sec.237Explosion-protected load-haul dump vehicle powered by a battery or internal combustion engine

### sec.237 Explosion-protected load-haul dump vehicle powered by a battery or internal combustion engine This section applies to an explosion-protected load-haul dump vehicle powered by a battery or an internal combustion engine. The vehicle must be fitted with at least 1 automatic methane detector to detect the general body concentration of methane around the vehicle. The detector must automatically— activate a visible alarm to warn the operator when the concentration exceeds 1%; and either— trip the electricity supply to the vehicle’s electrical motors when the concentration exceeds 2%; or stop the vehicle’s internal combustion engine when the concentration exceeds 1.25%. (sec.237-ssec.1) This section applies to an explosion-protected load-haul dump vehicle powered by a battery or an internal combustion engine. (sec.237-ssec.2) The vehicle must be fitted with at least 1 automatic methane detector to detect the general body concentration of methane around the vehicle. (sec.237-ssec.3) The detector must automatically— activate a visible alarm to warn the operator when the concentration exceeds 1%; and either— trip the electricity supply to the vehicle’s electrical motors when the concentration exceeds 2%; or stop the vehicle’s internal combustion engine when the concentration exceeds 1.25%. - (a) activate a visible alarm to warn the operator when the concentration exceeds 1%; and - (b) either— (i) trip the electricity supply to the vehicle’s electrical motors when the concentration exceeds 2%; or (ii) stop the vehicle’s internal combustion engine when the concentration exceeds 1.25%. - (i) trip the electricity supply to the vehicle’s electrical motors when the concentration exceeds 2%; or - (ii) stop the vehicle’s internal combustion engine when the concentration exceeds 1.25%. - (i) trip the electricity supply to the vehicle’s electrical motors when the concentration exceeds 2%; or - (ii) stop the vehicle’s internal combustion engine when the concentration exceeds 1.25%.