A cable shield is used to manage electromagnetic coupling around the conductors. Constructions may use foil, braid, or a combination of both.
A cable name alone does not determine whether shielding is needed. Consider the signal, route, nearby power cables and the system’s termination requirements together.
Shielding is an important construction difference between LIYY and LIYCY. Matching conductor sizes do not make them interchangeable in every application. Check manufacturer datasheets and equipment termination instructions.
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