To protect the meter power supply against overload/short circuit and to prevent excessive current flow to earth in the event of a short circuit between either conductor in the power cord and Earth, both lines shall be protected by HRC fuses of 1A rating and 6kA breaking capacity, permanently fitted in the Adaptor.

有誰(shuí)知道這里面的保險(xiǎn)絲的類(lèi)型是怎么樣子的，符合什么標(biāo)準(zhǔn)嗎？