IEC 60332-3-21：Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables
IEC 60332-3-21：Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables
IEC 60332-3-21：Tests on Electric Cables Under Fire Conditions - Test Standard：
IEC 60332-3-21：Tests on Electric Cables Under Fire Conditions - Part 3-21: Test for Vertical Flame Spread of Vertically-Mounted Bunched Wires or Cables - Category A F/R
IEC 60332-3-21：Tests on Electric Cables Under Fire Conditions - Scope:
The series of International Standards covered by Parts 3-10, 3-21, 3-22, 3-23, 3-24 and 3-25 of IEC 60332 specifies methods of test for the assessment of vertical flame spread of vertically mounted bunched wires or cables, electrical or optical, under defined conditions.
IEC 60332-3-21：Tests on Electric Cables Under Fire Conditions - Test conditioning：
- conditioned at a temperature of (20 ± 10)°C for at least 16h before commencing the test.
IEC 60332-3-21：Tests on Electric Cables Under Fire Conditions - Sample required：
- minimum length of 3.5 m.
IEC 60332-3-21：Tests on Electric Cables Under Fire Conditions - - Relative Standard：
- IEC 60332-3-10: Tests on electric cables under fire conditions – Part 3-10: Test for vertical flame spread of vertically-mounted bunched wires or cables – Apparatus
- IEC 60695-4:Fire hazard testing – Part 4: Terminology concerning fire tests
- IEC 60811-1-3: Insulating and sheathing materials of electric cables – Common test methods Part 1: General application – Section 3: Methods for determining the density – Water absorption tests – Shrinkage test
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