Make duty capability

[ranlin]

The electrical installation shall be designed to provide:
• Safety to personnel.
• Reliability.
• A graded system of protective devices.
• Equipment with adequate:
- Insulation levels.
- Interrupting capacity.
- Make duty capability.
- Through fault capability.
- Continuous current carrying capacity.
- Control and indication.
- Facilities for maintenance.

Make duty capability - ?
Нагрузочная способность, функциональные возможности, резервирование?

[baraban]

Вообще-то в make в электроустановках означает "замыкать" (контакты)
М.б., способность работы на замыкание?