High-Voltage Series-Circuit Connections
AGL Primary Connector Kit (L-823)
Field connection interface for primary series-circuit cable
AGL primary connector kits for high-voltage series-circuit cable connections, with compatibility based on cable construction and circuit requirements.
Supplied by Precision AGL Solutions
Product Overview
AGL Primary Connector Kit (L-823)
What It Is
AGL Primary Connector Kit (L-823) provides the field connection interface for high-voltage airfield ground lighting series-circuit cables at isolating transformers, cable joints and other approved field connection points.
Designed for airport series-circuit primary cable systems, it provides a controlled, insulated electrical connection between the primary cable and associated AGL equipment or cable sections.
Selection Depends On
Correct selection depends on the complete cable and connection arrangement: cable construction, conductor size, insulation system, voltage class, connector configuration and installation method.
Primary connectors may also be required at approved cable jointing or connection locations, depending on the airfield lighting design. The kit must match the specific primary cable and intended connection arrangement.
CCRConstant Current Regulator
Primary CableSeries circuit
L-823 Primary ConnectorField interface
Isolating TransformerL-830
Secondary CircuitFixture lead
AGL FixtureLight fixture
Applications
Where L-823 Primary Connector Kits Are Used
Transformer connectionsPrimary cable connections to isolating transformers.
Cable terminationSeries-circuit cable termination.
Joints & connection pointsPrimary cable joints and connection points.
Runway lighting circuitsSeries-circuit applications.
Taxiway lighting circuitsSeries-circuit applications.
Approach lighting circuitsSeries-circuit applications.
Rehabilitation & new installationsAirfield lighting rehabilitation and new AGL installations.
ReplacementReplacement of existing primary connectors.
Maintenance & sparesMaintenance and spare-parts requirements.
Confirm the exact connector configuration against the cable construction and equipment interface before installation.
High-Voltage Connection
Electrical Integrity of the Series Circuit
A Correctly Selected Connector Supports
- Reliable conductor connection
- Electrical insulation
- Cable-to-equipment interfacing
- Moisture protection
- Mechanical integrity
- Maintainable field connections
- Compatibility with the primary AGL cable system
Not by Voltage Rating Alone
The connector must provide the required electrical connection while maintaining suitable insulation and sealing for the installation environment.
It should not be selected solely by voltage rating. Cable construction, conductor dimensions, insulation arrangement and installation method must also be considered.
Cable Compatibility
Confirm the Cable Before Ordering
Confirm
- Cable designation
- Conductor size
- Conductor construction
- Insulation type
- Overall cable construction
- Voltage class
- Outer diameter
- Cable manufacturer, where relevant
- Existing connector arrangement
- Installation method
Why It Matters
Cable compatibility is one of the most important selection criteria. Different cable constructions may require different connector components or termination arrangements.
For replacement projects, check the existing cable identification and connector configuration before selecting a replacement kit.
Voltage & Conductor
Voltage Class and Conductor Compatibility
Voltage Class
The connector must suit the voltage environment of the AGL series circuit and provide appropriate insulation and dielectric performance. Coordinate selection with:
- Primary cable voltage characteristics
- System operating current
- Insulation system
- Transformer connection
- Applicable project specification
- Installation environment
Confirm the applicable voltage rating from the selected connector’s technical documentation.
Conductor Compatibility
The connector must accommodate the conductor construction and size of the primary cable. Confirm:
- Conductor cross-sectional area
- Conductor diameter
- Stranded or other conductor construction
- Cable insulation dimensions
- Connector contact arrangement
- Required termination method
A connector that is electrically suitable but mechanically incompatible with the cable should not be used.
Transformer Connection
Connection to Isolating Transformers
Primary Cable → Primary Connector → L-830 Isolating Transformer
Select as a Coordinated Assembly
A primary application is connecting the AGL primary cable to an isolating transformer. The connector provides the interface between the high-voltage primary cable and the transformer connection, so connector and transformer should be selected together, taking account of the transformer lead configuration, cable construction and approved connection method. See AGL Isolating Transformer (L-830).
Joints & Splices
Cable Joint and Splice Applications
Selection Basis
Primary connectors may form part of approved series-circuit cable connection arrangements. Where a joint or splice is required, select the system according to:
- Cable construction
- Conductor size
- Voltage class
- Insulation requirements
- Joint configuration
- Environmental conditions
- Installation procedure
Permanent Joints
For permanent cable joints, a dedicated Joint / Splice Kit may be more appropriate than a transformer connector arrangement.
Sealing & Environmental Protection
Moisture, Soil and Temperature Exposure
Airfield primary cable connections can be exposed to moisture, water, soil, temperature changes and other conditions.
Depending on the Selected Kit
- Cable sealing
- Connector insulation
- Moisture resistance
- Environmental sealing
- Mechanical protection
- Underground installation
- Transformer pit installation
- Resistance to contamination
The complete installed connection should provide the environmental protection required by the project and installation method.
Installation
Installation Method
- Confirm the connector kit matches the cable
- Verify cable identification and conductor dimensions
- Prepare the cable according to the approved procedure
- Install connector components in the specified sequence
- Establish the required conductor connection
- Complete insulation and sealing components
- Verify mechanical integrity
- Inspect the completed connection
- Perform the required electrical testing
- Record the connection details where required
Follow the connector manufacturer’s approved procedure and the airport’s electrical installation requirements. Take special care over cable preparation and sealing: improper installation can compromise the electrical and environmental performance of the connection. Never connect or disconnect a primary connector on an energised series circuit.
Transformer Pits
Installation at Transformer Pits
Consider
- Cable routing
- Connector orientation
- Transformer lead position
- Water accumulation
- Drainage
- Mechanical protection
- Access for maintenance
- Separation of primary and secondary connections
- Protection from accidental cable damage
The completed installation should allow future inspection and maintenance without placing unnecessary stress on the connector or cable.
Technical Data
AGL Primary Connector Kit Specification
| Parameter | Specification |
|---|---|
| Product Type | AGL Primary Connector Kit |
| Designation | L-823 |
| Application | AGL high-voltage series-circuit connections |
| Voltage Class | Primary-side connections on 5,000 V-class series circuits; confirm the class, type and style against AC 150/5345-26E and the model datasheet |
| Cable Compatibility | Selected according to cable construction |
| Conductor Range | Model-specific |
| Conductor Construction | Compatible cable construction required |
| Cable Diameter Range | Model-specific |
| Connector Arrangement | Configuration-specific |
| Sealing | According to selected kit |
| Insulation System | Model-specific |
| Connection Method | Manufacturer/project specified |
| Transformer Compatibility | According to approved interface |
| Installation Method | Field installation according to approved procedure |
| Dimensions | Model-specific |
| Weight | Model-specific |
| Environmental Suitability | According to installation requirements |
| Compliance | Applicable FAA/project requirements |
Selection Procedure
Establish Before Procurement
Step 1 — Identify the Cable
Provide the primary cable designation and construction details.
Step 2 — Confirm Conductor Size
Confirm the conductor size and construction.
Step 3 — Confirm System Requirements
Establish the series-circuit voltage environment and operating current.
Step 4 — Identify the Connection Point
- Transformer connection
- Cable joint
- Equipment interface
- Replacement connection
- Other approved field connection
Step 5 — Confirm Installation Environment
- In a transformer pit
- Underground
- In another protected enclosure
- In an exposed field location
- As part of a rehabilitation installation
Step 6 — Confirm Connector Configuration
Match the connector configuration to the cable and equipment interface.
Replacement
Replacement Applications
L-823 kits can be used in rehabilitation and maintenance projects where existing connector assemblies require replacement.
Before Replacement, Inspect
- Existing connector identification
- Primary cable type
- Cable conductor size
- Cable insulation
- Transformer interface
- Existing sealing arrangement
- Installation environment
- Condition of the cable
If the existing connector has failed repeatedly, inspect the cable and transformer connection as well rather than replacing the connector alone. See Replacement Connector Kit.
System Compatibility
Treat the Connector as Part of a Complete System
Primary Cable + Connector Kit + Transformer/Joint Interface + Installation Method
Potential Mismatches
- Incorrect conductor size
- Incorrect cable construction
- Incompatible cable diameter
- Incorrect voltage class
- Improper connector configuration
- Inadequate sealing
- Incorrect installation procedure
A technically suitable connector in isolation may not be suitable for a particular cable installation.
Commissioning & Testing
Inspect and Test the Completed Connection
Typical Checks
- Visual inspection
- Cable identification
- Connector installation verification
- Mechanical integrity
- Sealing inspection
- Insulation testing
- Continuity testing where applicable
- Series-circuit electrical testing
- Transformer connection verification
Perform testing using procedures and limits appropriate to the complete AGL series circuit.
Maintenance & Inspection
Part of the Airfield Lighting Maintenance Program
Inspection May Include
- Connector physical condition
- Cable entry and termination
- Signs of moisture ingress
- Sealing condition
- Cable insulation condition
- Mechanical damage
- Corrosion or contamination
- Evidence of overheating or electrical distress
- Transformer connection condition
Connections in underground pits should receive particular attention to moisture and environmental conditions.
Troubleshooting
Symptoms and Possible Causes
Open Series Circuit
- Damaged primary cable
- Failed connector
- Incorrect connector installation
- Loose conductor connection
- Cable joint failure
- Transformer connection problem
Insulation Fault
- Damaged cable insulation
- Incorrect connector assembly
- Moisture ingress
- Failed sealing
- Mechanical damage
- Contamination
Repeated Connector Failure
- Connector selection
- Cable compatibility
- Installation procedure
- Cable movement or mechanical stress
- Moisture exposure
- Electrical loading
- Transformer interface
- Environmental conditions
May indicate a system-level installation issue rather than a defective connector alone.
Procurement Checklist
When Requesting an L-823 Primary Connector Kit, Provide
Information Required
- Primary cable designation
- Cable manufacturer, if available
- Conductor size
- Conductor construction
- Cable insulation type
- Cable outside diameter
- Series-circuit voltage/current
- Connection application
- Transformer type, if applicable
- Existing connector information
- Installation environment
- Required quantity
- Project or airport specification
For fastest selection, send the cable size and construction together with a photograph or existing connector identification where available.
Safety
Electrical Safety — Isolation and Lock-Out
WARNING — never open a live series circuit. An open series circuit driven by a constant-current regulator can produce dangerously high voltage. Opening, cutting or disconnecting any part of an energised circuit can cause serious injury or death and damage equipment.
- De-energise the circuit at the regulator and apply the site lock-out / tag-out (LOTO) procedure before any work
- Where the circuit must be isolated or shorted, use the series circuit cut-out switch or approved isolation device — not an improvised bypass
- Verify the circuit is de-energised and the output is isolated before touching conductors, connectors, splices or transformers
- Work only under the airport's permit-to-work system, using qualified personnel and the manufacturer's instructions
- Follow the applicable national electrical safety regulations and site procedures
Standards & References
Associated Reference and Requirements
FAA L-823 Reference
L-823 plug and receptacle connectors are specified in FAA AC 150/5345-26E. The specification covers connectors in more than one voltage class, and both primary-side and secondary-side connectors can be L-823 types of different classes and styles. This site lists primary and secondary kits separately for selection, so confirm the class, type and style on the order.
Related Requirements
- FAA AC 150/5345-7F: L-824 cable the connector must match
- FAA AC 150/5370-10 (Item L-108): installation of underground airport power cable, including connections
- FAA AC 150/5340-26C: maintenance of airport visual aid facilities
- FAA AC 150/5345-47C: isolation transformers (L-830)
- ICAO Doc 9157 Part 5: electrical systems
- Airport authority and project AGL specifications
- Connector manufacturer installation procedure
Documentation
Technical Documentation
Depending on the Selected Configuration
- Connector datasheet
- Cable compatibility information
- Installation instructions
- Assembly drawings
- Dimensional information
- Connector identification information
- Testing requirements
- Compliance documentation
- Packing and identification information
Project-specific documentation can be supplied as part of the technical submittal where required.
FAQ
AGL Primary Connector Kit (L-823) — Frequently Asked Questions
What is an L-823 primary connector kit and where is it used?
An L-823 primary connector kit provides the field connection interface for high-voltage airfield ground lighting series-circuit cables at isolating transformers, cable joints and other approved field connection points. It gives a controlled, insulated electrical connection between the primary cable and associated equipment or cable sections, on runway, taxiway and approach circuits, in new installations, rehabilitation, replacement and spares.
What does the FAA specify for L-823 connectors?
L-823 plug and receptacle connectors are specified in FAA AC 150/5345-26E. The specification covers connectors in more than one voltage class, and both primary-side and secondary-side connectors can be L-823 types of different classes and styles. This site lists primary and secondary kits separately for selection, so confirm the class, type and style on the order.
Can a primary connector be selected by voltage rating alone?
No. The connector must provide the required electrical connection while keeping suitable insulation and sealing for the installation environment, so cable construction, conductor dimensions, insulation arrangement and installation method must also be considered. A connector that is electrically suitable but mechanically incompatible with the cable should not be used.
Which cable details should be confirmed before ordering?
Confirm the cable designation, conductor size, conductor construction, insulation type, overall cable construction, voltage class, outer diameter, the cable manufacturer where relevant, the existing connector arrangement and the installation method. Different cable constructions may need different connector components or termination arrangements.
How does an L-823 connector connect to an L-830 isolating transformer?
The usual arrangement is primary cable, then primary connector, then L-830 isolating transformer. The connector is the interface between the high-voltage primary cable and the transformer connection, so connector and transformer should be selected together, taking account of the transformer lead configuration, cable construction and approved connection method.
Should a connector or a joint / splice kit be used?
Primary connectors may form part of approved series-circuit cable connection arrangements. Where a permanent cable joint is required, a dedicated Joint / Splice Kit may be more appropriate than a transformer connector arrangement. Select either according to cable construction, conductor size, voltage class, insulation requirements, joint configuration, environmental conditions and installation procedure.
How is an L-823 primary connector installed?
Confirm the kit matches the cable, verify cable identification and conductor dimensions, prepare the cable according to the approved procedure, install the connector components in the specified sequence, complete the insulation and sealing components, then inspect and test the completed connection. Follow the connector manufacturer approved procedure and the airport electrical installation requirements. Take special care over cable preparation and sealing, and never connect or disconnect a primary connector on an energised series circuit.
How is a completed primary connection tested?
Typical checks include visual inspection, cable identification, connector installation verification, mechanical integrity, sealing inspection, insulation testing, continuity testing where applicable, series-circuit electrical testing and transformer connection verification. Use procedures and limits appropriate to the complete AGL series circuit.
What causes primary connector failures?
An open series circuit can come from a damaged primary cable, a failed connector, incorrect connector installation, a loose conductor connection, a cable joint failure or a transformer connection problem. An insulation fault can come from damaged cable insulation, incorrect connector assembly, moisture ingress, failed sealing, mechanical damage or contamination. Repeated connector failure may indicate a system-level installation issue rather than a defective connector alone.
Is it safe to disconnect a primary connector on a live circuit?
No. An open series circuit driven by a constant-current regulator can produce dangerously high voltage, and opening, cutting or disconnecting any part of an energised circuit can cause serious injury or death. De-energise the circuit at the regulator, apply the site lock-out / tag-out procedure, use the series circuit cut-out switch or an approved isolation device, verify the circuit is de-energised and work under the permit-to-work system. See the electrical safety warning on this page.
What should be provided when requesting an L-823 primary connector kit?
Provide the primary cable designation, cable manufacturer if available, conductor size and construction, cable insulation type and outside diameter, series-circuit voltage and current, the connection application, the transformer type if applicable, existing connector information, installation environment, quantity and the project or airport specification. For the fastest selection, send the cable size and construction with a photograph or existing connector identification.
Why Precision AGL Solutions
Connector Selection as Part of the Complete Installation
Precision AGL Solutions supplies components for airport series-circuit lighting systems and approaches connector selection as part of the complete AGL electrical installation. We can assist with:
Our Support
- Primary connector selection
- Cable compatibility review
- Conductor size matching
- Transformer connection requirements
- Replacement connector identification
- Series-circuit component coordination
- Project-specific technical documentation
Procurement Information for Indian Projects
Indian public tenders commonly ask for the documents below. State which ones your tender requires when you send the enquiry, so they are covered in the quotation.
- Manufacturer / OEM authorisation
- Country of origin and local-content declaration (for Make in India purchase preference)
- Type-test and routine-test certificates, and the FAA / ICAO / IEC compliance documents named in the specification
- Datasheets, drawings and installation instructions
- Warranty, delivery period and spares support
- GeM catalogue or tender-portal requirements, where applicable
Request L-823 Primary Connector Selection
Need the correct L-823 connector for an airport series-circuit cable? Send us the cable size and construction for connector selection. For replacement projects, you can also provide the existing connector identification, transformer details, cable photograph or project specification. Send your cable size, cable construction, voltage requirements and connection application to receive a project-specific connector recommendation.
- Emailprecisionaglsolutions@gmail.com
- Websiterahulsharmaagl.in
- LinkedInPrecision AGL Solutions
- Phone+91 98214 96412
Engineering Note
Primary connector selection is configuration-dependent. Cable construction, conductor size, voltage class, connector arrangement, insulation system, sealing requirements and installation method should be verified together before procurement. Final installation should follow the approved connector manufacturer’s procedure and applicable airport/project requirements.
Product Disclaimer
Product availability, configuration, dimensions, electrical characteristics, photometric performance, certifications and compliance status depend on the selected manufacturer and project specification. The technical values published on this page should not be treated as a substitute for the manufacturer's current approved Technical Data Sheet.
Final selection shall be based on the approved project specification, applicable aviation standards, authority requirements, manufacturer documentation and site conditions. Use of this page is also subject to the Legal Notice, Disclaimer & Terms of Use.
Standards and editions referenced on this site are listed on the Standards Reference page.