Flame Tests for Electrical Cables

UL 1581 Section 1100 (FT2 / FH / Horizontal Flame)

Description UL 1581, section 1100 - reference to standard UL 2556, section 9.1
(FT2 / FH / Horizontal Flame)
Length of specimen 9.84 - 11.81 in. (250 - 300 mm)
Burner Bunsen burner with additional air supply (Tirril gas burner) Ø 0.37 in. (9.5 mm)
Test temperature 500 W flame
Position of specimen horizontal
Position of flame 20° to vertical specimen
Duration of flame 30 seconds
Conditions The sample must not sustain damage exceeding 100 mm. Any material that drops must not ignite the cotton (B) placed beneath the specimen.
UL 1581 Section 1100 (FT2 / FH / Horizontal Flame) Setup
UL 1581 Section 1100