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TE Connectivity RAYCHEM POLT 3XIH1-L12A Heat-Shrink Power Cable Terminal
3XIH1-L12A is the specification code of TE Connectivity RAYCHEM brand POLT series ≤12kV 3-core heat-shrink power cable terminal. The complete model is usually marked as POLT-12D/3XIH1-L12A. It is suitable for outdoor terminal installation of polymer insulated power cables such as Cross-Linked Polyethylene (XLPE) and Polyethylene (ЧП), providing reliable electrical insulation and environmental protection.
- Определение сегмента модели
| Сегмент | Значение | Описание |
| 3 | Cable Core Number | Specially for 3-core cables |
| Х | Insulation Type | Suitable for polymer insulated cables (XLPE/PE/EPR) |
| IH1 | Тип щита & Size Specification | IH = Copper Wire Shield; 1 = Conductor cross-section 70-120mm² |
| L12A | Класс напряжения & Тип монтажа | L12 = Rated voltage ≤12kV; A = Standard outdoor terminal |
| POLT-12D | Серия продуктов | POLT = RAYCHEM heat-shrink power cable terminal series; 12D = 12kV outdoor type |
- Основные параметры спецификации
| Категория параметра | Технический индекс | Примечания |
| Основные характеристики | ||
| Тип продукта | Heat-shrink Power Cable Terminal | Outdoor installation, polymer insulation system |
| Бренд | TE Connectivity RAYCHEM | POLT series, industry standard product |
| Применимый тип кабеля | 3-core polymer insulated power cable | Изоляционный материал: XLPE, ЧП, ЭПР, и т. д.. |
| Номинальное напряжение | ≤12kV (U0/U=8.7/15kV) | Соответствует МЭК 60502-2 |
| Cable Shield Type | Copper Wire Shield | Not applicable for copper tape shielded cables |
| Conductor Specification | ||
| Applicable Conductor Section | 70-120мм² | Copper conductor |
| Conductor Outer Diameter | 14.0-22.0мм | Single core conductor diameter |
| Insulation Outer Diameter | 25.0-35.0мм | Single core insulation diameter |
| Overall Cable Outer Diameter | 55.0-75.0мм | Outer diameter of complete 3-core cable |
| Физические характеристики | ||
| Total Terminal Length | 450мм | Standard outdoor type length |
| Material Composition | Cross-linked Polyolefin Heat-shrink Material | Weather resistance, устойчивость к ультрафиолетовому излучению, aging resistance |
| Цвет | Черный | Industrial standard color, anti-UV |
| Способ установки | Heat shrink installation | Special heating tool required (≥300℃) |
| Условия окружающей среды | ||
| Рабочая температура | -40°C ~ +90°C | Широкий температурный диапазон, подходит для суровых условий |
| Защита от проникновения | IP68 | Полностью пыленепроницаемый и водонепроницаемый, operable under immersion |
| Weather Resistance | Соответствует МЭК 60811-3-1 | устойчивость к ультрафиолетовому излучению, ozone resistance, chemical corrosion resistance |
| Электрические характеристики | ||
| Сопротивление изоляции | ≥10¹⁴Ω | Normal condition, ensure excellent insulation performance |
| Диэлектрическая прочность | ≥45kV/1min | Breakdown strength of terminal insulation layer |
| Частичный разряд | ≤10pC | Under 1.73U0 voltage, maintain low partial discharge level |
| Creepage Distance | 630мм | Meet pollution level requirements for 12kV class |
- Список аксессуаров & Монтажные детали
| Номер детали. | Имя | Функция | Q’ty |
| 3XIH1-L12A Main Kit | Heat-shrink Tube Assembly | Provide insulation, sealing and stress control | 1 Набор |
| Stress Control Tube | Non-linear Heat-shrink Tube | Uniform electric field distribution, eliminate electric stress concentration | 3 шт. (1 per core) |
| Insulation Tube | Main Insulation Heat-shrink Tube | Main insulation protection | 1 ПК (для 3 cores) |
| Sealing Tube | Waterproof Sealing Heat-shrink Tube | Seal the joint between cable outer sheath and terminal | 1 ПК |
| Shed | Anti-pollution Flashover Heat-shrink Shed | Increase creepage distance and anti-fouling performance | 3 шт. |
| Copper Mesh / Grounding Wire | Shield Grounding Wire | Ground connection for cable shielding layer | 1 Набор |
| Filling Mastic | Insulation Filling Material | Fill gaps between cores, improve insulation performance | 1 ПК |
| Cleaning Cloth / Sandpaper | Surface Treatment Tools | Clean cable insulation surface, improve adhesion | 1 Набор |
| Руководство по установке | Руководство по эксплуатации | Detailed installation steps and precautions | 1 Copy |
- Конкурент & Межбрендовый эквивалент
| Бренд | Запасная модель | Похожие функции | Различия |
| АББ | APIT-12/3-70-120 | 12kV 3-core, 70-120мм, copper wire shield | Cold-shrink technology, не требуется подогрев, более высокая стоимость |
| 3М | 5623P-12 | 12kV 3-core, 70-120мм, copper wire shield | Cold-shrink type, простая установка, permanent elasticity |
| Чангюань | WS-12/3.2 | 12kV 3-core, 70-120мм, copper wire shield | Heat-shrink type, экономически эффективный, high domestic market share |
| Walsin | WRS-12/3-70-120 | 12kV 3-core, 70-120мм, copper wire shield | Heat-shrink type, material performance close to RAYCHEM |
| RAYCHEM Internal Replacement | 3XIH4-L12A | 12kV 3-core, 150-240мм, copper wire shield | For larger conductor section, same terminal length |
- Рекомендации по выбору & Решения по замене
5.1 Ключевые параметры выбора
| Параметр | Ключевые моменты выбора | Рекомендуемый стандарт |
| Согласование напряжения | Must match cable rated voltage | 12kV terminal for 8.7/15kV cable; not for higher voltage class |
| Основной номер | Terminal core number shall be consistent with cable | 3-core terminal only for 3-core cable, not for single-core or 4-core |
| Conductor Section | Terminal range must cover cable conductor section | 70-120mm² terminal applicable to 70、95、120mm² cables |
| Тип щита | Terminal must match cable shield type | IH for copper wire shield; OH for copper tape shield |
| Среда установки | L type for outdoor; I type for indoor | Outdoor site must adopt L type with sheds |
5.2 Рекомендации по замене
Mismatched conductor section: Select corresponding range model, например. 150-240mm² use 3XIH4-L12A
Different shield type: Copper tape shield cable adopt 3XOH1-L12A
Внутренняя установка: Choose 3XIH1-I12A (without sheds)
Easier installation requirement: Adopt RAYCHEM cold-shrink terminal (RST series), no heating tool needed
5.3 Меры предосторожности при применении
- Check cable insulation condition before installation to ensure no damage and no moisture.
- Strictly follow installation manual; control heating temperature at 300-350℃ and heating time.
- Clean and polish core insulation surface tightly to ensure close fitting of heat-shrink tube.
- Reliably connect shielding grounding wire to guarantee electrical safety.
- Perform insulation test and partial discharge test after installation; put into operation only after qualified.
- Applicable for overhead, tunnel, cable trench and other outdoor / semi-outdoor occasions; not suitable for underwater use.
- Типичные сценарии применения
10kV/12kV distribution line outdoor cable terminals
12kV cable outgoing terminals of substation & switch station
12kV internal power distribution cable terminals for industrial enterprises
12kV cable terminals for new energy projects such as wind power & photovoltaic power generation
12kV cable terminal replacement & renovation of urban power grid
