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BS 12/30247717 DC
BS IEC 62128-3. Railway applications. Fixed installations. Electrical safety, earthing and the return circuit. Part 3. Mutual Interaction of a.c. and d.c. traction systems
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BS 12/30260765 DC
BS EN 50412-4. Power line communication apparatus and systems used in low-voltage installations in the frequency range 1,6 MHz to 30 MHz. Part 4. Low rate wide band services (LRWBS) operating between 2 MHz and 4 MHz. Channel allocations
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BS ISO 11749. Belt drive. V-ribbed belts for the automotive industry. Fatigue test
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