This document provides information about GOST IEC 60331-21-2011, which contains procedures and requirements for testing electric and optical fiber cables under fire conditions to maintain circuit integrity. Specifically, it applies to cables with rated voltages up to and including 0.6/1.0 kV. Contact Russiangost.com to request a copy of this standard in various languages including Russian, English, German, Italian, French, Spanish, Chinese, and Japanese. They provide electronic PDF and MS Word versions as well as hardcopy editions for immediate download or purchase.

1. GOST IEC 60331-21-2011
Tests for electric and optical fibre cables under fire conditions. Circuit integrity. Part 21. Procedures and requirements. Cables of
rated voltage up to and including 0,6/1,0 kV
ГОСТ IEC 60331-21-2011
Испытания электрических и оптических кабелей в условиях воздействия пламени. Сохранение работоспособности. Часть
21. Проведение испытаний и требования к ним. Кабели на номинальное напряжение до 0,6/1,0 кВ включительно
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