UL 1666 Riser Flame Test
(https://www.cabledatasheet.com/gallery/74_29_10_24_12_44_18.jpeg)
https://www.anixter.com/content/dam/Anixter/Guide/7H0011X0_W&C_Tech_Handbook_Sec_11.pdf
(https://www.cabledatasheet.com/gallery/74_29_10_24_12_46_44.jpeg)
https://www.b3cable.com/images/technical-library/know-how/file9.pdf
https://www.charlottewire.com/files/PDF/Technical%20Section/990072_Flame%20Tests%20_IEEE_%20MSHA_%20NFPA_%20and%20UL_.pdf