What is BS IEC 60853-3 - Cycling and emergency current rating of cables about?
BS IEC 60853-3 is part of IEC 60853 on calculation of cyclic and emergency current rating of cables. BS IEC 60853-3 gives a method for calculating the cyclic rating factor, for cables of all voltages, where partial drying out of the surrounding soil is anticipated.
The method outlined in BS IEC 60853-3 is based on one of the three methods published in a CIGRE1 document.
The method is applicable to any type of cable, but it is recommended that it should be applied only to installations of one multi-core cable or to three single-core cables or to groups of circuits where the inter-circuit spacing is sufficient to permit free vertical movement of soil moisture between the zones of dry soil associated with each circuit. BS IEC 60853-3 does not preclude the use of other methods of calculation where full details of the load cycle are not known.
In BS IEC 60853-3 it is assumed that the entire region surrounding a cable or cables has uniform thermal characteristics prior to drying out; the only non-uniformity being that caused by drying. Consequently, the method given in BS IEC 60853-3 is not applied, without further consideration, to installations where special backfills, having properties different from the site soil, are used.
Who is BS IEC 60853-3 - Cycling and emergency current rating of cables for?
BS IEC 60853-3 on cycling and emergency current rating of cables is useful for:
- Electrical engineer
- Manufacturer of winding wire
- Manufacturer of heavy electrical equipment
- Manufacturer of electrical appliances
- Power Distribution companies
- Quality assurance officer
Why should you use BS IEC 60853-3 - Cycling and emergency current rating of cables ?
While designing and manufacturing electrical equipment it is important to rate components for informing customers. This in turn can ensure safety from misuse of equipment.
BS IEC 60853-3 provides guidelines for calculating the cycling rating factor for all voltage, where partial drying out of the surrounding soil is anticipated. Use of BS IEC 60853-3 increases credibility of the manufactured cables and helps manufacturers and suppliers adhere to the guidelines to increase safety of the cables and electrical appliances.
BS IEC 60853-3 helps users to stay aware of the capabilities of the machine they are using and thus stay safe. BS IEC 60853−3 also makes it easier for the user to choose the right product for themselves based on their requirements.
