Flame Tests for Electrical Cables
UL 1581 Section 1060 (FV-1 / Vertical Flame and FT1 Test)
| Description | UL 1581, § 1060 (Cable Flame Test) |
| Length of specimen | 17.99 - 24.02 in. (457 - 610 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 | vertical |
| Position of flame | 20° to vertical specimen |
| Duration of flame | 5 x 15 seconds with least 15 seconds flaming break |
| Conditions | The paper must be no more than 25% carbonized. The specimen may continue burning for a maximum of 1 minute after each application. Any material that drops must not ignite the cotton (B) placed beneath the specimen. |
| UL 1581 Section 1060 (FV-1 / Vertical Flame and FT1 Test) Setup |
 |