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Fixed installations for railway applications. Electrical safety, earthing and the return circuit - Protective provisions against electric shock. Original standard BS EN 50122-1-2022 + A1-2025 in PDF full version. Additional info + preview on request

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Fixed installations for railway applications. Electrical safety, earthing and the return circuit - Mutual Interaction of AC and DC traction systems. Original standard BS EN 50122-3-2022 + A1-2025 in PDF full version. Additional info + preview on request

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Alarm systems. Intrusion and hold-up systems - Requirements for shock detectors. Original standard BS EN 50131-2-8-2025 in PDF full version. Additional info + preview on request

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Lead-acid starter batteries - Batteries for micro-cycle applications. Original standard BS EN 50342-6-2025 in PDF full version. Additional info + preview on request

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Fire detection and fire alarm systems - Control and indicating equipment. Original standard BS EN 54-2-1997 + A1-2006 (2009) in PDF full version. Additional info + preview on request

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Aluminium and aluminium alloys. Forgings - Technical conditions for inspection and delivery. Original standard BS EN 586-1-1998 in PDF full version. Additional info + preview on request

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