimensions, environmental conditions, functional requirements, standards and certifications, and quantity/delivery schedule. Industry experts note that the more complete the provided parameters are, the more accurate the price quote will be;
if parameters are missing, manufacturers can only provide estimates, leading to potential discrepancies and rework.
Therefore, it is best to provide all six categories of parameters upfront.
The Six Categories of Customization Parameters
- Electrical Parameters: Rated voltage, rated current/capacity, frequency, short-circuit breaking capacity, protection configuration;
- Structural Dimensions: Enclosure dimensions (width, height, depth), mounting method (floor-standing/wall-mounted), protection rating (IP);
- Environmental Conditions: Temperature, humidity, altitude, corrosion/pollution level (coastal or high-altitude locations must be specified);
- Functional Requirements: Smart features (communication, telemetry), operation mode (electric/manual), special functions;
- Standards and Certifications: Applicable standards (GB/T, IEC), export certification requirements (CE/UL);
- Quantity and Delivery: Order quantity, delivery milestones, packaging and transportation requirements.
Key Parameters for Specific Equipment
Transformers: Capacity (kVA), voltage class, impedance, loss level (energy efficiency).
Switchgear: Rated current, breaking capacity, number of circuits, “five-prevention” safety requirements.
Box-type Substations: Capacity, high/low voltage scheme, enclosure material, corrosion resistance level.
Busbar Trunking: Rated current, line length, protection rating, fire resistance requirements.
Instrument Transformers: Transformation ratio, accuracy class, application (metering/protection).
Key Points for Providing Specifications
Specifications should be provided in writing (via data sheets or drawings) and confirmed item by item; for any uncertain parameters, default values should be agreed upon with the manufacturer and noted in the proposal.
The more complete the specifications, the more accurate the quotation and the less rework required.
Common Pitfalls to Avoid
First, “missing specifications”: a lack of data regarding environmental conditions and standards leads to significant quotation discrepancies.
Second, “verbal specifications”: relying on verbal communication rather than written records causes disputes during acceptance.
Third, “conflicting specifications”: inconsistencies between load parameters and grid parameters will require manufacturer-requested corrections.
Trends and Recommendations
Custom specifications are shifting toward “standardized forms”: manufacturers provide templates for customers to fill out, enabling digital selection tools to automatically generate proposals.
For purchasers, the recommendation is to “provide all six categories of specifications upfront, confirm them in writing, and use the provided templates.”
Specifications serve as the roadmap for customization—comprehensive data ensures an accurate proposal.
