Safety training
Control of Hazardous Energies Standard / V5 DRAFT REVIEW - Oct 2025
Highlight typical DC voltages found in modern wind turbines and explain the serious hazard this can present including:
a.
+1000V DC found within the WTG
b.
+190V DC within UPS cabinet units
c. the increased severity of a DC electrical shock compared to AC due to the sine wave not returning through 0 volts as part of its cycle
d. contrast how dangerous this can be compared to low DC voltage batteries supplying alarm and emergency lights
Show and demonstrate examples of the safe handling of batteries and capacitors. The practice will include isolation of energy to batteries and capacitors mounted on a live circuit, replacement of a battery and a capacitor and disposal of the removed battery and capacitor, all in accordance to points ‘a to e’ (below):
a. when connected to a circuit, always visually inspect the batteries and capacitors before starting to work on them; look for signs of distress and leakage
b. when removing batteries from a circuit and during transportation, take precautions to guard battery terminals against short circuiting by covering the terminals with insulating tape or insulating mats
c. when installing batteries and capacitors to a circuit, ensure all batteries and capacitors are correctly and securely mounted
d. ensure the batteries and capacitors are wired with the correct polarity, are as per the wiring diagrams and that all terminals are tight
e. defective batteries and capacitors must be disposed of in accordance with local legislation
Explain the safety procedures in the training area
Facilitate participants’ practice through relevant training tasks or scenarios on the safe handling of batteries and capacitors
Show and demonstrate the selection and use of appropriately insulated tools for working on batteries and capacitors:
a. insulated tools approved for the rated voltage must be used when working around live exposed conductors
Facilitate participants’ practice through relevant training task(s) or scenario(s) in selecting and use appropriately insulated tools for working on batteries
Give constructive feedback or facilitate peer feedback the participants’ performance throughout the training tasks or scenario
Global Wind Organisation ©2025 / www.globalwindsafety.org
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