What are the safety regulations for lighting and s

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What are the safety regulations for lighting and signaling of cranes

the lighting and signal of the crane are clearly specified in the safety regulations for lifting appliances:

(1) the crane shall be equipped with normal lighting and portable lighting for easy operation

(2) special circuit shall be set for lighting. The power supply shall be tapped from the incoming end of the main circuit breaker of the crane. When the main circuit breaker cuts off the power supply, the lighting shall not be powered off. All lighting shall be provided with short-circuit protection

it is forbidden to use metal structure as the circuit of lighting circuit. For the system powered by a single battery with a voltage not exceeding 24V, except for the 1-bit red 2-generation system

(3) portable portable lights shall be powered by a double turn transformer of no more than 36V. It is strictly prohibited to use an autotransformer and the grounding wire as the current carrying zero line

(4) the illumination in the hoisting cab shall not be less than 30lx

(5) the illumination of the machine room, electrical room and special maintenance elevator of the crane shall not be less than 5lx

(6) obstacle lights: outdoor cranes with a total height greater than 3om shall be provided with red obstacle lights in one of the following cases:

l) when there are no buildings and other facilities higher than the top of the crane around

2) possible collision

3) it may become a dangerous obstacle for aircraft taking off, landing and flight

the power supply of the obstruction light shall not be cut off due to the shutdown of the crane

(7) the crane shall be provided with a signal indicating the opening and closing status of the main power supply, and a fault signal or alarm signal shall be set if necessary

electronic universal testing machine shall be used for static load test of safety belts, foot buckles, lifting plates and bamboo ladders. The number indication shall be set at the place where the driver or relevant personnel can reach the sight and hearing

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