What are the requirements for the safety of recreational equipment

We all know that most of the amusement equipment is used, then what kind of security requirements in the use of electricity? Here with a small make up to look at the requirements of the safety of recreational facilities.
1 the design function of the electric appliance system must satisfy the requirements of the operation control and safety protection of the amusement facilities, and meet the requirements of the normal use of the local environment.
2. Children's amusement equipment of low voltage distribution system connection type should adopt TN-S system; electrical equipment metal casing and uncharged metal structure must be reliable grounding; the protection of low voltage distribution system repeat grounding resistance of less than 10 ohm; grounding device design and construction should comply with the provisions of the industrial and civil electric device grounding design specification "; charged between return circuit and ground insulation resistance should not be less than 1m in Europe.
3 the height of more than 15m recreational facilities should be set up lightning protection devices, lightning protection devices must be connected reliably, and its grounding resistance should be less than 10 ohm.
4 children's play equipment should not be set up in the high-voltage overhead transmission and distribution lines, such as the setting must obtain the consent of the local electric power management department.