How to Test the Reliability of New Fully Dry Optical Cables

ZR Cable has developed and designed a series of test methods in this paper, which is convenient for a more reasonable qualitative analysis of the credible performance of this new type of all-dry fiber optic cable. The following are some potential functional tests considered in the text:

1. Did the powdered SAP epoxy resin fall out of the waterproof casing? Will it pollute the office environment or have physical and mental health and safety hazards?

2. Compared with other all-dry optical cables, how does this optical cable actually operate during the continuation?

3. Can the optical fiber be reasonably coupled with the waterproof casing to ensure that the remaining length of the optical fiber is stable and even in the whole process of application?

4. Will SAP powder particles scratch the optical fiber coating?

5. The actual effect of water blocking in some extreme natural environments, including the actual effect of water blocking in salt water?

6. For example, under the freezing standard below zero, what is the additional attenuation coefficient of the fiber after the SAP is hygroscopic and frozen?

7. With the brittleness of the optical cable, its physical properties change

2.1 Will SAP powder fall down, pollute the office environment and harm physical and mental health?

Although the amount of SAP epoxy resin in the loose waterproof casing is very small, there will also be potential risks. Will the SAP powder fall off the environment and pollute some sensitive equipment or harm the sensitive body The physical and mental health of quality groups? The test method for SAP powder drop characteristics is given. a) SAP powder drop detection

This test is used to simulate the probability of the SAP powder falling off in the continuous operation process of the fiber optic cable installer. At the same time, a fully dry fiber optic cable with water-blocking cotton yarn was selected as a comparison, because the water-blocking cotton yarn fully dry fiber optic cable has been in use since 2000 and has proven to be reliable.

The length of the optical cable test sample is 2 meters, the two sides are open, and the test sample is dropped vertically from the 15cm aspect ratio into the pre-weighed clean container. The first test sample is dropped vertically for 5 times. Subsequently, the collected net weights are weighed. At the same time, the same detection as the water-blocking cotton yarn fully dry optical cable is applied. Test results: 0.1mg precision balance scale was used for weighing, SAP full dry optical cable and water blocking yarn full dry optical cable two samples, the net weight of the collection container did not change before and after, and there was no powder falling. Therefore, it is possible to distinguish between the two and it is not easy for the environment to pollute the office environment. b) Physical and mental health and safety factor assessment

Although the SAP powder is not easy to fall out of the waterproof casing, the SAP powder will be touched in the continuous operation process. Therefore, it is necessary to further detect whether the SAP powder has risks in terms of physical and mental health and safety. . This test is conducted by a third-party platform testing organization to assess the environmental sanitation and physical and mental health of SAP powdered industrial production.

The purpose of this scientific research is to clarify the inhalable particulate matter concentration value of SAP in the three links of the all-dry fiber optic cable processing method. There are 3 links in the optical cable connection. The first link is to strip the optical cable and remove the waterproof casing; the second link is to remove the waterproof casing and prepare for optical fiber splicing in advance; the third link, the upper part of the installation area. In order to simulate the worst case, the total number of continuous optical cables in this test is 2.5 times that of the normal continuous natural environment. Respiratory system dust samples were collected and connected to a sampling pump of 2.2 liters per minute using a BGI airflow. Test samples were collected into acid-cleaned 2 μmptfe filter units. The statistical analysis method of the OSHA ID125G sample was selected. The test results of this scientific study are given in the table:

It is concluded that the concentration of inhalable dust in the car box during the experiment is far less than the concentration limit value strongly recommended by the manufacturer. Therefore, the continuous operation process of this type of optical cable cannot be harmful to physical and mental health.

2.2 Continuation of SAP full dry optical cable

According to the application of SAP, the water-blocking cotton yarn can be removed, the specifications of the waterproof casing can be reduced, and the continuous high efficiency can be improved in an all-round way. This scientific study compares the following categories of continuous natural environments, fiber optic cable termination, midway exit, loose waterproof casing connection, fusion splice tray and fiber optic splice box. Standardized gadgets and operating procedures, in accordance with the manufacturing industry standards and regulations, prepare the optical cable connection work in advance, and take the average time for evaluation. Compare the preparation time of the two kinds of fully dry fiber optic cables using water-blocking cotton yarn and SAP epoxy resin. The preparation time for the continuation of these two kinds of all-dry optical cables is very long. As everyone knows, the SAP loose waterproof casing processing method has the obvious advantages of displaying information, the bending half-length is smaller, the bending is more flexible, and it is not easy to bend.

ZR Cable focuses on the research and development and sales of optical fiber communication products. Optical communication products include standard product optical cables, optical fiber jumpers Cables, mpo/mtp data centers, optical fiber distribution frames, etc., at ZR Cable you can buy all optical communication products in one stop.