This switchgear enquiry checklist starts with a clear equipment scope for the quotation. A product name or photograph alone does not identify the required ratings, circuit arrangement or interfaces. The checklist below helps procurement teams, engineers and EPC contractors prepare an enquiry that can move into technical review.
1. Switchgear enquiry checklist: define the equipment scope
Describe where the equipment will be used: a building, industrial plant, substation, infrastructure facility or another application. State whether the request covers individual panels, a complete switchboard, a ring main arrangement or a package substation.
Separate the requested equipment from the wider electrical system. For example, supplying a switchboard does not automatically include the transformer, generator, UPS, installation or commissioning.
2. Provide the electrical system information
Include the system voltage and frequency, the required current ratings and the prospective fault level from the project design. Attach a single-line diagram where available. Identify incomers, bus couplers, outgoing feeders and any planned expansion.
If a value has not yet been determined, mark it as pending and identify who will confirm it. Avoid selecting a fault rating or protection arrangement from a similar-looking product photograph.
3. Describe the loads and operating functions
A load schedule helps distinguish motor feeders, general distribution, lighting, essential services and other circuit duties. State the required switching, isolation, metering, protection and control functions.
For source transfer or backup supplies, provide the required operating sequence and the interfaces with other equipment. Continuity requirements should be defined by the electrical design, including any UPS or bridging supply where applicable.
4. State the installation and service conditions
Confirm indoor or outdoor installation, ambient conditions, altitude, enclosure requirements, access restrictions and the available space. Include cable entry and termination requirements, maintenance clearance, transport limits and any constraints on the cabinet arrangement.
Special environmental or hazardous-area requirements need explicit review. A generic product range description does not establish suitability for every location.
5. Define components, controls and interfaces
List required component preferences and any approved alternatives. Include auxiliary-supply details, metering and protection requirements, interlocks and communication interfaces. Where the equipment connects to a building or plant control system, identify the information and functions to be exchanged.
6. Request documents for the actual model
Specify the drawings, data sheets, inspection records and conformity documentation required for approval and handover. Documentation should correspond to the selected model, configuration and applicable destination requirements.
Certificates and reports have defined product scopes. A document for one family or version should not be treated as proof for every item in a supplier’s catalog.
7. Add the commercial and delivery information
Include quantity, destination, required schedule, packing expectations and any site-delivery restrictions. Ask the supplier to distinguish confirmed lead time from an initial planning estimate, and to identify the information still needed before production can be scheduled.
A short enquiry template
- Application and destination:
- Equipment type and quantity:
- System voltage and frequency:
- Required current ratings and fault level:
- Single-line diagram and load schedule:
- Protection, control and communication requirements:
- Indoor/outdoor installation and service conditions:
- Required documents and inspection scope:
- Target schedule and delivery conditions:
Send the enquiry to Kaiyue Electric
Email the specification and drawings to sales@kaiyueelectric.com, or start with the project enquiry form. You can also review the current product pages and identify the equipment family closest to your application.
Related technical guides
- Compare fixed and withdrawable low-voltage construction.
- Distinguish 10 kV system voltage from 12 kV equipment ratings.
- Define the factory acceptance and handover checklist.
Technical reference
For background on voltage ratings, insulation levels and system information, see Schneider Electric’s medium-voltage selection guide. This explains general terminology; the agreed project specification and model documents define the supplied equipment.