RVV cable is mainly used in medium and light mobile appliances, instruments, household appliances, power lighting and other flexible use places, can transmit control signals, can also transmit power signals, and is also suitable for laying in the bridge and hose.

The letter R stands for cord

The letter V stands for insulator Polyvinyl chloride (PVC)

rvv wire is a cable commonly used in weak current systems, the number of core wires is variable, two or more, there is a PVC sheath outside, and the arrangement between the core wires is not special requirements.

Machinery industry standard:

JB/T8734.3-2012 Polyvinyl chloride insulated cables, wires and cords with rated voltages up to and including 450/750V - Part 3: Flexible wires and cables for connection

National standard:

GB/T5023.5-2008 Part 5 Flexible cable (wire) rated voltage 450/750V and below polyvinyl chloride insulated cable

Test requirements:

RVV refers to the multiple strands of copper core flexible wire, the logo on the outside view, the comparable thickness of the cortex and the wire core. The cortex is usually a polychlorinated material. The copper core is 19 strands stranded. Specifications are generally 1, 1.5, 2.5 square millimeters. In looking at the length of the line (a circle of 100 meters), the national standard line 95-100 meters, the non-standard line about 90 meters.

In any case, whether it is a few strands of cable, the outer diameter and jacket size are one of the important data that needs to be tested, and the current automated production mode is obviously not enough to meet the testing needs. Through the automatic detection of online calipers, it has been the mainstream outside diameter detection mode.



Single-axis calipers are mainly used in the following positions:

1. Wire core

The copper core can be detected, the copper core is one of the important parts of the cable, the resistance value is related to its own quality, and the outer diameter size is also related to a certain extent.

2. Single strand cable

Single strand cable is the foundation, will not follow the single strand cable to complete high-quality production, conducive to the quality of cable.

3. Cable size

The cable is the finished product of the RVV cable, and the cable shown to the customer is also a cable, which is more convenient for customers to spot check, so its quality detection can not be less.

The single axis caliper is used to measure the outer diameter, and the combined thickness measuring system of the double caliper can be used to measure the thickness of the jacket. Applied to various locations that need to detect the outside diameter, of course, in addition to the function of detecting the outside diameter, they also have the function of controlling the outside diameter.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable, computer cable, BV wire and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098