Principle of electric shock in solar container communication stations

What is protection against electric shock under single fault conditions?

Protection against electric shock under single fault conditions casing). Protection under normal conditions is achieved by basic protection, formerly known as protection against direct contact. Protection under single fault conditions is achieved by fault protection and was previously referred to as protection against indirect contact.

How to protect against electric shock?

Protection against electric shock is ensured differently for two types of risks: direct contact and indirect contact. Basic protection is mainly achieved by surrounding the live parts with insulating material. In civil environments, except for very low voltage appliances, everything live is surrounded by insulating materials.

What if EV crew is exposed to ISS shock?

In the case of EV crew hazardous exposure to shock due to negative potential, the crewmember must be at a location on the ISS truss with a negative floating potential, and the EMU must make electrical contact with ISS (either directly or indirectly). As stated earlier, crew electrical contact with the EMU interior is assumed.

What is the ISS charging detection and warning process?

The ISS spacecraft charging detection and warning process identifies possibly hazardous conditions before they occur and advises ISS management in time to activate EVA shock hazard controls as needed .