Operation results show that this system can provide a reliable guarantee on safety operation, supervisory control and load and energy adjustment for ground source heat pumps.
运行结果表明，该系统能为土壤源热泵安全运行、监测管理和负荷能量调节提供可靠保证。
When power generation and power consumption system with same voltage class is built within the bound of ground grid with zero ground potential, operators safety in the ground grid can be ensured.
在零地电位接地网的范围内建设同级电压的发电-用电系统，可保证在该接地网内工作人员的人身安全。
Most electrical outlets have a prong that connects to the earth ground, which is also usually wired into the building electrical system for safety.
绝大多数电源插座有一个地线端与大地相连，这通常是为保障建筑电气系统的安全而采取的安全措施。
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