33kV outdoor ground‑mounted overhead‑connected switchgear, rated current 800‑2000A, short‑circuit breaking current 20‑31.5kA, O‑0.3s‑CO‑15s‑CO operating sequence, non‑oil design for UK‑style distribution network.
This PDF technical‑specification document defines technical requirements for outdoor ground‑mounted overhead‑connected medium‑voltage switchgear, used for tender specification drafting, supplier qualification evaluation and project technical review.
The equipment shall comply with ENA TS 41‑36 Issue 3, together with referenced BS‑EN standards including BS EN 60137:2017, BS 7671:2018+A4:2026, BS EN 60529:1992, BS EN 50522:2010 and BS EN 61936‑1.
This specification specifies non‑oil insulation‑interruption requirement, cabinet IP45 protection degree, minimum 900 mm bushing creepage distance, bushing terminal cantilever load requirement, two‑stage SF₆ gas pressure alarm & interlock logic, auxiliary‑terminal construction rules, internal wiring colour‑coding rules, X/R ratio requirements for short‑circuit duties, M2 mechanical‑endurance and E2 electrical‑endurance classification.
It includes four appendices covering technical‑specification sheet, project‑specific addendum, pre‑commissioning & periodic maintenance requirements and supplier information‑checklist, requiring suppliers to submit completed datasheets, drawings, maintenance manuals and type‑test evidence.
Low‑maintenance oriented design is required; customised project‑specific adjustments are permitted under defined variation rules. Please contact us for completed filled‑in specification sheets and full type‑test documentation.
IP45 berarti terlindungi dari debu dan terlindungi dari semprotan air bertekanan rendah, cocok untuk pemasangan luar ruangan jangka panjang dengan pintu kabinet tertutup. Silakan hubungi kami untuk penjelasan mengenai derajat perlindungan selubung.
Sinyal tahap pertama memicu alarm peringatan dini; tahap kedua memicu alarm beserta interlock operasi untuk mencegah penyaklaran saat tekanan gas isolasi tidak mencukupi. Silakan hubungi kami untuk panduan pengaturan pemantauan gas.
Hal ini melarang penggunaan media isolasi atau pemutus berbasis minyak, sehingga mengharuskan adopsi solusi vakum atau SF6, serta menghilangkan risiko kebakaran akibat kebocoran minyak. Silakan hubungi kami untuk perbandingan media isolasi.
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