bendingradii_1227548493
DESCRIPTION
cable dataTRANSCRIPT
R
TECH
NIC
AL
INFO
RM
ATION
SOUTH EASTErith (Head Office)
Tel: 01322 441165Fax: 01322 440492
SOUTH WESTBristol
Tel: 0117 966 6333Fax: 0117 953 3602
MIDLANDSBirmingham
Tel: 0121 313 2870Fax: 0121 313 3415
NORTHLeeds
Tel: 0113 2533565Fax: 0113 253 6373
EASTERNPeterborough
Tel : 01733 558485Fax: 01733 56 2 0 1 5
NORTH WESTManchester
Tel: 01204 793111Fax: 01204 797977
WALESCardiff
Tel: 02920 450044Fax: 02920 464724
General Information
Minimum Internal Radii of bends for cables subject to flexing and of bends in cables for fixed wiring - low voltage
MINIMUM INTERNALRADIUS OF BEND(TIME OVERALL
DIAMETER OF CABLE)
OVERALL DIAMETERFINISHINSULATION
Minimum internal radii ofbends for flexible cablesand flexible cords in a fixedsituation.
Minimum internal radii ofbends for flexible cablesand flexible cords and subject of flexing.
Minimum internal radii ofbends in cables for fixed wiring
Not exceeding 10mm
Exceeding 10mm but notexceeding 25mm
Exceeding 25mm
Not exceeding 25mm
Exceeding 25mm
Not exceeding 25mm
Exceeding 25mm
Not exceeding 10mm
Exceeding 10mm but notexceeding 25mm
Exceeding 25mm
Any
Not exceeding 12.5mm
Exceeding 12.5mm but notexceeding 20mm
Exceeding 20mm but notexceeding 30mm
Exceeding 30mm but notexceeding 50mm
Exceeding 50mm
Any
Not exceeding 30mm
Exceeding 30mm but not exceeding 50mm
Exceeding 50mm
Any
2
3
4
6
8
8
10
3
4*
6*
6*
8†
10†
12†
15†
18†
12
12†
15†
18†
6
Non-metallic sheath and / ortextile braid
Non-metallic sheath and / ortextile braid
Non-metallic sheath withtextile reinforcement screenor flexible armour ‡
Non-armoured(excluding smooth aluminiumsheath)
Armoured (excluding smooth aluminium sheath)
Smooth aluminium sheathwith or without armour
Lead or corrugatedaluminium sheath with orwithout armour
Smooth aluminium sheathwith or without armour
Copper sheath with orwithout PVC covering
Rubber, PVC or XLPE
Rubber, PVC or XLPE
Rubber , PVC or XLPE
Impregnated paper
Mineral
At temperatures approaching 0°C, standard grade PVC becomes rigid and brittle, therefore, care should be taken when bending cables at low temperature.
* For circular conductors only. For shaped conductors, the minimum bending radius factor is 8. Otherwise this table applies to bothcircular and shaped conductors.
†The factors applied are applied to the diameter over the aluminium sheath.‡Armoured flexible cables are suitable for use over reels or pulleys only when the movements are slow and intermittent.