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RMU Cable Compartment Interface Records: What EPCs Should Request
Release Time: 2026-08-17
An EPC should request a controlled RMU cable-interface record linking each cable and feeder tag to the compartment, entry drawing, termination reference, document revision, open action and responsible package owner. It makes the handoff traceable; it does not select a termination or prove cable compatibility.
Part 1. Define the cable-compartment interface boundary
Start by naming the RMU panel, cable compartment, feeder scope and adjacent package. A cable interface can involve the RMU supplier, cable supplier, EPC and site team; the record should show which party owns each input. A product image is not evidence of cable compatibility or a termination arrangement.
Important: Keep the cable-interface record tied to controlled drawings and the current scope matrix. Do not turn a catalogue image into an installation or acceptance conclusion. (IEC 62271-202)
Part 2. Align cable and feeder identity
Every row should connect a cable or feeder tag to the RMU panel and compartment. Record the source document and revision so later changes can be traced.
Identity field
Record to align
Do not claim
Feeder tag
Approved circuit or feeder identifier
Final cable selection
RMU panel
Panel or functional-unit tag
Complete configuration
Compartment
Cable-compartment reference
A termination result
Source record
Drawing or schedule revision
As-built approval
Part 3. Link drawings and termination records
The interface record should link the GA or compartment drawing, cable schedule, termination document and any screen or earth reference that the project requires. If references conflict, log the conflict rather than choosing a preferred drawing informally.
Part 4. Assign package and approval responsibility
Name who controls the RMU drawing, who provides cable data, who reviews the termination record, who resolves the interface and who approves a change. A quotation should not silently transfer design responsibility.
The responsibility matrix should identify:
the RMU supplier drawing owner;
the EPC cable-schedule owner;
the cable or termination package owner;
the technical reviewer for discrepancies; and
the authority for controlled closure.
Part 5. Track open interface actions
Give each missing cable datum, drawing conflict or compartment question a unique action reference. Record the affected feeder, evidence gap, owner, due date and closure record. Keep an unresolved action distinct from an approved revision.
Action field
Minimum record
Reference
Unique project action number
Affected feeder
Cable or panel tag
Evidence gap
Drawing, schedule or termination record
Owner
Named package or design owner
Closure
Revised record or approval note
For network-planning context, see RMU expansion planning. It is not a cable-interface approval method.
Part 6. Build the RMU cable-interface RFQ pack
Send the interface record with one controlled revision register and ask suppliers to flag missing data or deviations explicitly.
RFQ input
Buyer should provide
Why it is needed
Scope basis
One-line diagram, panel list and interface matrix
Defines the boundary
Feeder identity
Cable tags and source schedule
Makes rows traceable
Compartment evidence
Current GA and entry drawings
Locates the interface
Termination basis
Controlled termination or cable documents
Shows the evidence source
Ownership
Package matrix and approval path
Separates responsibilities
Action control
Open-item log and revision rules
Prevents silent assumptions
Part 7. Use the controlled record for a product enquiry
After the cable-interface record, scope matrix and open actions are controlled, the EPC can discuss the equipment scope with the JUBANG switchgear and ring main unit range.
The product-family page does not prove cable fit, termination performance, compartment suitability, certification or project acceptance. Submit the controlled interface package through JUBANG Contact Us for project-specific review.
FAQs
What should an RMU cable interface record include?
Include the cable and feeder tags, RMU panel, compartment reference, entry drawing, termination document, revision, open action and owner.
Who owns the cable-compartment interface?
The project scope matrix should name the RMU package owner, cable or termination owner, EPC reviewer and approval authority.
What drawings are needed for RMU cable connections?
Request the current GA or compartment drawing, cable schedule, interface matrix and applicable termination document with revisions.
Can an RMU photo prove cable compatibility?
No. Compatibility requires approved project data and a responsible design review; a photo only supplies product context.
How should a cable-interface discrepancy be closed?
Assign a unique action, record objective evidence and owner, then close it through a controlled revision or approved disposition.
What should an EPC send with an RMU cable-interface RFQ?
Send the scope basis, feeder tags, compartment drawings, termination references, ownership matrix, open actions and revision register.
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