Standard: TU ZJ PTT 021-14566
CONSTRUCTION:
Conductor: soft annealed copper wire diameter of 0,4 mm; 0,6 mm and 0,8 mm, class 1
(EN 60228)
Insulation: foamed polyethylene with a thin layer of solid polyethylene, foam-skin PE
(EN 50290-2-23).
Colour code:
1. first quad: a-red, b-black, c-blue, d-orange
2. for direction: a-green, b-black, c-blue, d-orange
3. odd: a-gray, b-black, c-blue, d-orange
4. even: a-yellow, b-black, c-blue, d-orange
5. quad: a-white, b-black, c-blue, d-orange
(colour of 5. quad only for group stranding)
Twisting elements: star quads
Cable core: group (G) or concentrically stranded
Filling: compound with drop point above +70C
(EN 50290-2-28)
Core wrapping: paper or other non-hygroscopic dielectric material
Inner laminated sheath: aluminium tape covered on both sides with a layer of
copolymer-ethylene and firmly glued with PE sheath (EN 50290-2-24).
Armour: two steel tapes (as mechanical protection)
Outer sheath: PE sheath (EN 50290-2-24).
Sheath colour black, RAL 9005 (UV protection).
APPLICATION:
In local network for subscriber lines, laid
directly into cable ducts or into the ground.
Cables are used in situations where is required good mechanical protection.
The permissible temperature range:
– during installation: from -5°C to +50°C
– during operation: from -30°C to +50°C
