STB PDF
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 15- Functional safety requirements for insulation monitoring devices in IT systems and equipment for insulation fault location in IT systems (IEC 61557-15-2014). Original standard BS EN 61557-15-2014 in PDF full version. Additional info + preview on request
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Corrugated pressboard and presspaper for electrical purposes Part 2- Methods of test. Original standard BS EN 61628-2-1999 (2008) in PDF full version. Additional info + preview on request
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End-face image analysis procedure for the calibration of optical fibre geometry test sets - Part 1- Introduction and roadmap for standardization. Original standard BS EN 61745-2017 in PDF full version. Additional info + preview on request
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Fibre optic interconnecting devices and passive components performance standard Part 2-3- Non-connectorised single mode 1XN and 2xN non-wavelength-selective branching devices for Category U - Uncontrolled environment (IEC 61753-2-3-2001). Original standard BS EN 61753-2-3-2001 in PDF full version. Additional info + preview on request
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Fibre optic interconnecting devices and passive components - Fibre optic connector optical interfaces - Part 3-7- Optical interface, 2,5 mm and 1,25 mm diameter cylindrical PC composite ferrule using titanium as fibre surrounding material, single mode fibre (IEC 61755-3-7-2009). Original standard BS EN 61755-3-7-2009 in PDF full version. Additional info + preview on request
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Fibre optic interconnecting devices and passive components - Fibre optic connector optical interfaces - Part 3-8- Optical interface, 2,5 mm and 1,25 mm diameter cylindrical 8 degrees angled-APC composite ferrule using titanium as fibre surrounding material single mode fibre. Original standard BS EN 61755-3-8-2009 in PDF full version. Additional info + preview on request
Document status: Active