SEC SPECIFICATION FOR SURGE ARRESTERS FOR 13.8KV AND 33KV MEDIUM-VOLTAGE OVERHEAD DISTRIBUTION NETWORK

This PDF is SEC utility technical specification for 13.8kV‑33kV overhead‑network surge arresters, intended for EPC contractors, bidders and design‑institutes for tender response, gap‑analysis and technical evaluation. This gapless metal‑oxide surge arrester complies with IEC 60099‑4 and SEC local project specifications.

It covers two classes: heavy‑duty with 20kA short‑circuit rating and riser‑pole type with 31.5kA short‑circuit rating, 10kA nominal discharge‑current, 60Hz system, defined MCOV and residual‑voltage values.

Adopting UV‑resistant high‑temperature vulcanized grey silicone‑rubber one‑piece housing with hydrophobic property, non‑acceptable cold‑curing sealant for sealing‑system; equipped with drop‑off disconnector for visible failure indication, full stainless‑steel metallic terminals and hardware, supplied together with NEMA‑type insulating bracket and hot‑dip‑galvanized cross‑arm mounting‑hardware for vertical installation.

The specification defines marking requirements, routine / type / witness‑test rules from approved laboratory, sampling‑inspection, packing, 5‑year product warranty, and complete tender‑phase & post‑award document‑submission requirements including compliance matrix, type‑test reports, CAD drawings, user‑manual and technical‑data‑schedule.

Custom‑configuration and project‑specific factory‑acceptance‑test can be implemented to satisfy utility mandatory clauses for Middle‑East high‑solar‑radiation overhead‑distribution‑projects. Please contact us for compliance‑check template and full‑set qualification documents.