Technical Specifications · ROCKWILL

SEC Specifications for 11‑33 kV MV Special‑Use Smart RMU

13.8‑38 kV outdoor special‑use smart ring‑main‑unit, 630A rated current, SF6/Air insulation, integrated RTU with cyber‑security, multi‑protocol, supports ATS function for 60 Hz distribution‑automation projects.

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Updated2026.09

LanguageEnglish

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Saudi Electricity Company(SEC)up to 33kV MV SPECIAL USE SMART RMU

Document description

This document is SEC’s utility‑grade procurement specification for outdoor smart switchgear, aimed at EPCs, tenderers and design institutes for tender response and pre‑award review.

It references prevailing IEC series standards plus SEC local project requirements, defines mechanical construction, interlock rules, sensor configuration, cyber‑security mechanism, bilingual marking, witness‑testing rules, warranty terms and full bid‑phase document deliverables.

It supports customised layout, auxiliary‑function tuning and project‑specific FAT for hot‑climate distribution projects. Contact us for compliance check templates and complete qualification files.

Frequently asked questions

What test activities are mandatory for equipment under this SEC utility s

Mandatory items include full‑scope witnessed type‑test from SEC‑approved laboratory, 100 % unit‑wise routine‑test, pre‑production sample‑verification, and factory‑acceptance‑test witnessed as required. Please contact us for test‑item‑checklist.

What are the core cyber‑security obligations for RTU defined in this utility specification?

RTU shall enforce application whitelisting, time‑stamped audit‑logging, role‑based access‑control, complex‑password policy, encrypted protocols and secure device recovery, with full vulnerability remediation during service life. Please contact us for cyber‑security‑compliance advice.

What unique functional benefits does ATS‑capable smart ring‑main‑unit bring for distribution‑automation?

It supports independent automatic transfer‑switch function for multi‑source power switching, managed by dedicated BCU/IED, with alarm feedback to control centre, improving power‑supply reliability for important distribution‑feeders. Please contact us for function‑configuration guidance.

SEC Specifications for 11‑33 kV MV Special‑Use Smart RMU

Document description

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SEC Specifications for 11‑33 kV MV Special‑Use Smart RMU

Document description

Related Products

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SEC Specifications for 11‑33 kV MV Special‑Use Smart RMU