1. Electricity detection

Mainly include conductive DC resistance, insulation resistance, product voltage experiment, and voltage experiments between the insulation line core. Each item is important. The conductor resistance directly reflects the electrical transmission function of the cable, which directly affects the temperature, life, voltage, voltage, voltage, voltage, voltage, voltage, voltage, voltage, and voltage of the cable. Downsifying and running safely, it mainly examines the material and cross -sectional area of the conductor. If the material of the conductor is not good or the cross -sectional area is severe, it will cause serious excess of the DC resistance of the conductor. This cable will increase the current on the line on the line. The loss of the time causes the cable conductor itself to heat up, cause the insulation and aging cracking of the covered conductor, causing the electricity supply line leakage, short circuit, and even the fire, which endangers the safety of personal and property. The specifications have strict rules for the DC values of the conductors of different specifications, and must not be greater than the values of the normative rules.

Insulation resistance, product voltage experiment, and insulation line voltage experiment, all examine the electrical insulation function of the cable insulation layer and the sheet layer. The insulation resistance is the resistance of the insulation data between the two conductors. To the effect of insulation protection. Product voltage experiments and insulation line voltage experiments not only require the cable to have the ability to satisfy the insulation, but also require the insulation or condom data to be uniform impurities without impurities, the thickness of the thickness, and the on surface. Local breakdown during pressure -resistant experiments.

2. Mechanical function detection

It is mainly to examine the resistance of insulation and sheet plastic data, cracking and elongation rate, including before and after aging, as well as curvature experiments, bending experiments, load -heavy core experiments, insulating core tear experiments, and insulation lines of product soft cables. Static song scratching experiments. The long -aged and back -up strength, the elongation of the aging before and after the aging is an important basic goal of the cable insulation and the sheath data. It is required to be used as a cable insulation and protective cover. There must be a certain degree of flexibility. Aging refers to the ability to adhere to its original function under high temperature conditions, and the aging should not seriously affect the resistance and elongation of the data. These will directly affect the cables. For the service life, if the strength of the tension is not qualified, the cable is installed and installed in the cable, or the shentholes and insulation used in the light and hot environment are easy to appear. Cracking, causing the charged conductor to be naked and the danger of electric shock.

Because other soft cables are not fixed, there are repeated dragging, bending, etc. in use, so the soft cable specifications and other rules are added to their product cables for dynamic curvature and bending experiments, load -heavy core experiments, insulation insulation experiments, insulation insulation Core ripping experiments, static curlers, etc. to ensure that this cable meets the requirements in actual use. For example, when the dynamic curvature experiment is mainly to assess the soft cable when the external mechanical stretching and bending stress, whether the tuning wire wire of the soft guide is cracking and reduces the transmission function of the power, or the insulation electrical function is reduced; the insulation is in the insulation; Activity method is an experimental method for whether it is deforming or cracking to affect the electrical insulation function of the cable.

3. Experimental experiments of insulation and protective data data

Including heat loss, heat shock, high temperature pressure, low temperature bending, low temperature stretching, low temperature impact, flame retardant function, etc. These are the functions of the plastic data of insulation and protective cover. For example, heat loss experiments are the degree of data degradation and volatile after 7 days of high temperature aging of 7 days; Whether the insulation surface of the winding is cracking; the high temperature pressure detection insulation data is persistent after being cooled through the high temperature; all low-temperature experiments generally refer to the changes in the mechanical function under -15 ° C. Whether it becomes crispy, cracking or easy to break in the low temperature environment.

  The flame retardant function of other cables is very important. The experiment to examine this function is a non -delay experiment, that is, the special flames installed according to the specified product cable ignite a certain time. After the flames are out, check the cable after the flame is extinguished by itself. The burned situation, of course, the less the burned part, the better, clarify that its combustion is poor, the flame retardant is good, and the safer.