marine battery requirements

The marine environmental technical conditions that marine batteries must comply with include the following points:

Adaptable to vibration and shock. Vibration can loosen fixed or connecting parts of electrical equipment, causing structural damage or failure of components. Therefore, it is necessary to have anti-loosening measures, vibration reduction or isolation measures, and have a strong vibration-resistant and impact-resistant mechanical structure.

Accommodates tilt and rocking. Continuous tilting and rocking destroy the balance of forces in the normal resting position and generate additional forces on moving parts, causing equipment failure or damage.

Adapt to ambient temperature. Ambient temperature has a significant impact on the performance and service life of electrical equipment. Ambient temperature includes air temperature and sea water temperature.

Adapt to moisture, salt spray, oil mist and mold environments. Humidity, salt spray, oil mist and mold in the ambient air reduce the insulation performance of electrical equipment insulation materials and cause rust and corrosion of metal parts. Moist salt spray forms a moist leakage film on the surface of the insulation material. Under hot and humid conditions, mold secretes organic acids, exacerbating the moisture on the surface. Oil mist and dust adhere to the surface, which increases surface leakage, hinders heat dissipation and increases temperature. Moist water molecules penetrate into the cracks and capillary pores of the insulating material, increasing the leakage current and causing the insulation resistance to decrease. Damage to many electrical equipment is often caused by thermal breakdown of insulating materials. Therefore, marine cables, wires, windings, etc. must use insulation materials with higher heat resistance levels that are resistant to moisture, salt spray, and mold, and materials with good flame retardancy, good mechanical strength, and corrosion resistance.

Adapt to changes in ship power grid voltage and frequency. The ship's power system is an independent limited power grid. Both voltage and frequency are affected by load changes, so the change range of voltage and frequency is specified, and it must be able to work effectively within this range.

Protection requirements. In order to prevent electrical equipment from malfunctioning or being damaged due to the intrusion of external solid and liquid foreign matter, thereby causing fire hazards, general electrical equipment should have protective enclosures.

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