British Standards Institution - Committee

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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)

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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

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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

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