450/750V Copper Conductor PVC Insulated Control Cable

1. Standard
The control cable can be produced according to the standard GB9330-1988, and the factory can also manufacture the cables in accordance with other standards.
2. Scope of Application
The control cable are suitable for the wiring of electrical controlling equipments and instrument, monitoring and controlling return circuit, electrical protection and measurement in power distribution unit under the circumstance that the rated voltage is up to 450/750V AC.
3. Type& Specification
See the following table
4. Service Conditions
(1)The long-time working temperature of conductor of PVC insulated cable is 70oC
The long-time working temperature of conductor of XLPE insulated cable is 90oC
(1) The temperature for laying the cables can not be lower than 0oC. Permissible bending radius(r): Unarmoured cable: R≥ 6D; (D: Outer diameter of the cable); Armoured or copper-tape screened cable: R≥ 12D; Shielded flexible cable: R≥ 6D 




1. Standard
The control cable can be produced according to the standard GB9330-1988, and the factory can also manufacture the cables in accordance with other standards.
2. Scope of Application
The control cable are suitable for the wiring of electrical controlling equipments and instrument, monitoring and controlling return circuit, electrical protection and measurement in power distribution unit under the circumstance that the rated voltage is up to 450/750V AC.
3. Type& Specification
See the following table
4. Service Conditions
(1)The long-time working temperature of conductor of PVC insulated cable is 70oC
The long-time working temperature of conductor of XLPE insulated cable is 90oC
(1) The temperature for laying the cables can not be lower than 0oC. Permissible bending radius(r): Unarmoured cable: R≥ 6D; (D: Outer diameter of the cable); Armoured or copper-tape screened cable: R≥ 12D; Shielded flexible cable: R≥ 6D 

Optical Spherical Lenses

Spherical lenses include plano-convex lenses, bi-convex lenses, plano-concave lenses, bi-concave lenses, achromatic lenses, spherical lenses, and half ball lenses.

Lens is the most basic optical element that composes the microscope optical system. The objective lens, eyepiece, condenser and other components are composed of single and multiple lenses. According to the difference of its shape, it can be divided into two categories: convex lens (positive lens) and concave lens (negative lens).

Lenses can be widely used in various fields such as security, automotive, digital cameras, lasers, optical instruments, etc. With the continuous development of the market, lens technology has become more and more widely used. (Lens) The lens is made according to the law of light refraction. A lens is an optical element made of transparent materials (such as glass, crystal, etc.). The lens is a refracting lens, and its refractive surface is a transparent body with two spherical surfaces (part of the spherical surface), or one spherical surface (part of the spherical surface) and one plane. The images it forms have real and virtual images.

Double-Convex Lens,Plano Convex Lens,Bi-Concave Lens,Achromatic Lenses

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