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The perturbing presence of electromagnetic fields is responsible for numerous malfunctions in equipments operation. To eliminate these disturbances it is necessary both to reduce the electromagnetic radiation of electronic devices and to immunize them from the fields present in their operating environment. These requirements can be achieved by efficient shielding the source of the electromagnetic field and the receiver. The paper aims to develop new textile shield with spatial architecture, high shielding effectiveness, low manufacturing costs, shape diversity, mechanical elasticity and facile mounting. The shield were made by knitting and have a 3D spatial structure, with two external layers and an internal connection layer made with different combinations of conductive and non-conductive fibres.

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Each electrical appliance has its own pattern of using the electricity. Identifying these patterns can lead to a disaggregation of the entire electricity consumption. This disaggregation, brought to the user, offers a better understanding on how the electricity is consumed inside his home. Also the information obtained from this process brings to the user the power to detect possibilities to reduce its consumption and also its electrical bills, in the context of a world where prices are getting higher each day. This paper presents a new algorithm which detects electrical consumers based on power consumption. The system successfully detects two-state (on-off) and also multi-state devices. Keywords-load detection; nonintrusive load monitoring; electric load signatureI.