Lead‑time: 35‑90 days; higher‑cost compared with EAC‑DoC.
3. High‑Voltage Transformer＞1‑kV for Russian market (No EAC available)
Governing law: Russian Federal Law‑2425‑FZ and Government Resolution №982
You have to apply for GOST‑R PCT certification, split‑into GOST‑R‑DoC and GOST‑R‑CoC:
6‑35kV power‑transformers & HV instrument‑transformers: GOST‑R‑DoC is acceptable, submit test‑reports from Russia‑approved labs, factory‑audit is usually waived;
110‑220kV ultra‑high‑voltage transformers: GOST‑R‑CoC is mandatory, sample‑testing + on‑site factory‑audit + yearly surveillance‑audit.
Applied Russian GOST standards:
Power‑transformer: GOST‑R‑IEC‑60076‑1‑2013, GOST 11677‑85;
Instrument‑transformer CT/PT: GOST‑R‑IEC‑61869‑2‑2017, GOST‑7746‑2015;
Climate‑condition test: GOST‑15150‑69 (‑50℃ XL version for Russian‑Siberia projects);
EMC‑standard: GOST‑CISPR‑11‑2015;
Fire‑safety test for oil‑immersed transformer: GOST‑31565‑2012;
Additional compulsory requirement: Instrument‑transformers for Russian national‑grid need Rosstandart state‑metering registration, only GOST‑R‑PCT certificate cannot pass grid‑acceptance.
Important limitation: Russian GOST‑R‑PCT certificate is only accepted inside Russia, Kazakhstan and Kyrgyzstan customs will not recognize GOST‑R, you have to apply GOST‑K for Kazakhstan and GOST‑KG for Kyrgyzstan separately for HV‑transformers＞1kV.
4. Central‑Asian‑Countries certification overview for HV‑transformers＞1kV
Kazakhstan (EAEU‑member): GOST‑K (ST‑RK) certification, long‑term‑certificate requires factory‑audit, Russian GOST‑R‑reports are not‑accepted directly; instrument‑transformers need Kazakhstan state‑metering registration.
Kyrgyzstan (EAEU‑member): Short‑term one‑batch delivery can apply Uvedomleniye (exemption‑letter only for customs clearance). For national‑grid‑project you need GOST‑KG‑CoC with factory‑audit and local‑metering registration.
Uzbekistan: GOST‑UZ(Oʻz‑DSt); Russian‑GOST‑R reports are just reference‑documents; long‑term‑certificate requires local‑lab‑testing and factory‑audit plus UzNIM‑metering registration.
Azerbaijan (Non‑EAEU‑country): AZS‑CoC mandatory‑certificate for both LV and HV‑transformers, EAC‑certificate is invalid for Azerbaijan market.
5. Practical advice for your export‑project‑2026
If you only export ≤1kV low‑voltage transformers: one‑set EAC‑DoC or EAC‑CoC covers all five EAEU‑countries, no separate national‑certificate needed;
If you supply high‑voltage transformers＞1kV: apply independent‑certificates country‑by‑country: GOST‑R‑Russia + GOST‑K‑Kazakhstan + GOST‑KG‑Kyrgyzstan + GOST‑UZ‑Uzbekistan + AZS‑CoC‑Azerbaijan; these certificates are mutually‑independent;
Complete full‑set GOST‑IEC‑60076‑1 / IEC‑61869‑2 tests in Russia‑authorized labs first, Tajikistan and Azerbaijan can accept these reports and reduce repeated‑testing costs.
I can prepare English‑version document‑check‑list for EAC‑DoC, EAC‑CoC, GOST‑K and GOST‑UZ if you require.
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上海经合海关联盟EAC认证中心 上海经合工业设备检测有限公司 电话：021-36411293 021-36411223 地址：中国上海浦东新区高科东路777号1号楼2017 邮箱: eac@cu-tr.org gost-r@163.com skype: gostchina 手机和微信WeChat：18621327282，18621862553 www.cu-tr.org www.gost.org.cn
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