Shanghai Echu Wire & Cable Co.,Ltd |
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The NYY cable range includes NYY-J and NYY-O cables. These are
widely used European power and control cables designed for fixed
wiring installation with a voltage rating of 600/1000V. They can be
safely deployed in most applications where mechanical stresses are
not anticipated – indoors, outdoors, direct burial underground, in
concrete, or submerged in water. When NYY cables are required to
comply with the UK wiring regulations BS7671 for burial in the
ground, they require installation in a conduit or duct to provide
protection against mechanical damage. They are not suitable for
installation in concrete which is shaken, vibrated or compressed.
NYY-J & NYY-O cable construction
Conductor Up to 95mm2: solid copper (Class 1)
25mm2 and above: stranded copper (Class 2)
Insulation Polyvinyl Chloride (PVC) Type DIV4
Filler PVC
Sheath Flame retardant PVC Type DMV5 (FR-PVC)
The construction of the NYY-O differs from the NYY-J in that it
doesn't have a green/yellow earth wire.
These black NYY cables have a UV-stabilised outersheath making them suitable for direct exposure to sunlight. They have an operating temperature range of -15oC to +70oC when fixed and -5oC to +50oC when flexed.