BS EN IEC 60332-3-23:2018 Tests on electric and optical fibre cables under fire conditions Test for vertical flame spread of vertically-mounted bunched wires or cables. Category B

Electric cables
Approval testing
Surface spread of flame
Fire tests
Vertical
Flame propagation
Electric wires
Bundled conductors
Type testing
Fibre optic cables

Link: BS EN IEC 60332-3-23:2018 Tests on electric and optical fibre cables under fire conditions Test for vertical flame spread of vertically-mounted bunched wires or cables. Category B
Source: BSI Standards