{"id":6178,"date":"2020-11-04T07:53:01","date_gmt":"2020-11-03T23:53:01","guid":{"rendered":"https:\/\/tommykwan.com\/blog\/?p=6178"},"modified":"2020-11-04T07:53:49","modified_gmt":"2020-11-03T23:53:49","slug":"whats-extra-low-voltage-%e7%89%b9%e4%bd%8e%e5%a3%93-low-voltage-%e4%bd%8e%e5%a3%93-and-high-voltage-%e9%ab%98%e5%a3%93","status":"publish","type":"post","link":"https:\/\/tommykwan.com\/blog\/occupational-health-and-safety-osh\/whats-extra-low-voltage-%e7%89%b9%e4%bd%8e%e5%a3%93-low-voltage-%e4%bd%8e%e5%a3%93-and-high-voltage-%e9%ab%98%e5%a3%93\/","title":{"rendered":"What&#8217;s \u201cextra-low voltage\u201d (\u7279\u4f4e\u58d3) , \u201clow voltage\u201d (\u4f4e\u58d3) , and \u201chigh voltage\u201d (\u9ad8\u58d3)?"},"content":{"rendered":"[Ref <a href=\"https:\/\/www.elegislation.gov.hk\/hk\/cap59W\" target=\"_blank\" rel=\"noopener noreferrer\">Cap.59W<\/a>]\n<blockquote><p>\u201cextra-low voltage\u201d (\u7279\u4f4e\u58d3) means any voltage not exceeding 50 volts alternating current or 120 volts direct current whether between conductors or to earth;<\/p>\n<p>\u201clow voltage\u201d (\u4f4e\u58d3) means any voltage normally exceeding extra low voltage but not exceeding 1000 volts alternating current or 1500 volts direct current between conductors or 600 volts alternating current or 900 volts direct current between conductors and earth;<\/p>\n<p>\u201chigh voltage\u201d (\u9ad8\u58d3) means any voltage normally exceeding low voltage;<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p><strong>Summary<\/strong><\/p>\n<p>\u201cextra-low voltage\u201d (\u7279\u4f4e\u58d3):<\/p>\n<ul>\n<li>\u2264 50V (A.C); \u2264120V (D.C)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\u201clow voltage\u201d (\u4f4e\u58d3):<\/p>\n<ul>\n<li>\u2264 1000V (A.C); \u22641500V (D.C) [between conductors]<\/li>\n<li>\u2264 600V (A.C); \u2264900V (D.C) [between conductors and the earth]<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\u201chigh voltage\u201d (\u9ad8\u58d3):<\/p>\n<ul>\n<li>&gt; low voltage<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>[Ref Cap.59W] \u201cextra-low voltage\u201d (\u7279\u4f4e\u58d3) means any voltage not exceeding 50 volts alternating current or 120 volts direct current whether between conductors or to earth; \u201clow voltage\u201d (\u4f4e\u58d3) means any voltage normally exceeding extra low voltage but not exceeding 1000 volts alternating current or 1500 volts direct current between conductors or 600 volts alternating current<a class=\"read-more \" href=\"https:\/\/tommykwan.com\/blog\/occupational-health-and-safety-osh\/whats-extra-low-voltage-%e7%89%b9%e4%bd%8e%e5%a3%93-low-voltage-%e4%bd%8e%e5%a3%93-and-high-voltage-%e9%ab%98%e5%a3%93\/\" title=\"Read More\"> <span class=\"button default\">Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36,31],"tags":[],"class_list":["post-6178","post","type-post","status-publish","format-standard","hentry","category-legislative-context-in-ohs","category-occupational-health-and-safety-osh"],"_links":{"self":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/6178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/comments?post=6178"}],"version-history":[{"count":3,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/6178\/revisions"}],"predecessor-version":[{"id":6181,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/6178\/revisions\/6181"}],"wp:attachment":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/media?parent=6178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/categories?post=6178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/tags?post=6178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}