Electric cables. Calculation of the current rating. Current rating equations (100% load factor) and calculation of losses - Sheath eddy current loss factors for two circuits in flat formation1 Scope This section of IEC 2871 provides a method for calculating the eddy current losses in the metallic sheaths of single core cables arranged as a three phase double circuit in flat formation. The sheaths are bonded at one point or are cross bonded so that there are no significant sheath circulating currents. Where metallic sheaths are bonded at both ends there are significant circulating currents which result in a lower current carrying capacity.

dimensions etc

BS EN 10028-1:2017 supersedes BS EN 10028-1:2007+A1:2009

BS 6001-1 provides you with a technique to determine the acceptance or rejection of a lot or population based on several defective parts found in a random sample drawn from the lot

To prevent hazardous situations it is necessary that gas extinguishing systems and their accessories are designed and built according to technical standards

BS 3900-0 has been fully revised to include the principal changes

ISO 14090 on adaptation to climate change guidelines is useful for:

Sheltered housing

commercial and light-industrial environments for which no dedicated product or product-family immunity standard exists

4 GHz to 2

It specifies the requirements and test methods for surgical drapes and gowns

ISO/IEC 29112 prescribes the following:

Tolerances on flatness for plate/sheet obtained from cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip