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3M QS2000E-I-ABB 18/30kV Single-Core Cold Shrink Straight Joint (Cable Splice Joint)
- Model Segment Definition
| Segment | Signification | Remarques |
| QS2000E | Code de série de produits | 3M 2nd generation (QSII) enhanced cold shrink straight joint series, suitable for 18/30kV (24kV) medium voltage systems |
| je | Code de spécification | Suitable for single-core cables, conductor cross-section 50–150 mm², insulation outer diameter 21.3–35.0 mm |
| ABB | Special adaptation mark | Interface customized for ABB switchgear/transformers, ensuring perfect compatibility with ABB equipment |
| Implied Parameter | Voltage level / Structure | 18/30kV (24kV) système, single-core, cold shrink type, integrated stress control design |
- Core Specification Parameters
Paramètres électriques
| Paramètre | Valeur | Description |
| Tension nominale | 18/30 kV (Max. 36 kV) | Suitable for medium voltage power systems, conforme à la CEI 60502 standard |
| Maximum System Voltage | 24 kV | Meets requirements of IEEE 48-1990 standard |
| Applicable Cable Type | Copper wire shielded XLPE/EPR insulated single-core power cable | Dedicated for polymer insulated cables; not applicable to oil-impregnated paper insulated cables |
| Insulation Outer Diameter Range | 21.3–35.0 mm | Fits typical insulation outer diameter of 50–150 mm² single-core cables |
| Power Frequency Withstand Voltage | 65 kV / 1 min | Factory test standard to ensure insulation reliability |
| Partial Discharge | ≤10 pC | Standard performance index for medium voltage joints |
| Switching Impulse Withstand Voltage | 170 kV | Meets system overvoltage protection requirements |
| Short-Circuit Current Withstand | 31.5 le / 1 s | Compatible with short-circuit capacity of mainstream medium voltage systems |
Mécanique & Paramètres environnementaux
| Paramètre | Valeur | Description |
| Insulation Material | High dielectric constant silicone rubber | Permanent radial compression, excellent weather resistance and aging resistance |
| Protection contre la pénétration | IP68 | Fully dustproof and waterproof, suitable for underground/tunnel/humid environments |
| Température de fonctionnement | -40℃ ~ +90℃ | Wide temperature range, adapts to extreme climatic conditions |
| Durée de vie mécanique | ≥30 years | Maintenance-free design with long service life |
| Méthode d'installation | Cold shrink type (no heating tools required) | Automatically shrinks by pulling out the support core rope for easy installation |
| Poids | Environ. 0.9 kg/set | Complete with all components, convenient for on-site installation |
| Couleur | Noir | Standard industrial color, dirt-resistant |
Applicable Cable Parameters
| Paramètre | Domaine d'application | Remarques |
| Conductor Cross-section | 1×50–150 mm² | Suitable for mainstream medium voltage distribution cable cross-sections |
| Conductor Material | Copper / Aluminium | Compatible with two mainstream conductor materials, no special model required |
| Insulation Thickness | 10–15 mm | Standard insulation thickness for 18/30kV cables |
| Shield Type | Braided copper wire shield | Matches typical shielding structure of single-core cables |
| Overall Cable Outer Diameter | 25–40 mm | Typical outer diameter range for single-core cables |
3.Liste des accessoires
| Nom de l'accessoire | Quantité | But |
| QS2000E Cold Shrink Joint Body (with integrated stress control) | 1 pc | Core component providing insulation and stress control |
| Silicone Rubber Insulation Tube | 2 pcs | Cable insulation restoration and end sealing |
| Stress Control Mastic | 1 set | Stress control at shield cut-off position, eliminating electric field concentration |
| Sealing Mastic | 1 set | Seal both ends of the joint to prevent moisture ingress |
| Cleaning Kit (CC-2) | 1 set | Pre-clean cable surface to remove oil stains and impurities |
| Copper Mesh Grounding Wire | 2 pcs | Shield layer bridging and grounding connection |
| Constant Force Spring | 2 pcs | Shield layer connection, no welding or copper binding wire required |
| Installation Instruction Manual | 1 copy | Detailed illustrated installation guidelines |
| Support Core Rope Pulling Tool | 1 pc | Assist steady rope pulling during installation to avoid joint distortion |
| ABB Special Adaptation Bushing | 1 pc | Ensure perfect interface matching with ABB equipment |
- Concurrent & Comparaison entre marques
| Marque | Modèle | Différence principale | Scénario d'application |
| Original 3M Standard Type | QS2000E-I | Without ABB special bushing, universal type | Connection with non-ABB equipment, general medium voltage systems |
| Original 3M Large Cross-section Type | QS2000E-II | Suitable for 1×95–240 mm², insulation outer diameter 28.0–45.0 mm | Connection of large cross-section single-core cables |
| Original ABB | SOT Series Straight Joint | Prefabricated design, prix plus élevé, seamless compatibility with ABB equipment | ABB system matching, high requirement for brand consistency |
| Schneider | Cold Shrink Straight Joint Series | Different stress control design, slight difference in installation procedures | Schneider system matching, industrial automation applications |
| Alternative nationale | Changyuan CYLS-30/1.1 | Price about 1/2–2/3 of 3M, performance meets national standards | Budget-sensitive projects, non-critical circuits |
| Alternative nationale | Walen WRS-30/1.1 | Performances à coût élevé, same applicable range | General distribution projects, bulk procurement |
- Lignes directrices de sélection & Solutions de remplacement
5.1 Paramètres de sélection clés
Voltage Level Matching: Confirm system voltage is 18/30kV; not applicable for systems below 12kV or above 36kV.
Cable Specification Confirmation:
Conductor cross-section: Well compatible within 1×50–150 mm² range.
Insulation outer diameter: Must be within 21.3–35.0 mm with tolerance ≤±1mm, ensuring sufficient radial compression of cold shrink joint.
Shield type: Only applicable to copper wire shielded single-core cables; not for copper tape shielded or non-shielded cables.
Equipment Compatibility:
Connection with ABB switchgear/transformers: Select QS2000E-I-ABB; special bushing ensures reliable connection.
Connection with other brand equipment: Select standard QS2000E-I for higher universality.
Environnement d'installation:
Underground/tunnel/humid environment: IP68 protection grade fully applicable.
Outdoor direct burial: Additional protective sleeve required for enhanced mechanical protection.
Installation Tools: No heating tools required; only basic electrician tools and cleaning supplies, single-person installation available.
5.2 Solutions de remplacement recommandées
| Scénario d'application | Recommended Replacement Model | Avantages |
| Direct same-spec replacement | 3M QS2000E-I (Modèle standard) | Original authentique, entièrement compatible, slightly lower price |
| Large cross-section upgrade | 3M QS2000E-II | Fits 1×95–240 mm² cables, reserved for future capacity expansion |
| ABB equipment dedicated | 3M QS2000E-I-ABB | Special adaptive bushing, perfect matching with ABB equipment |
| Optimisation des coûts | Changyuan CYLS-30/1.1 | High-quality domestic alternative, obvious price advantage, performance meets national standards |
| Performance upgrade | 3M QS3000 Series | 3rd generation cold shrink technology, lower partial discharge, une plus grande fiabilité |
5.3 Précautions d'installation
- Cable Pre-treatment
Thoroughly clean cable surface with 3M CC-2 cleaning kit to remove oil stains and oxide layer.
Keep smooth transition at shield cut-off position to avoid tip discharge; professional tools are recommended.
Use matched compression terminals for conductor connection to ensure reliable contact.
- Procédure d'installation
Install stress control mastic and constant force springs first, then mount the cold shrink joint body.
Pull the core rope steadily at constant speed to avoid joint distortion and ensure close fitting with cable surface.
Install ABB special adaptive bushing to ensure good sealing at equipment interface.
- Safety Regulations
Installers must hold valid medium voltage cable construction qualification; confirm cable power off and fully grounded before construction.
Construction site shall be dry and clean; avoid installation in rainy or humid conditions.
- Quality Control
Perform insulation resistance test (≥1000 MΩ) and partial discharge test (≤10 pC) after installation.
Record installation date and test data for future maintenance and traceability.
- Product Features Summary
- Enhanced Cold Shrink Technology: QS2000E series adopts 2nd generation enhanced design with integrated stress control layer for superior insulation performance.
- Dedicated ABB Adaptation: Equipped with special bushing to ensure perfect interface compatibility with ABB switchgear/transformers and reduce installation risks.
- Installation facile: Cold shrink design requires no heating tools; single-person installation saves construction time and cost.
- Forte adaptabilité environnementale: Operating temperature -40℃~+90℃ with IP68 rating, suitable for various harsh working conditions.
- Maintenance-Free Design: Silicone rubber provides permanent radial compression without regular inspection, lowering operation and maintenance costs.
- Safe & Fiable: Passed strict factory tests with strong short-circuit current withstand capability to ensure safe system operation.
