■ Technical Background
Underwater engineering, such as in the ocean, is usually carried
out in waters of hundreds or even thousands of meters. In addition
to the necessary hardware instruments and facilities, this type of
operation also requires the use of cables for transmitting power
and signal control; the requirements for cables used in this
environment are often very harsh, and ordinary cables have the
following disadvantages...
On the one hand, since the operation is on the water, in order to
ensure the insulation of the cable, the number of insulation layers
of the cable will be increased, so the cable will become very
heavy;
on the other hand, the cables used in most engineering equipment
cannot float in the water. In this way, when the engineering
equipment moves forward, the more the cable falls underwater, the
more the burden on the mobile engineering equipment is increased,
and it is easy to cause the two ends of the cable to fall off; in
addition, the cable is submerged in water, which greatly reduces
its visibility. When dragging, it is easy to be damaged by
organisms or rocks in the water, and the damage cannot be observed
in time.
Therefore, there is an urgent need for a cable that can float on
the water, has good softness, ideal mechanical strength, and good
water-blocking performance for underwater operations. Therefore,
our company designs and produces floating cables to meet market
demand. Highly flexible, resistant to folding and bending, excellent
waterproof performance, and resistant to seawater corrosion. It can
be designed and produced to withstand large mechanical external
forces. The elastomeric polyurethane material is highly
wear-resistant, maintains flexibility at low temperatures, and has
stable compressive resistance. It has been proven to be safe and
reliable and can be used in a variety of occasions.
flexible floating cables"
Floating cable structure | Multiple strands of oxygen-free bare copper wire (please specify if
tinned wire is used), refer to VDE 0295 class 6/IEC 60228 class 6
standard; |
| Special modified PVC mixture/HDPE/TPEE/TPE/ETFE and other material
insulation; |
| Optimize the cable twisting pitch to meet the requirements of
underwater operation movement; |
Integrated components: (optional) mobile optical fiber, power
cable, signal cable, video cable or mobile network cable, air duct,
etc.
Tensile components: (optional) tensile steel wire rope or Kevlar
fiber;
Reinforcement layer: composite Kevlar reinforcement layer;
Shielding layer: (optional) high bending resistance tinned wire
braided shielding, with better anti-electromagnetic interference
performance; |
| Special PUR polyurethane foam, corrosion-resistant and
hydrolysis-resistant. Customized sheath color is supported |
■ Technical index parameters
Working voltage: 0.6/1kV and belowTest
voltage : 2500VInsulation resistance: ≥20MΩ/km (20℃) Bending radius
---Mobile installation: 7.5*D
---Fixed installation: 4*DWorking
temperature: -40 ℃~+90℃ No harmful substances: RoHSElectromagnetic compatibility: Complies with the Electromagnetic Compatibility
Directive (EMC) Flame retardant properties: Refer to VDE 0472-804 Part B test standard, and IEC 60332-1
