Zhongtian Technology Submarine Cables Co Ltd lands the first prize of the Jiangsu Province Enterprise and R&D Institution Innovation Case Competition. [Photo/ntfabu.com]

Two Nantong companies placed among the 20 top winners at the first Jiangsu Province Enterprise and R&D Institution Innovation Case Competition that concluded on Oct 13.

Zhongtian Technology Submarine Cables Co Ltd landed the first prize while Jiangsu Shentong Valve Co Ltd won the excellence award.

Zhongtian Technology Submarine Cables Co Ltd is a subsidiary of ZTT Group, a leading global manufacturer of cable systems based in Rudong county, Nantong.

The team of Zhongtian Technology Submarine Cables illustrated their cross-linked polyethylene insulated submarine optical cable system, which has the world's highest voltage (500kv). The breakthrough involved dozens of senior technical experts improving the raw material technology processes of 118 pieces of equipment over the course of two months, during which 68 trial production tests were conducted.

After 23 days of stable production along with the efforts of hundreds of workers, the company successfully produced the world's first highest-grade submarine optical cable. The project was then handed over to the Zhoushan Green Petrochemical Base to support the infrastructure construction carried out there by the State Grid Corporation of China. The cable system functioning proved to be stable, according to Hu Ming, chief engineer at Zhongtian Technology Submarine Cables.

At present, Zhongtian Technology's 500kV submarine cable products have obtained independent intellectual property rights. The company owns 13 authorized invention patents and 15 utility model patents, has published seven papers, participated in the formulation of four national standards, and taken part in the compilation of a book related to the technology.

This year, the Key Laboratory of Marine Energy and Information Transmission of Jiangsu Province set up by the company received project support from the Jiangsu Provincial Department of Science and Technology.

Jiangsu Shentong Valve Co Ltd stood out among the participants for accomplishing the goal of "strengthening management, optimizing resources, collaboration & innovation, and opening & sharing".