The purpose of the screen and Semi-conductive layer on MV Cables

The purpose of the screen and Semi-conductive layer on MV Cables

In most modern MV cables, especially underground, cables are shielded or screened with an earthing conductor. The screen consists of lapped copper tape or metallic foil usually less than 1mm in thickness, which is the interface between the conductor and the insulation (PVC, XLPE). The main purpose of this conductive screen is to maintain a uniformly divergent electric field and contain the electric field within the cable core.

How Power Factor Correction Can Save Your Business Money

Power factor correction (PFC) is an often-overlooked component in large electrical installations. It measures how effectively your business uses power by assessing the ratio of real power (kW) to apparent power (kVA). Real power is the amount of power which is actually used by your onsite equipment (kW) whereas apparent power is the total amount of power (kVA) supplied to the site by the utility.

Why Effective Electrical Maintenance Can Save you Money

Unexpected downtime can be an expensive. When an electrical fault occurs, it occurs rapidly, often resulting in major damage to electrical assets. This leaves your business inoperable and vulnerable to the costs associated with downtime and loss of production.  By integrating an effective electrical maintenance program, you can ensure unexpected downtime does not happen. In […]

How to Protect HV Underground Cables

Underground high voltage cables are a great innovation to the electrical distribution industry. While they make an installation look more visually pleasing than the overhead systems currently being utilized, they are often exposed to scenarios which are overlooked by electrical designers and engineers. It is common practice to protect your cables from mechanical damage via […]
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