3M Cable Jointing Kit - 92-NBA1C
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Product Information
Full details
This 3M Scotchcast 92-NBA-C cable junction box casting resin kit is ideal for electricians and technicians requiring robust electrical insulation, moisture sealing, and mechanical protection for straight-through cable joints. Its key benefit is the reliable, two-component polyurethane compound that cures to provide a durable and safe connection. A potential caveat is the need for careful mixing and application to ensure proper curing and performance. The kit supports conductor sizes from 1.5-10mm² for main cables and 1.5-6mm² for branch connections, accommodating up to 5 conductors.
All features
| Model Part Number | 92-NBA1C |
|---|---|
| Brand | 3M |
Extended Product Information
FAQs
What is the primary purpose of this 3M cable jointing kit?
The primary purpose is to provide electrical insulation, moisture sealing, and mechanical protection for straight-through cable joints.
What conductor sizes can be used with this kit?
It is suitable for main cables with a nominal conductor cross-sectional area of 1.5mm² to 10mm² and for branch connections from 1.5mm² to 6mm².
How many conductors can this kit accommodate?
The kit can accommodate up to 5 conductors.
Is the resin halogen-free?
Yes, the resin compound is halogen-free.
What is the voltage rating of this jointing kit?
The nominal voltage rating is U0/U (Um) 0.6/1 (1.2) kV.
What type of compound is used for casting?
A two-component polyurethane compound is used for casting.
Are screw connectors included with the kit?
Yes, the kit includes screw connectors for the conductors.
Troubleshooting
Resin does not cure or cures slowly
Ensure the two components were mixed in the correct ratio and thoroughly blended. Check that the ambient temperature is within the recommended range for curing.
Bubbles in the cured resin
Bubbles can form if the resin is mixed too vigorously or if air is trapped during pouring. Ensure gentle but thorough mixing and pour the resin slowly to minimize air entrapment. If possible, use a vacuum to de-gas the resin before pouring.
Incomplete encapsulation of conductors
Verify that the joint housing was adequately sized and that sufficient resin was mixed to cover all conductors and connectors completely. Ensure the housing was properly sealed before pouring.
Resin leakage from the joint housing
Ensure the joint housing was correctly assembled and sealed before pouring the resin. Inspect for any cracks or gaps in the housing and seal them appropriately.
Pros and Cons
Pros
- Provides excellent insulation and sealing properties.
- Halogen-free formulation enhances safety.
- Versatile for a range of conductor sizes.
- Includes necessary connectors for ease of use.
- Durable mechanical protection for joints.
Cons
- Requires precise mixing of components.
- Curing time needs to be observed for optimal results.
- Single application, not reusable.
- Requires specific tools for application.
Setup, Compatibility & Care
Setup:
- Preparation: Ensure the cable ends are clean, stripped to the correct length, and the connectors are securely in place.
- Mixing: Carefully follow the instructions provided with the kit for mixing the two-component resin. Ensure equal parts are mixed thoroughly to achieve proper curing.
- Application: Pour the mixed resin into the joint housing, ensuring it completely encapsulates the conductors and connectors.
- Curing: Allow the resin to cure fully according to the manufacturer's recommended time before energizing the connection.
Compatibility:
- Conductor Size: Compatible with main cables from 1.5mm² to 10mm² and branch connections from 1.5mm² to 6mm².
- Number of Conductors: Suitable for joints involving up to 5 conductors.
- Voltage Rating: Appropriate for systems with a nominal voltage of U0/U (Um) 0.6/1 (1.2) kV.
Care:
- Storage: Store the kit in a cool, dry place, away from direct sunlight and extreme temperatures, as per manufacturer guidelines.
- Disposal: Dispose of unused or cured resin and packaging in accordance with local environmental regulations.