请说明标准明称
Multi-element metallic
cables used in analogue
and digital
communication and
control —
Part 4-1: Sectional specification for
screened cables characterised up to
600 MHz — Horizontal and building
backbone cables
BS EN
50288-4-1:2003
http://www.dxdlw.com/loadoo.asp?Rname=zhaogy2006&IID=55184
Multi-element metallic
cables used in analogue
and digital
communication and
control —
Part 4-2: Sectional specification for
screened cables characterised up to
600 MHz — Work area and patch cord
cables
BS EN
50288-4-2:2003