Single vs Dual power cable insulation
Single vs Dual power cable insulation
(OP)
Can anybody tell me what is the difference between single layer Medium Voltage cable insulation and the dual layer MV cable insulation? And which type is better/ more utilized in the power industry?






RE: Single vs Dual power cable insulation
RE: Single vs Dual power cable insulation
I need to know this to decide wheather to put in cable specs or not. Just need some explanation why this be necessary. Thanks
RE: Single vs Dual power cable insulation
RE: Single vs Dual power cable insulation
RE: Single vs Dual power cable insulation
You summarized it correctly in that the 2-layer design is used for the combination of durability and flexibility. It has become the industry standard. I don't believe anyone buys the single layer design anymore.
RE: Single vs Dual power cable insulation
See:
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High density PE is thermoplastic PE and I think is not fire retardant at all. Usually High Density PE is still used for Underground High Voltage cables [I think Pirelli still does some time]as insulation.
The upper [outer] layer it is actually only a jacket and has poor insulation properties but has to be mechanically resistant as magoo2 already said,in order to be able to be pulled through conduits and ducts, for instance. If the cable is PVC made-for example- then the inner compound will be insulation and with good electrical properties and the jacket a good mechanical properties-so it is not the same compound.
Medium and High Voltage cables are provided also with a jacket but is not directly in contact with the insulation since they are many other layers-semiconducting layers and metallic shields and fillers and water barrier and other.
RE: Single vs Dual power cable insulation
Bill
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"Why not the best?"
Jimmy Carter
RE: Single vs Dual power cable insulation
But I hear you waross.
Thank you all though. I will follow the KISS principle.
( Keep It Simple Stupid )