سدادات عزل مخروطية داخلية
القسم الأول. نظرة عامة على المنتج
سدادات عازلة للمخروط الداخلي هي مكونات عزل مانعة من النوع المخروطي الداخلي مصممة خصيصًا لأنظمة توزيع الطاقة متوسطة وعالية الجهد 10 كيلوفولت/35 كيلوفولت. تتميز ببنية قابلة للتوصيل/السحب من النوع المخروطي الداخلي، وهي متوافقة للاستخدام المباشر مع مقابس العزل المخروطية الداخلية رقم 1#/2#/3# لإغلاق الواجهات المخروطية الداخلية غير المستخدمة، وتحقيق العزل الكهربائي، والحماية المانعة، والتأريض الآمن. تمنع مخاطر الصدمات الكهربائية والوميض الناتجة عن الواجهات المكشوفة، وتعمل كملحقات حماية سلامة حرجة لواجهات معدات توزيع الطاقة.
القسم الثاني. ميزات المنتج
الأداء الكهربائي والعزل
Manufactured via integral injection molding using high-purity silicone rubber with no seams or air gaps, providing excellent insulation performance capable of withstanding rated voltages and short-term overvoltages in 10kV/35kV systems, with sufficient insulation margin and partial discharge level ≤10pC (at 1.5U₀).
An integrated electric field optimization structure uniformly distributes the electric field at the interface, effectively suppressing partial discharge. Long-term operation presents no risk of electrical erosion or breakdown, ensuring stable and reliable insulation performance.
An integrated grounding insert provides reliable grounding, effectively dissipating interface-induced voltages and fault currents to enhance system safety.
The insulating surface is treated using a specialized process to achieve high surface resistivity and strong hydrophobicity, effectively preventing surface flashover caused by condensation or contamination, and improving insulation reliability in harsh environments.
الميزات الهيكلية والسلامة
Standardized inner taper plug-in/pull-out interface design strictly conforms to GB/T 12706 and IEC 60840 standards, offering universal interchangeability with 1#/2#/3# inner taper insulating sockets with strong compatibility, adapting to distribution equipment interfaces of various specifications.
The one-piece structural design allows direct insertion into the mating socket to achieve interface insulation sealing — no additional tools are required, installation is straightforward, and live-line operation is possible.
Anti-misinsertion and anti-misconnection design ensures interface dimensions are uniquely matched, permitting connection only to the corresponding specification socket to prevent cross-use of accessories of different specifications. An integrated positioning lock structure prevents loosening and disengagement after installation.
The fully insulated, touchable structure features high outer insulation strength, allowing the housing to be touched directly during operation without risk of electric shock, ensuring the safety of operations and maintenance personnel.
الأداء البيئي ومقاومة العوامل الجوية
Excellent weather resistance adaptable to wide-temperature environments from -40°C to +90°C, with no degradation in rubber elasticity or insulation performance at high or low temperatures, and no risk of cracking or embrittlement, suitable for both outdoor and indoor applications.
Moisture-proof, waterproof, pollution-resistant, and salt-fog resistant with IP67 protection rating, enabling long-term stable operation in harsh environments including humid, dusty, and salt-fog conditions, resistant to rain and condensation ingress.
مقاوم للشيخوخة، ومقاوم للأشعة فوق البنفسجية، ومقاوم لتآكل الأوزون، مع عمر خدمة يتجاوز 30 عامًا، وتشغيل خالٍ من الصيانة، وتكاليف تشغيل وصيانة منخفضة على المدى الطويل.
الميزات الميكانيكية والتوافق
High mechanical strength with impact and vibration resistance capable of withstanding mechanical stresses during transportation, installation, and operation, with no risk of deformation or damage, and a seismic resistance rating of Grade 8.
Available in three sizes — 1#/2#/3# — compatible with inner taper insulating sockets of different voltage and current ratings, offering broad versatility.
Modular design allows individual plug-in/pull-out replacement; interface sealing or opening can be performed without de-energization, significantly improving operations and maintenance efficiency and reducing outage losses.
القسم الثالث. المعايير الفنية
| فئة المعلمة | عنصر | المواصفات الفنية |
| Applicable System Parameters | الجهد الاسمي للنظام (Un) | 10kV/35kV |
| الجهد المقنن (Ue) | 12kV/35kV | |
| الجهد التشغيلي الأقصى (Um) | 17.5kV/40.5kV | |
| التردد المقنن (fn) | 50 هرتز/60 هرتز | |
| | جهد تحمل التردد الكهربائي | 42kV/5min (12kV), 95kV/5min (35kV), no breakdown, no flashover | |
| | جهد تحمل النبضات البرقية | 95kV (12kV peak), 200kV (35kV peak), no breakdown, no flashover | |
| | مستوى التفريغ الجزئي | ≤10 بيكو كولوم (عند 1.5U₀) | |
| المعلمات الهيكلية والمادية | مادة الجسم | EPDM ethylene propylene diene monomer rubber (insulating layer); tin-plated copper/aluminum (grounding insert) |
| | تصنيف الحماية | IP67 | |
| معيار الواجهة | Inner taper interface conforming to GB/T 12706 and IEC 60840 standards | |
| | Size Series | 1#, 2#, 3# (compatible with sockets of different voltage/current ratings) | |
| | Mating Sockets | 1#/2#/3# inner taper insulating sockets | |
| المعايير البيئية | ارتفاع التطبيق | ≤2000 متر (تخصيص للارتفاعات العالية متاح) |
| | درجة الحرارة المحيطة | -٤٠ درجة مئوية إلى +٩٠ درجة مئوية (درجة حرارة التشغيل)، -٤٠ درجة مئوية إلى +٧٠ درجة مئوية (درجة حرارة التخزين) | |
| | الرطوبة النسبية | ≤100% (غير متكثف) | |
| | تصنيف مقاومة الزلازل | الصف الثامن | |
| المعايير المطبقة | GB/T 12706، IEC 60840، GB/T 11022، DL/T 404 |
Section IV. Scope of Application
Applicable voltage levels: 10kV/35kV AC medium- and high-voltage power distribution systems, compatible with distribution equipment having a maximum operating voltage of 17.5kV/40.5kV.
المعدات والسيناريوهات المطبقة:
Sealing of unused inner taper insulating socket interfaces in distribution equipment such as 10kV/35kV switchgear, ring main units, and compact substations;
Interface safety protection for urban distribution network cable lines, industrial and mining enterprise distribution systems, and distribution equipment at renewable energy (photovoltaic/wind power) step-up substations;
Interface insulation isolation for distribution equipment in indoor/outdoor distribution rooms, underground utility tunnels, cable tunnels, and other multi-scenario applications.
Functional purpose: To seal unused inner taper interfaces in distribution equipment, achieving insulation isolation, sealing protection, and safety grounding, preventing risks of electric shock, flashover, and moisture ingress caused by exposed interfaces, and ensuring the safe and stable operation of distribution equipment.
القسم الخامس. ظروف التشغيل
ظروف التشغيل العادية
الارتفاع: ≤2000م
Ambient temperature: -40°C to +90°C, with equipment operating temperature conforming to relevant standards;
الرطوبة النسبية: ≤100% (غير متكثف)
الظروف البيئية: خالية من الغازات المسببة للتآكل، والوسائط القابلة للاشتعال أو الانفجار، والاهتزازات أو الصدمات الشديدة؛
Installation method: direct insertion into the mating inner taper insulating socket; both horizontal and vertical installation are acceptable, and the installation space must meet plug-in/pull-out operational clearance requirements.
ظروف التشغيل الخاصة (يتطلب تخصيصًا)
ارتفاع يتجاوز 2000 متر؛
درجة الحرارة المحيطة خارج النطاق من -40 درجة مئوية إلى +90 درجة مئوية؛
Severe contamination, salt-fog, or chemical corrosion environments;
ظروف تشغيل ذات اهتزاز عالٍ أو صدمات عالية؛
Non-standard inner taper interface specifications;
Special grounding requirements or high pollution class applications.
القسم السادس. التركيب والصيانة
متطلبات التثبيت
Before installation, inspect the product appearance for cracks, damage, and voids, and verify the insulating surface is undamaged; confirm that grounding inserts are intact with no corrosion or deformation.
Clean the inner wall of the mating inner taper insulating socket and the plug surface, removing grease, dust, and foreign matter to ensure the interface is dry and clean.
Apply a uniform coat of dedicated silicone grease lubricant to the outer wall of the plug interface to prevent damage to the insulating layer during installation.
Slowly push the plug into the mating socket until fully seated; engage the positioning anti-withdrawal device; after installation, verify there is no looseness or tilting.
After installation, verify that the interface seal is reliable with no risk of air leakage or moisture ingress; perform an insulation resistance test if necessary, and commission only upon satisfactory results.
متطلبات الصيانة
Periodically inspect the plug appearance for cracks, discharge marks, and contamination accumulation; verify that the connection to the socket is secure with no looseness, and that sealing components show no aging or damage.
اختبر مقاومة العزل بشكل دوري للتأكد من أن الأداء يلبي المتطلبات وتحديد الأعطال المحتملة في الوقت المناسب.
Clean the plug surface to remove dust and contamination, keeping the insulating surface dry and clean, and avoiding exposure to grease and chemical corrosion.
If abnormalities such as cracks, damage, discharge, or overheating occur on the plug or mating socket, immediately take the unit out of service and replace it; continued operation with known defects is strictly prohibited.
Plug-in/pull-out operations must be performed using dedicated insulating operating tools; bare-hand contact with energized interfaces is strictly prohibited, and all operations must strictly comply with power distribution safety regulations.
القسم السابع. الاحتياطات
The product must be installed, commissioned, and maintained by qualified electrical personnel holding medium- and high-voltage distribution construction credentials; operation by unqualified personnel is strictly prohibited.
The product must be used only with the corresponding specification of inner taper insulating socket; cross-matching with sockets of different voltage levels or different specifications is strictly prohibited, as this will result in insulation failure and safety incidents.
The plug must not be disassembled or modified without authorization, as this will void the warranty and safety assurance; forced installation or removal using non-dedicated tools is strictly prohibited.
During installation, damage to the insulating surface is strictly prohibited; silicone grease lubricant must be applied uniformly to avoid compromising insulation performance and sealing effectiveness.
During storage, the product must be kept in a dry, ventilated, and cool environment, away from direct sunlight, high temperatures, humidity, and compression; contact with sharp objects that could damage the insulating layer is strictly prohibited.
When performing plug-in/pull-out operations on energized interfaces, all power distribution safety regulations must be strictly observed and adequate safety protective measures must be in place; unauthorized operations are strictly prohibited.
القسم الثامن. تسمية الطراز
| اسم الطراز | وصف |
| 1#/2#/3# | Size series designator, compatible with inner taper insulating sockets of different voltage and current ratings respectively |
| سدادات عزل مخروطية داخلية | Inner taper insulation plug, integrally injection-molded from EPDM rubber, used for insulation sealing and safety protection of inner taper interfaces |
القسم التاسع. المعايير والشهادات المعمول بها
International standard: IEC 60840 “Power cables with extruded insulation and their accessories for rated voltages above 30kV (Um=36kV) up to 150kV (Um=170kV) — Test methods and requirements”;
المعايير الوطنية: GB/T 12706 "كابلات الطاقة ذات العزل المبثوق وملحقاتها للجهود المقدرة من 1 كيلوفولت (Um=1.2 كيلوفولت) إلى 35 كيلوفولت (Um=40.5 كيلوفولت)"، GB/T 11022 "المواصفات المشتركة للجهد العالي switchgear ومعايير معدات التوزيع والتحكم"، DL/T 404 "معدات التوزيع والتحكم المعدنية المغلقة بجهد 3.6 كيلوفولت إلى 40.5 كيلوفولت بتيار متردد"؛
لقد اجتاز المنتج اختبارات النوع من قبل المركز الوطني للإشراف والفحص على جودة الأجهزة الكهربائية ذات الجهد العالي ويتوافق مع معايير السلامة الكهربائية الوطنية.
القسم العاشر. خدمة ما بعد البيع
فترة ضمان المنتج: 18 شهرًا من تاريخ التصنيع، أو 12 شهرًا من تاريخ التشغيل، أيهما أقرب؛
Free repair or replacement for product quality issues during the warranty period;
الدعم الفني، وإرشادات التركيب، وخدمات التخصيص (مواصفات خاصة، وتكييفات لظروف تشغيل خاصة) متوفرة.
ملاحظات التوثيق
The technical parameters in this manual are based on standard operating conditions. Special operating conditions require customization based on actual requirements; the product technical agreement and type test report shall prevail.
ملحق: رسم تخطيطي للمنتج
