METAR TRAY
METAR TRAY
Perforation Base Area
METAR straight cable tray has the following perforation
base area:
The cross sectional areas given in the table above
exclude return flanges where appropriate – see the
following illustration for the cross section which is
included as part of the area calculation.
6.
For medium duty return flange cable tray:
0.9mm for tray of widths 50mm to 225mm,
1.2mm for tray of width 300mm (1.0mm for pregalvanized
and stainless steel)
1.5mm for tray of widths 450mm to 900mm.
Perforation Base Area for METAR Cable Tray
Tray Type
Perforation Base Area
Medium Duty Return Flange
9.14%
Heavy Duty Return Flange
Classification to
BS EN 61537
B
Consult our Design Team for cross-sectional area
information for METAR cable tray fittings.
9.14%
Consult our Design Team for perforation base area
classifications for METAR cable tray fittings.
Cross-sectional Area
The METAR cable tray has the following cross-sectional
areas (CSA):
Cross-sectional Area for METAR Cable Tray
Width
CSA mm 2
50
Tray Type
1040
75
1628
100
2215
150
3390
Medium Duty
200
4565
Return Flange
225
5153
300
10440
600
13965
750
The following is a typical specification for a cable tray
system which incorporates the key features of the
METAR cable tray system.
The inside of the cable tray shall present a smooth
surface to allow for easier cable pulling and to
minimise the opportunities for damage to the
cable insulation.
17490
900
21015
50
2290
75
3503
100
4715
150
7140
Heavy Duty
200
225
10778
300
14415
450
21690
600
28965
750
For medium duty return flan