For low voltage installations, short circuit proof installation means one of the following methods:— bare conductors mounted on isolating supports— single core cables (i.e., conductors with both insulation and overall jacket) without metallic screen or armour or braid, or with the braid fully insulated by heat shrink sleeves in both ends— insulated conductors (wires) from different phases kept separated from each other and from earth by supports of insulating materials, or by the use of outer extra sleeves— double insulated wires or conductors.
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