Sejak 2001, Shenheng Power telah menjadi pengeluar peralatan penghantaran dan pengagihan kuasa yang bertauliah, menyampaikan penyelesaian elektrik yang boleh dipercayai di peringkat global.
Disokong oleh sistem selepas jualan yang lengkap, kami menyediakan perundingan teknikal pakar, panduan produk dan perkhidmatan OEM & ODM yang fleksibel untuk projek anda.
Network planners selecting a load break switch inside an RMU must separate normal load switching duty from fault-making and fuse/breaker protection roles before comparing outdoor cable-ring quotations.
This load break switch guide focuses on practical procurement and layout controls for the package below. Pair the checklist with the approved single-line for load-break-switch-rmu-selection-guide — ia tidak menggantikan kelulusan utiliti atau perunding.
A load break switch is sized for switching load current under defined conditions — it is not automatically a short-circuit interrupter. Ring schemes often combine load break ways with fuse-switch or circuit-breaker functions on transformer feeders.
Write the functional role of each way on the single-line so vendors cannot substitute a look-alike cubicle with the wrong duty class.
Bacaan berkaitan: ring main unit RMU selection guide dan outdoor ring main unit cable entry planning.
| Selection input | Network risk if vague | Pemilik |
|---|---|---|
| Rated voltage / insulation | Wrong clearance class | Network SLD |
| Load break current rating | Unsafe switching duty | Operating study |
| Short-time / fault-making rating | Cubicle damage on faults | Kajian kerosakan |
| Number of ring / tee ways | Wrong enclosure footprint | Feeder plan |
| Cable type and entry direction | Civil trench rework | Cable design |
| SF6 / alternative gas notes | Handling & environmental compliance | HSE / ops |
| Motorization / remote control | SCADA interface gap | Automation team |
Penting: For load break switch, freeze these inputs on a controlled revision before normalizing commercial bids; late changes cascade into civil, protection, and factory drawings — align with Amalan piawaian IEC dan nota sumber pihak berkuasa projek.
Outdoor RMUs need gland plates and bending radii that match MV cable specs. Grounding continuity between tank, cable screens, and the earthing grid should be verified before backfill.
If SF6 is used, retain handling, leak-check, and end-of-life recovery notes in the O&M pack — treat them as controlled environmental documents.
| Item | Tujuan | Hantar dengan sebut harga |
|---|---|---|
| Way function matrix (LBS / fuse / CB) | Duty clarity | Yes — locked |
| Rated currents and fault duties | Network match | Yes — study refs |
| Cable entry GA and gland schedule | Civil interface | Yes — before PO |
| Gas type and handling procedure | HSE compliance | Yes — with O&M |
| Interlock and earthing notes | Safe operation | Yes — ops sign-off |
| Routine test certificates | Factory evidence | Yes — FAT list |
| Remote / motor option datasheet | SCADA integration | If specified |
Lampirkan jadual ini pada setiap semakan RFQ supaya vendor memulangkan pakej teknikal yang boleh dibandingkan dan bukannya petikan katalog.
Verify mechanical operation of each load break way, earthing switch position indications, and cable sheath bonds. Record gas pressure (where applicable) against the nameplate band.
Do not close onto a live ring until protection on tee-offs is proven and the operating sequence is filed with the control room.
For many load break switch scopes, begin engineering review with Shenheng Power’s SF6 gas insulated ring main unit (RMU) catatan katalog yang didokumenkan pada halaman produk.
Had aplikasi: Untuk load break switch (load-break-switch-rmu-selection-guide), anggap halaman katalog yang dipautkan sebagai titik permulaan kejuruteraan sahaja. bukan Beku load break switch perolehan apabila kajian kerosakan projek, susut nilai altitud, atau sampul kelulusan utiliti melebihi penarafan yang diterbitkan pada halaman produk tersebut.
If the load break switch study points to a different scheme or rating for load-break-switch-rmu-selection-guide, browse the halaman kategori dan hantar bahan kajian melalui Hubungi Kuasa Shenheng.
Load break covers defined load-current switching; fault-making and interrupting duties require ratings proven for short-circuit conditions.
Freeze ring and tee ways on a function matrix tied to the network plan before requesting enclosure GA drawings.
When compact outdoor footprints and proven gas-insulated modules fit the site — still subject to local environmental handling rules.
Short-time withstand and any fault-making claims must match prospective fault levels at the installation point.
Gland plate size, entry direction, and bending radius mismatches with trenches or ducts.
Leak-check procedures, recovery requirements, and O&M references should travel with the equipment dossier.
Shenheng Power Equipment Co., Ltd.
