British Standards Institution - Committee

If you have difficulty in submitting comments on draft standards you can use a commenting template and email it to admin.start@bsigroup.com. The commenting template can be found here.

We use cookies to give you the best experience and to help improve our website

Find out what cookies we use and how to disable them

EPL/51 - (Disbanded 11.02.26 see ISE/108) Transformers, inductors, magnetic components and ferrite materials

Sector: Manufacturing

Categories: Components. Magnetic | Magnetic materials

Overview: Under the direction of the Standards Policy and Strategy Committee, is responsible for the UK input to the work of IEC/TC51 and CLC/SR 51

Committee standards activity

In Progress (16)

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PNW 51-1512 ED1:	Magnetic powder cores Guidelines on dimensions and limits of surface irregularities - Part 9: Ellipse-cores Categories: Information management \| Standardization. General rules Proposal begins : 2024-07-15	Proposal
PNW 51-1427 ED1:	High frequency inductive components - Electrical characteristics and measuring methods - Part 3: AC loss measured by sinusoidal wave of inductors for DC-to-DC converters Categories: Information management \| Standardization. General rules \| Engineering \| Electrical engineering \| Components. Electrical equipment \| Components. Magnetic Proposal begins : 2022-12-13	Proposal
New Work Item Proposal 51-1603 ED1:	Ferrite cores- Guidelines on dimensions and limits of surface irregularities - Part16: SQ-cores Categories: Information management \| Standardization. General rules Proposal begins : 2026-02-04	Proposal
IEC 51/1431/NP	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 15: U-cores Categories: Information management \| Standardization. General rules \| Engineering \| Electrical engineering \| Magnetic materials \| Components. Electrical equipment Proposal begins : 2023-01-18	Proposal
BS IEC 63361 Ed.1.0	Transformers and inductors - Near Magnetic and Electric Fields Characterization Categories: Components. Magnetic \| Transformers. Reactors Public comment begins : 2024-10-21	Public comment
BS EN 63093-8	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 8: E-cores Categories: Unclassified documents Proposal begins :	Proposal
BS EN 63093-7	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 7: EER-cores Categories: Unclassified documents Proposal begins :	Proposal
BS EN 63093-5	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 5: EP-cores and associated parts for use in inductors and transformers Categories: Unclassified documents Proposal begins :	Proposal
BS EN 63093-4	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 4: RM-cores Categories: Unclassified documents Proposal begins :	Proposal
BS EN 63093-14	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 14: EFD-cores Categories: Unclassified documents Proposal begins :	Proposal

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
AMD 10862	BS EN 60424-3 : 1999 Corrigendum Ferrite cores - Guide on the limits of surface irregularities. Part 3. ETD-cores and E-cores Categories: Magnetic materials \| Components. Magnetic Published standard begins : 2000-02-01	Published standard

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.