IEEE 1580-2001 pdf download IEEE Recommended Practice for Marine Cable for Use on Shipboard and Fixed or Floating Platforms
5. Cable construction
5.1 Conductors
5.1.1 General
The conductors should be of soft annealed copper wire. All conductors should be tinned or alloy coatedwhere necessary to ensure compatibility with primary insulation.
5.1.2 Composition
Conductors should be manufactured in accordance with the most current edition of following AmericanNational Standards: ASTM B3 B8 B33B172B173 B174 B189 nd B496
Metric conductors meeting IEC 60228 are also allowed.
5.1.3 Stranding
The construction requirements and nominal resistance of standard Class B concentric conductors are founcin Table 10. Combination stranded, compressed stranded to a reduction in diameter of 3% maximum of concentric stranded conductors, flexible stranded conductors, or conductors as described in Table ll may besubstituted for Class B concentric stranded conductors. Compact stranded conductors may not be used inareas subjected to vibration or fexing
5.1.4 Separator
Where required to ensure free stripping, a suitable separator tape may be applied to the conductor.
The separator shall be colored or shall be opaque to make the separator clearly distinguishable from theconductor once the insulation is removed. The color shall be other than copper, silver, green, or green andyellow and shall be solid. striped. or in some other pattern.
5.2 Conductor shielding
Conductor shielding should be used on conductors of cables rated above 2000 V
Conductor shielding should be an extruded semiconducting compound to a minimum thickness of0.305 mm, The semiconducting compound should have an operating temperature equal to or greater thanthat of the overlying layer of insulation, It should be firmly bonded to the overlying layer of insulation withno protrusions into the insulation exceeding 0.254 mm, A semiconducting nonmetallic tape with a minimumthickness of 0.0635 mm may be used over the conductor and under the extruded semiconducting layer.
Extruded conductor shielding should have a maximum volume resistivity of 100 000 2cm at room temper.ature and at the maximum normal operating temperature of the cable. Extruded conductor shielding shouldmeet the following requirements when tested according to procedure in UL 1072 or NEMA WC 74.
IEEE 1580-2001 pdf download
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