If you want to power submersible pump to pump water from under water tanks or from wells or for other pumping purposes, you need to use a specially made submersible cable that connects the pump to the power source. There are only a few wiring styles that can be used for this. One of the best cables for this purpose is a 4 core round cable. You should however not go for the first 4 core round cable you come across – there are several considerations to make.

The 4 core round cable used should also be such that it does not corrode and it should be protected against abrasion. There should be core insulation on top of heavy duty thermoplastic rubber. Consider the purpose for which you are buying the cable. This is because 4 core round cables come in different dimensions for different purposes. Consider having a professional such as an electrical engineer determining the best possible 4 core round cable for your particular circumstances.

Consider the manufacturer from which you are buying from. The company should be credible and reliable. You can determine credibility and reliability by considering how long the manufacturer has been in business. You could also determine credibility and reliability by consider the registration of the manufacturer with the relevant regulatory bodies and by considering whether there are complaints with the relevant consumer protection agencies (such as the Better Business Bureau in the U.S.). Consider the views of those who have previously used a 4 core round cable from the company you are considering as expressed in customer testimonial and in online discussion forums. The best source of information on good manufacturers of 4 core round cables and other cables such as 3 core flat and H07RN-F rubber cables is independent reviews. These reviews are advantageous in that they give you firsthand information. These reviews give you the pros and the cons of different cables by different manufacturers, allowing you not only to compare different cables, but also to compare different manufacturers.

Consider whether the manufacturer is doing research and development since this is proof that the 4 core round cable and other products are high quality. Consider whether the company has a strict delivery schedule. This is particularly important if you are running a business since failure to stick to deadlines could lead to cost overruns and costly delays. In most cases, these cables are supplied in wooden reels, in corrugated boxes and in coils. The cable ends should be sealed with BOPP, a self-adhesive tape, and with non-hygroscopic sealing caps so that they are protected from moisture.

When making the choice of a 4 core round cable, consider the testing under which it has undergone. The manufacturer should have been awarded ISO 9001:2008 certification for its quality system. The tests as per IS: 8130:1984 that should be done include conductor tests such as conductor resistance and conductor elongation tests, poly aluminum laminate tests such as peel strength tests, and PVC compound/polyethylene/polymers tests. The manufacturer should be willing to do tests on your request. The best place to buy 4 core round cable and other cables is over the Internet.

Relemac Gupta is the author of this article on Rubber. Find more information on 3 Core here.