{"id":1821,"date":"2026-10-14T11:00:00","date_gmt":"2026-10-14T03:00:00","guid":{"rendered":"https:\/\/www.jingpengpcb.com\/?p=1821"},"modified":"2026-10-08T20:14:39","modified_gmt":"2026-10-08T12:14:39","slug":"pcb-clearance-parameters","status":"publish","type":"post","link":"https:\/\/www.jingpengpcb.com\/en\/blog\/pcb-clearance-parameters\/","title":{"rendered":"Analysis of Some Basic Parameters Related to Safety Distance Technology in PCB Manufacturing"},"content":{"rendered":"<style>\n.jp-tw{overflow-x:auto;margin:26px 0;-webkit-overflow-scrolling:touch;}\n.jp-tw table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px;line-height:1.65;background:#fff;}\n.jp-tw th,.jp-tw td{border:1px solid #dde3ea;padding:11px 14px;text-align:left;vertical-align:top;}\n.jp-tw thead th{background:#eef2f7;color:#1b2733;font-weight:700;white-space:nowrap;border-bottom:2px solid #c9d3de;}\n.jp-tw tbody tr:nth-child(even){background:#fafbfc;}\n.jp-tw tbody tr:hover{background:#f1f5fa;}\n.jp-tw tbody td:first-child{font-weight:600;color:#1b2733;}\n@media(max-width:767px){.jp-tw table{font-size:14px;min-width:520px;}.jp-tw th,.jp-tw td{padding:9px 11px;}}\n<\/style>\n<p>PCBs (Printed Circuit Boards) are one of the core components of modern electronic devices. Electrical safety is always of paramount importance in the design and manufacture of PCBs. PCB safety clearances\u2014including electrical clearance, creepage distance, and insulation penetration distance\u2014are key factors in ensuring the proper operation of electronic devices and preventing electrical failures.<\/p>\n<h2>1. First, distinguish between these three types of \u201cdistance\u201d<\/h2>\n<p>In the context of safety regulations, there are three types of safety distances, each characterized by different measurement paths, failure mechanisms, and methods for determining their values. Many design errors stem from confusing these three types:<\/p>\n<ul>\n<li><strong>Electrical Clearance<\/strong>: The shortest distance through the air, to prevent the air from being broken down and causing an arc.<\/li>\n<li><strong>Creepage Distance<\/strong>: The shortest path measured along the surface of the insulating material, preventing surface contamination and moisture from forming a leakage path (electrical tracking).<\/li>\n<li><strong>Distance Through Insulation<\/strong>: Penetrates the thickness of the solid insulation to prevent the insulation material itself from breaking down.<\/li>\n<\/ul>\n<p>The relationship among the three is<strong>Find the maximum value for each requirement<\/strong>, not cumulative. The most common mistake in actual design is finalizing the design based solely on the electrical clearance\u2014in humid or dusty environments, the creepage distance requirement is often more than twice the electrical clearance.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"227\" class=\"alignnone size-large wp-image-7140\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/distance-between-vias-to-vias.jpg\" alt=\"Via Pitch\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/distance-between-vias-to-vias.jpg 378w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/distance-between-vias-to-vias-300x180.jpg 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><\/p>\n<h2>2. Electrical Clearance and Creepage Distance<\/h2>\n<h3>Electrical Clearance<\/h3>\n<p>Electrical clearance refers to the shortest distance between two adjacent conductors or between a conductor and the surface of an adjacent motor housing, measured through air. This distance is important because it prevents electrical short circuits and current leakage.<\/p>\n<p>In the primary AC section, the distance between L and N upstream of the fuse is typically required to be greater than or equal to 2.5 millimeters, and the distance between L, N, and PE (ground) must also be greater than or equal to 2.5 millimeters. For the section connecting the primary-side AC to the DC section, the electrical clearance must be at least 2.0 mm. The distance between the primary-side DC ground and earth must be at least 4.0 mm. During design, these distances should be maintained as much as possible to prevent short circuits between electrical components and thereby ensure the safety of the power supply system.<\/p>\n<p>When viewed within the context of the standards system, the value for electrical clearance is determined by<strong>Operating Voltage (including peak and transient voltages), Pollution Level, Material Group<\/strong>These three factors are taken into account collectively. The following are reference values for common operating voltage ranges (Pollution Degree 2, Material Group IIIa):<\/p>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>Operating Voltage (RMS)<\/th>\n<th>Basic Insulation, Electrical Clearance<\/th>\n<th>Reinforced Insulation, Electrical Clearance<\/th>\n<th>Typical Scenarios<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u226450 V<\/td>\n<td>Determined by functional insulation; typically \u22650.2 mm<\/td>\n<td>\u22650.4 mm<\/td>\n<td>SELV Low-Voltage Circuit<\/td>\n<\/tr>\n<tr>\n<td>50\u2013150 V<\/td>\n<td>\u22650.5 mm<\/td>\n<td>\u22651.0 mm<\/td>\n<td>Low-Voltage DC Busbar<\/td>\n<\/tr>\n<tr>\n<td>150\u2013300 V<\/td>\n<td>\u22651.5 mm<\/td>\n<td>\u22653.0 mm<\/td>\n<td>220 V AC input<\/td>\n<\/tr>\n<tr>\n<td>300\u2013600 V<\/td>\n<td>\u22653.0 mm<\/td>\n<td>\u22656.0 mm<\/td>\n<td>380 V Three-Phase, PFC Busbar<\/td>\n<\/tr>\n<tr>\n<td>600\u20131,000 V<\/td>\n<td>\u22655.5 mm<\/td>\n<td>\u226511.0 mm<\/td>\n<td>Solar Inverters, Charging Stations<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The table above shows values at steady-state operating voltages. For actual products, additional factors must be taken into account.<strong>Transient Overvoltage<\/strong>Effects\u2014Lightning surges on the power grid side and spikes caused by switch operations must both be re-evaluated according to overvoltage categories (I\u2013IV), and the larger of the two results must be taken.<\/p>\n<h3>Creepage Distance<\/h3>\n<p>Creepage distance refers to the shortest distance between two adjacent conductors or between a conductor and the surface of an adjacent motor housing, measured across the insulating surface. Similar to electrical clearance, creepage distance is intended to prevent electrical short circuits and leakage currents.<\/p>\n<p>In the primary AC section, the distance between L and N upstream of the fuse must be greater than or equal to 2.5 millimeters, and the distance between L, N, and ground must also be greater than or equal to 2.5 millimeters. For the section connecting the primary-side AC to the DC section, the required creepage distance must be greater than or equal to 2.0 millimeters. These requirements ensure that electrical faults\u2014particularly short circuits\u2014do not occur during equipment operation, thereby maintaining electrical safety.<\/p>\n<p>The calculation of creepage distance involves two more variables than that of electrical clearance:<strong>Pollution Level<\/strong>(Levels 1\u20134) and<strong>Material Category<\/strong>(Classified as I, II, IIIa, or IIIb based on the CTI relative tracking index.) At the same voltage, the worst-case combination (contamination level 3 + material group IIIb) can have requirements more than three times higher than the best-case combination (contamination level 1 + material group I):<\/p>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>Operating Voltage<\/th>\n<th>Pollution Class 1 \/ Material I<\/th>\n<th>Contamination Level 2 \/ Material IIIa<\/th>\n<th>Contamination Level 3 \/ Material IIIa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>100 V<\/td>\n<td>0.4 mm<\/td>\n<td>1.0 mm<\/td>\n<td>1.6 mm<\/td>\n<\/tr>\n<tr>\n<td>250 V<\/td>\n<td>0.8 mm<\/td>\n<td>2.5 mm<\/td>\n<td>4.0 mm<\/td>\n<\/tr>\n<tr>\n<td>400 V<\/td>\n<td>1.3 mm<\/td>\n<td>4.0 mm<\/td>\n<td>6.3 mm<\/td>\n<\/tr>\n<tr>\n<td>630 V<\/td>\n<td>2.0 mm<\/td>\n<td>6.3 mm<\/td>\n<td>10.0 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>This is also why high-voltage panels generally need to be cut open.<strong>Separation Tank<\/strong>\u2014Grooving cuts off the path along the edge, forcing the current to follow the air path; this is equivalent to converting the creepage distance into an electrical clearance and is the most cost-effective method of compliance. The groove width is generally 1 mm or greater, and the depth must penetrate through the insulation layer; no copper debris should remain on the groove walls. See the CTI values and selection guidelines for common materials in<a href=\"\/en\/blog\/pcb-circuit-board-materials\/\">PCB Materials<\/a>\u3002<\/p>\n<h2>3. Insulation Penetration Distance<\/h2>\n<p>Insulation clearance refers to the thickness of the insulation. It denotes the maximum voltage that a specific insulating component or piece of equipment can withstand during normal operation at the rated voltage. The correct selection of insulation clearance is critical to the safe operation of electronic equipment.<\/p>\n<p>For operating voltages not exceeding 50 V (71 V AC peak or DC), specific insulation thickness requirements are generally not necessary. However, in other cases, the minimum thickness of the additional insulation should be 0.4 mm. This ensures that insulation failure does not occur during normal operation, thereby preventing electrical hazards.<\/p>\n<p>On a PCB, the entity corresponding to \"clearance\" is<strong>Interlayer Dielectric Thickness<\/strong>. This aspect is easily overlooked because it is not explicitly labeled in the Gerber files; rather, it is determined by the layer stackup:<\/p>\n<ul>\n<li><strong>When there is insufficient single-layer media<\/strong>: If only a single sheet of prepreg (such as 1080, approximately 60\u201375 \u03bcm after lamination) is used between two layers of copper, and the circuit spans the primary and secondary high-voltage sides, two sheets of 2116 or 7628 must be used instead to increase the dielectric thickness to 150\u2013200 \u03bcm.<\/li>\n<li><strong>A thin medium does not necessarily mean compliance<\/strong>: The standard specifies a minimum thickness requirement (typically 0.4 mm for reinforced insulation), but a single sheet of FR-4 prepreg falls far short of this. In such cases, multiple layers of dielectric material must be stacked, or an insulating sheet\/barrier structure must be used instead.<\/li>\n<li><strong>To verify<\/strong>: When performing a high-potential (Hi-Pot) test, follow the product\u2019s test voltage specifications (typically 1,500 VAC \/ 3,000 VDC for 1 minute, with leakage current \u2264 the specified value), and slice the laminate to verify the actual dielectric thickness. For information on selecting a laminate configuration, see<a href=\"\/en\/blog\/pcb-layout-dieceng\/\">How to Choose the Right PCB Design Stack-Up Scheme<\/a>\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1358\" height=\"764\" class=\"alignnone size-large wp-image-6615\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-thickness-and-copper-thickness.jpg\" alt=\"Board Thickness and Copper Thickness in PCB Design\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-thickness-and-copper-thickness.jpg 1358w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-thickness-and-copper-thickness-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-thickness-and-copper-thickness-1024x576.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-thickness-and-copper-thickness-768x432.jpg 768w\" sizes=\"auto, (max-width: 1358px) 100vw, 1358px\" \/><\/p>\n<h2>4. Wiring Techniques and Fire-Retardant Materials<\/h2>\n<p>In PCB design and manufacturing, routing techniques and material selection can also affect electrical safety. Here are some points to keep in mind:<\/p>\n<ul>\n<li>For surface-mount components such as capacitors, ensure they are mounted flat; no adhesive is required.<\/li>\n<li>If applying a force of 10 N between two conductors causes the distance between them to decrease to less than the safety code requirement, consider securing them with adhesive to maintain the electrical clearance.<\/li>\n<li>For equipment with PVC film lining the interior of the housing, ensure that safety clearances are maintained and pay attention to the manufacturing process.<\/li>\n<li>When applying adhesive to secure components, take care not to leave adhesive strings or other foreign objects on the PCB.<\/li>\n<\/ul>\n<p>In addition, the selection of flame-retardant materials is also important to ensure that the PCB does not contribute to the spread of fire in the event of a fire. Common flame-retardant materials include heat-shrink tubing, Teflon tubing, and silicone sheets.<\/p>\n<p>Expanding on the four points above, there are six actionable steps for the production line:<\/p>\n<ul>\n<li><strong>Crevice takes precedence over creepage<\/strong>: When designing between primary and secondary levels, prioritize creating isolation slots of at least 1 mm; this saves more space than increasing the in-plane spacing.<\/li>\n<li><strong>Clearance at the edge of the slot<\/strong>: Do not place copper, drill holes, or mount components within 0.5 mm of either side of the groove to prevent the formation of new pathways due to carbonization of the groove walls.<\/li>\n<li><strong>Avoid Sharp Corners<\/strong>: High-voltage pads and trace endpoints should be rounded or shaped like teardrops, as corona discharge can reduce the effective clearance.<\/li>\n<li><strong>Dispensing and Metering<\/strong>: Test the bond strength using a 10 N force; the amount of adhesive should be sufficient to cover 1\/3 to 1\/2 of the component's body. Do not allow stringing.<\/li>\n<li><strong>\u4e09\u9632\u6f06<\/strong>\uff1a\u6f6e\u6e7f\u73af\u5883\u52a0\u6d82\u4e09\u9632\u6f06\u53ef\u628a\u6c61\u67d3\u7b49\u7ea7\u4ece 3 \u964d\u5230 2\uff0c\u4ece\u800c\u653e\u5bbd\u722c\u7535\u8981\u6c42\uff0c\u662f\u6210\u672c\u6700\u4f4e\u7684\u5408\u89c4\u624b\u6bb5\u4e4b\u4e00\u3002<\/li>\n<li><strong>\u963b\u71c3\u7b49\u7ea7<\/strong>\uff1a\u677f\u6750\u81f3\u5c11 UL94 V-0\uff0c\u5e38\u7528 FR-4 \u9ed8\u8ba4\u6ee1\u8db3\uff1b\u65e0\u5364\u677f\u9700\u5355\u72ec\u786e\u8ba4\u6807\u8bc6\uff0c\u89c1<a href=\"\/en\/capabilities\/\">PCB Manufacturing Capabilities<\/a>\u3002<\/li>\n<\/ul>\n<h2>5. \u7edd\u7f18\u7b49\u7ea7<\/h2>\n<p>\u7edd\u7f18\u7b49\u7ea7\u662f\u6839\u636e\u8bbe\u5907\u7684\u5de5\u4f5c\u7535\u538b\u548c\u7528\u9014\u6765\u786e\u5b9a\u7684\u3002\u4e0d\u540c\u7684\u7edd\u7f18\u7b49\u7ea7\u63d0\u4f9b\u4e0d\u540c\u7ea7\u522b\u7684\u7535\u6c14\u4fdd\u62a4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u7edd\u7f18\u7b49\u7ea7\uff1a<\/p>\n<ul>\n<li>\u5de5\u4f5c\u7edd\u7f18\uff1a\u8bbe\u5907\u6b63\u5e38\u5de5\u4f5c\u6240\u9700\u7684\u7edd\u7f18\u3002<\/li>\n<li>\u57fa\u672c\u7edd\u7f18\uff1a\u63d0\u4f9b\u57fa\u672c\u7535\u6c14\u4fdd\u62a4\uff0c\u4ee5\u9632\u6b62\u7535\u51fb\u3002<\/li>\n<li>\u9644\u52a0\u7edd\u7f18\uff1a\u9664\u57fa\u672c\u7edd\u7f18\u4ee5\u5916\uff0c\u63d0\u4f9b\u72ec\u7acb\u7684\u7edd\u7f18\uff0c\u4ee5\u5728\u57fa\u672c\u7edd\u7f18\u5931\u6548\u65f6\u9632\u6b62\u7535\u51fb\u3002<\/li>\n<li>\u53cc\u91cd\u7edd\u7f18\uff1a\u7531\u57fa\u672c\u7edd\u7f18\u52a0\u4e0a\u9644\u52a0\u7edd\u7f18\u6784\u6210\u7684\u7edd\u7f18\u3002<\/li>\n<li>\u52a0\u5f3a\u7edd\u7f18\uff1a\u63d0\u4f9b\u4e0e\u53cc\u91cd\u7edd\u7f18\u76f8\u5f53\u7684\u7535\u6c14\u4fdd\u62a4\u7ea7\u522b\uff0c\u662f\u5355\u4e00\u7edd\u7f18\u7ed3\u6784\u3002<\/li>\n<\/ul>\n<p>\u4e94\u79cd\u7edd\u7f18\u7b49\u7ea7\u5bf9\u5e94\u7684\u8bd5\u9a8c\u8981\u6c42\u4e0e\u5178\u578b\u5e94\u7528\uff1a<\/p>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>\u7edd\u7f18\u7b49\u7ea7<\/th>\n<th>\u7ed3\u6784\u8981\u6c42<\/th>\n<th>\u8010\u538b\u8bd5\u9a8c\uff08\u53c2\u8003\uff09<\/th>\n<th>Typical Applications<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5de5\u4f5c\u7edd\u7f18\uff08\u529f\u80fd\u7edd\u7f18\uff09<\/td>\n<td>\u4fdd\u8bc1\u7535\u8def\u529f\u80fd\uff0c\u4e0d\u627f\u62c5\u9632\u7535\u51fb<\/td>\n<td>\u6309\u529f\u80fd\u7535\u538b\uff0c\u901a\u5e38 500 VAC<\/td>\n<td>\u540c\u4e00\u7535\u8def\u5185\u7684\u76f8\u90bb\u8d70\u7ebf<\/td>\n<\/tr>\n<tr>\n<td>\u57fa\u672c\u7edd\u7f18<\/td>\n<td>\u5355\u5c42\uff0c\u627f\u62c5\u4e00\u7ea7\u9632\u62a4<\/td>\n<td>1000 VAC + 2\u00d7U+1000<\/td>\n<td>220 V \u8f93\u5165\u7684 L\/N \u5bf9\u5730<\/td>\n<\/tr>\n<tr>\n<td>\u9644\u52a0\u7edd\u7f18<\/td>\n<td>\u72ec\u7acb\u5355\u5c42\uff0c\u57fa\u672c\u5931\u6548\u540e\u4ecd\u9632\u62a4<\/td>\n<td>\u540c\u57fa\u672c\u7edd\u7f18<\/td>\n<td>\u5916\u58f3\u5185\u886c\u7edd\u7f18\u7247<\/td>\n<\/tr>\n<tr>\n<td>\u53cc\u91cd\u7edd\u7f18<\/td>\n<td>\u57fa\u672c + \u9644\u52a0\uff0c\u4e24\u8005\u72ec\u7acb\u53ef\u5206\u522b\u8bd5\u9a8c<\/td>\n<td>\u4e24\u5c42\u5206\u522b\u8bd5\u9a8c<\/td>\n<td>II \u7c7b\u7535\u5668\uff08\u65e0\u63a5\u5730\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u52a0\u5f3a\u7edd\u7f18<\/td>\n<td>\u5355\u4e00\u7ed3\u6784\u4f46\u7b49\u6548\u53cc\u91cd<\/td>\n<td>2000 VAC + 2\u00d7U+1000<\/td>\n<td>\u521d\u6b21\u7ea7\u9694\u79bb\u3001\u5149\u8026\u8de8\u63a5\u533a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5173\u952e\u5224\u636e\u662f<strong>\u300c\u5355\u4e00\u5931\u6548\u662f\u5426\u5bfc\u81f4\u89e6\u7535\u300d<\/strong>\uff1a\u53ea\u8981\u67d0\u4e00\u5c42\u7edd\u7f18\u5931\u6548\u5c31\u4f1a\u89e6\u7535\u7684\uff0c\u53ea\u80fd\u662f\u57fa\u672c\u7edd\u7f18\uff1b\u5931\u6548\u540e\u8fd8\u6709\u7b2c\u4e8c\u5c42\u7684\uff0c\u624d\u662f\u53cc\u91cd\u6216\u52a0\u5f3a\u3002\u533b\u7597\u3001\u5145\u7535\u6869\u3001\u5149\u4f0f\u9006\u53d8\u5668\u8fd9\u7c7b\u4ea7\u54c1\uff0c\u521d\u6b21\u7ea7\u4e4b\u95f4\u4e00\u5f8b\u6309\u52a0\u5f3a\u7edd\u7f18\u5904\u7406\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"562\" class=\"alignnone size-large wp-image-8700\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/performance-of-three-types-of-rigid-copper-clad-laminates.jpg\" alt=\"A Comparison of the Properties of the Three Most Common Types of Rigid Copper-Clad Laminates\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/performance-of-three-types-of-rigid-copper-clad-laminates.jpg 1000w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/performance-of-three-types-of-rigid-copper-clad-laminates-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/performance-of-three-types-of-rigid-copper-clad-laminates-768x432.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h2>6. \u8fd8\u6709\u4e09\u4e2a\u4f1a\u6539\u53d8\u53d6\u503c\u7684\u53d8\u91cf<\/h2>\n<p>\u9664\u4e86\u7535\u538b\u4e0e\u7edd\u7f18\u7b49\u7ea7\uff0c\u4ee5\u4e0b\u4e09\u4e2a\u56e0\u7d20\u7ecf\u5e38\u88ab\u6f0f\u7b97\uff0c\u76f4\u63a5\u5bfc\u81f4\u6837\u673a\u8fc7\u4e0d\u4e86\u5b89\u89c4\uff1a<\/p>\n<ul>\n<li><strong>\u6d77\u62d4<\/strong>\uff1a\u7a7a\u6c14\u5bc6\u5ea6\u968f\u6d77\u62d4\u4e0b\u964d\uff0c\u51fb\u7a7f\u7535\u538b\u964d\u4f4e\u3002\u6807\u51c6\u53d6\u503c\u4e00\u822c\u4ee5 2000 m \u4e3a\u754c\uff0c\u8d85\u8fc7 2000 m \u7535\u6c14\u95f4\u9699\u8981\u4e58\u4ee5\u6d77\u62d4\u4fee\u6b63\u7cfb\u6570\uff083000 m \u7ea6 \u00d71.14\uff0c5000 m \u7ea6 \u00d71.48\uff09\u3002\u51fa\u53e3\u9ad8\u539f\u5730\u533a\u6216\u505a\u822a\u7a7a\u4ea7\u54c1\u5fc5\u987b\u6838\u7b97\u3002<\/li>\n<li><strong>Pollution Level<\/strong>\uff1a1 \u7ea7\uff08\u5bc6\u5c01\u6216\u6d01\u51c0\uff09\u2192 2 \u7ea7\uff08\u4e00\u822c\u5ba4\u5185\uff09\u2192 3 \u7ea7\uff08\u5de5\u4e1a\u3001\u6709\u5bfc\u7535\u7c89\u5c18\u6216\u51dd\u9732\uff09\u2192 4 \u7ea7\uff08\u6237\u5916\u3001\u6301\u7eed\u5bfc\u7535\u6c61\u67d3\uff09\u3002\u7b49\u7ea7\u6bcf\u5347\u4e00\u7ea7\uff0c\u722c\u7535\u8ddd\u79bb\u8981\u6c42\u5927\u5e45\u4e0a\u5347\u3002<\/li>\n<li><strong>\u6750\u6599 CTI<\/strong>\uff1aFR-4 \u5e38\u89c4 CTI \u5728 175\u2013250 V\uff08IIIa \u7ec4\uff09\uff0c\u9ad8 CTI \u677f\u6750\u53ef\u5230 400 V \u4ee5\u4e0a\uff08II \u7ec4\u751a\u81f3 I \u7ec4\uff09\u3002\u505a\u9ad8\u538b\u677f\u65f6\u9009\u9ad8 CTI \u677f\u6750\uff0c\u53ef\u4ee5\u76f4\u63a5\u964d\u4f4e\u722c\u7535\u8ddd\u79bb\u8981\u6c42\uff0c\u6bd4\u62c9\u95f4\u8ddd\u66f4\u5212\u7b97\u3002<\/li>\n<\/ul>\n<h2>7. \u5e38\u89c1\u5b89\u89c4\u6807\u51c6\u600e\u4e48\u9009<\/h2>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>\u6807\u51c6<\/th>\n<th>Applicable Products<\/th>\n<th>\u95f4\u8ddd\u4f53\u7cfb\u7279\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>IEC\/EN 62368-1<\/td>\n<td>\u4fe1\u606f\u6280\u672f\u3001\u97f3\u89c6\u9891\u8bbe\u5907\uff08\u66ff\u4ee3 60950\/60065\uff09<\/td>\n<td>\u57fa\u4e8e\u80fd\u91cf\u6e90\u5206\u7ea7\uff08ES1\/ES2\/ES3\uff09\uff0c\u4e0d\u518d\u7b80\u5355\u6309\u7535\u538b\u5206\u6863<\/td>\n<\/tr>\n<tr>\n<td>IEC\/EN 61010-1<\/td>\n<td>\u6d4b\u91cf\u3001\u63a7\u5236\u3001\u5b9e\u9a8c\u5ba4\u8bbe\u5907<\/td>\n<td>\u6309\u6d4b\u91cf\u7c7b\u522b\uff08CAT I\u2013IV\uff09\u4e0e\u6c61\u67d3\u7b49\u7ea7\u53d6\u503c<\/td>\n<\/tr>\n<tr>\n<td>IEC\/EN 60601-1<\/td>\n<td>\u533b\u7528\u7535\u6c14\u8bbe\u5907<\/td>\n<td>\u5f15\u5165 MOPP\/MOPP \u60a3\u8005\u9632\u62a4\u6982\u5ff5\uff0c2\u00d7MOPP \u8981\u6c42\u6700\u4e25<\/td>\n<\/tr>\n<tr>\n<td>IPC-2221 \/ IPC-2222<\/td>\n<td>PCB \u672c\u4f53\u8bbe\u8ba1<\/td>\n<td>\u7ed9\u51fa\u5bfc\u4f53\u95f4\u8ddd\u7684\u901a\u7528\u8868\uff0c\u542b\u7535\u538b\u4e0e\u6d82\u5c42\u6761\u4ef6\u4fee\u6b63<\/td>\n<\/tr>\n<tr>\n<td>UL 796<\/td>\n<td>\u5370\u5236\u7ebf\u8def\u677f\u672c\u4f53\u5b89\u5168\u8ba4\u8bc1<\/td>\n<td>\u4fa7\u91cd\u677f\u6750\u963b\u71c3\u4e0e\u8010\u7535\u538b\uff0c\u662f\u5317\u7f8e\u5e02\u573a\u5e38\u89c1\u8981\u6c42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u9009\u578b\u65f6\u7684\u7ecf\u9a8c\u987a\u5e8f\u662f\uff1a<strong>\u5148\u5b9a\u4ea7\u54c1\u7c7b\u522b \u2192 \u5b9a\u9002\u7528\u6807\u51c6 \u2192 \u5b9a\u6c61\u67d3\u7b49\u7ea7\u4e0e\u6d77\u62d4 \u2192 \u5b9a\u7edd\u7f18\u7b49\u7ea7 \u2192 \u67e5\u8868\u53d6\u95f4\u9699\u4e0e\u722c\u7535 \u2192 \u53e0\u52a0\u77ac\u6001\u8fc7\u7535\u538b\u6821\u6838 \u2192 \u7528\u5f00\u69fd\/\u4e09\u9632\u6f06\u505a\u4f18\u5316<\/strong>\u3002\u8df3\u8fc7\u4efb\u4f55\u4e00\u6b65\u90fd\u4f1a\u5728\u5b89\u89c4\u6d4b\u8bd5\u9636\u6bb5\u8fd4\u5de5\u3002<\/p>\n<h2>8. \u5236\u9020\u7aef\u7684\u56db\u4e2a\u4e00\u81f4\u6027\u8d28\u63a7\u70b9<\/h2>\n<p>\u8bbe\u8ba1\u503c\u753b\u5bf9\u4e86\uff0c\u5236\u9020\u7aef\u8dd1\u504f\u4e00\u6837\u4e0d\u5408\u683c\uff1a<\/p>\n<ul>\n<li><strong>\u8680\u523b\u4fa7\u8680<\/strong>\uff1a\u7ebf\u5bbd\u88ab\u8680\u7ec6\u610f\u5473\u7740\u95f4\u8ddd\u88ab\u8680\u5bbd\uff0c\u5bf9\u95f4\u9699\u6709\u5229\u4f46\u5bf9\u8f7d\u6d41\u4e0d\u5229\uff0c\u9700\u8981\u5728 CAM \u9636\u6bb5\u505a\u8865\u507f\u800c\u4e0d\u662f\u4e8b\u540e\u8865\u6551\u3002<\/li>\n<li><strong>\u963b\u710a\u5f00\u7a97\u7cbe\u5ea6<\/strong>\uff1a\u963b\u710a\u504f\u79fb\u4f1a\u9732\u94dc\uff0c\u4f7f\u5b9e\u9645\u722c\u7535\u8def\u5f84\u53d8\u77ed\u3002\u9ad8\u538b\u533a\u8981\u660e\u786e\u963b\u710a\u5f00\u7a97\u7684\u516c\u5dee\u8981\u6c42\u3002<\/li>\n<li><strong>\u9694\u79bb\u69fd\u8d28\u91cf<\/strong>\uff1a\u69fd\u5bbd\u516c\u5dee\u3001\u69fd\u58c1\u78b3\u5316\u3001\u69fd\u5185\u6b8b\u94dc\u90fd\u8981\u7eb3\u5165\u68c0\u9a8c\u3002\u94e3\u69fd\uff08Rout\uff09\u6bd4 V-Cut \u66f4\u9002\u5408\u505a\u5b89\u89c4\u69fd\u3002<\/li>\n<li><strong>Interlayer Dielectric Thickness<\/strong>\uff1a\u538b\u5408\u540e\u5b9e\u6d4b\u539a\u5ea6\u5fc5\u987b\u843d\u5728\u53e0\u5c42\u8bbe\u8ba1\u8303\u56f4\u5185\uff0c\u8fd9\u4e00\u9879\u9760\u5207\u7247\u62bd\u68c0\u786e\u8ba4\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1174\" height=\"661\" class=\"alignnone size-large wp-image-8459\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/multilayer-board-substrate-materials-and-semi-cured-sheets.jpg\" alt=\"Multilayer Board Substrate Materials and Preforms\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/multilayer-board-substrate-materials-and-semi-cured-sheets.jpg 1174w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/multilayer-board-substrate-materials-and-semi-cured-sheets-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/multilayer-board-substrate-materials-and-semi-cured-sheets-1024x577.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/multilayer-board-substrate-materials-and-semi-cured-sheets-768x432.jpg 768w\" sizes=\"auto, (max-width: 1174px) 100vw, 1174px\" \/><\/p>\n<h2>9. \u7ed3\u8bba<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" class=\"alignnone size-large wp-image-6101\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/07\/PCB\u53e0\u5c42.jpg\" alt=\"PCB Layer-Up Structure\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/07\/PCB\u53e0\u5c42.jpg 1280w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/07\/PCB\u53e0\u5c42-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/07\/PCB\u53e0\u5c42-1024x576.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/07\/PCB\u53e0\u5c42-768x432.jpg 768w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/07\/PCB\u53e0\u5c42-400x225.jpg 400w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>PCB\u5b89\u5168\u8ddd\u79bb\u662f\u786e\u4fdd\u7535\u5b50\u8bbe\u5907\u7535\u6c14\u5b89\u5168\u7684\u91cd\u8981\u56e0\u7d20\u3002\u7535\u6c14\u95f4\u9699\u3001\u722c\u7535\u8ddd\u79bb\u548c\u7edd\u7f18\u7a7f\u900f\u8ddd\u79bb\u7684\u6b63\u786e\u9009\u62e9\u548c\u7ef4\u62a4\u5bf9\u4e8e\u9632\u6b62\u7535\u6c14\u6545\u969c\u548c\u706b\u707e\u81f3\u5173\u91cd\u8981\u3002\u5728PCB\u8bbe\u8ba1\u548c\u5236\u9020\u4e2d\uff0c\u5fc5\u987b\u4e25\u683c\u9075\u5faa\u76f8\u5173\u5b89\u5168\u6807\u51c6\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u4ee5\u786e\u4fdd\u8bbe\u5907\u7684\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<h3>1. \u4ec0\u4e48\u662f\u7535\u6c14\u95f4\u9699\u548c\u722c\u7535\u8ddd\u79bb\uff1f<\/h3>\n<ul>\n<li>\u7535\u6c14\u95f4\u9699\u662f\u4e24\u4e2a\u5bfc\u4f53\u6216\u5bfc\u4f53\u4e0e\u7535\u673a\u58f3\u4e4b\u95f4\u7684\u6700\u77ed\u7a7a\u6c14\u8ddd\u79bb\uff0c\u800c\u722c\u7535\u8ddd\u79bb\u662f\u76f8\u540c\u8ddd\u79bb\uff0c\u4f46\u6cbf\u7edd\u7f18\u8868\u9762\u6d4b\u91cf\u3002<\/li>\n<\/ul>\n<h3>2. \u4e3a\u4ec0\u4e48\u7535\u6c14\u5b89\u5168\u8ddd\u79bb\u91cd\u8981\uff1f<\/h3>\n<ul>\n<li>\u7535\u6c14\u5b89\u5168\u8ddd\u79bb\u7684\u6b63\u786e\u9009\u62e9\u53ef\u4ee5\u9632\u6b62\u7535\u6c14\u77ed\u8def\u3001\u6f0f\u7535\u548c\u706b\u707e\uff0c\u786e\u4fdd\u7535\u5b50\u8bbe\u5907\u7684\u5b89\u5168\u8fd0\u884c\u3002<\/li>\n<\/ul>\n<h3>3. \u4ec0\u4e48\u662f\u7edd\u7f18\u7b49\u7ea7\uff1f<\/h3>\n<ul>\n<li>\u7edd\u7f18\u7b49\u7ea7\u6839\u636e\u8bbe\u5907\u7684\u5de5\u4f5c\u7535\u538b\u548c\u7528\u9014\u6765\u786e\u5b9a\uff0c\u63d0\u4f9b\u4e0d\u540c\u7ea7\u522b\u7684\u7535\u6c14\u4fdd\u62a4\uff0c\u5305\u62ec\u5de5\u4f5c\u7edd\u7f18\u3001\u57fa\u672c\u7edd\u7f18\u3001\u9644\u52a0\u7edd\u7f18\u3001\u53cc\u91cd\u7edd\u7f18\u548c\u52a0\u5f3a\u7edd\u7f18\u3002<\/li>\n<\/ul>\n<h3>4. \u4e3a\u4ec0\u4e48\u9632\u71c3\u6750\u6599\u91cd\u8981\uff1f<\/h3>\n<ul>\n<li>\u9632\u71c3\u6750\u6599\u53ef\u4ee5\u786e\u4fddPCB\u5728\u706b\u707e\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u52a9\u71c3\uff0c\u4ece\u800c\u63d0\u9ad8\u7535\u5b50\u8bbe\u5907\u7684\u706b\u707e\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<h3>5. \u5982\u4f55\u786e\u4fddPCB\u7684\u7535\u6c14\u5b89\u5168\uff1f<\/h3>\n<ul>\n<li>\u786e\u4fdd\u6b63\u786e\u9009\u62e9\u548c\u7ef4\u62a4\u7535\u6c14\u95f4\u9699\u3001\u722c\u7535\u8ddd\u79bb\u548c\u7edd\u7f18\u7a7f\u900f\u8ddd\u79bb\uff0c\u9075\u5faa\u76f8\u5173\u7684\u5b89\u5168\u6807\u51c6\u548c\u6700\u4f73\u5b9e\u8df5\uff0c\u9009\u62e9\u5408\u9002\u7684\u9632\u71c3\u6750\u6599\u3002<\/li>\n<\/ul>\n<h3>6. \u722c\u7535\u8ddd\u79bb\u4e0d\u591f\uff0c\u6700\u7701\u4e8b\u7684\u8865\u6551\u529e\u6cd5\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5f00\u9694\u79bb\u69fd\u3002\u5728\u4e24\u5bfc\u4f53\u4e4b\u95f4\u94e3\u4e00\u6761\u5bbd 1 mm \u4ee5\u4e0a\u7684\u69fd\uff0c\u628a\u6cbf\u9762\u8def\u5f84\u5207\u65ad\uff0c\u539f\u672c\u9700\u8981 6 mm \u7684\u722c\u7535\u8ddd\u79bb\u53ef\u4ee5\u8f6c\u5316\u4e3a\u6309\u7535\u6c14\u95f4\u9699\u53d6\u503c\uff08\u53ef\u80fd\u53ea\u8981 3 mm\uff09\u3002\u5176\u6b21\u662f\u6d82\u4e09\u9632\u6f06\u964d\u4f4e\u6c61\u67d3\u7b49\u7ea7\uff0c\u6216\u6539\u7528\u9ad8 CTI \u677f\u6750\u3002<\/p>\n<h3>7. 220 V \u8f93\u5165\u7684\u4ea7\u54c1\uff0c\u521d\u6b21\u7ea7\u4e4b\u95f4\u4e00\u822c\u7559\u591a\u5c11\uff1f<\/h3>\n<p>\u6309\u6c61\u67d3\u7b49\u7ea7 2\u3001\u6750\u6599\u7ec4\u522b IIIa\u3001\u52a0\u5f3a\u7edd\u7f18\u53d6\u503c\uff0c\u7535\u6c14\u95f4\u9699\u4e00\u822c \u22653.0 mm\uff0c\u722c\u7535\u8ddd\u79bb\u4e00\u822c \u22656.0 mm\u3002\u82e5\u4ea7\u54c1\u8981\u51fa\u53e3\u9ad8\u539f\u5730\u533a\u6216\u7528\u4e8e\u5de5\u4e1a\u73af\u5883\uff0c\u9700\u518d\u4e58\u6d77\u62d4\u4fee\u6b63\u7cfb\u6570\u5e76\u4e0a\u8c03\u6c61\u67d3\u7b49\u7ea7\u3002<\/p>\n<h3>8. \u4f4e\u538b\u7535\u8def\uff08\u6bd4\u5982 12 V\uff09\u8fd8\u9700\u8981\u8003\u8651\u5b89\u5168\u8ddd\u79bb\u5417\uff1f<\/h3>\n<p>\u8981\u770b\u662f\u5426\u5c5e\u4e8e SELV\uff08\u5b89\u5168\u7279\u4f4e\u7535\u538b\uff09\u3002\u82e5 12 V \u7531\u9694\u79bb\u7535\u6e90\u4ea7\u751f\u4e14\u6ee1\u8db3 SELV \u6761\u4ef6\uff0c\u53ea\u9700\u529f\u80fd\u7edd\u7f18\uff0c\u95f4\u8ddd\u6309\u7535\u538b\u4e0e\u722c\u7535\u5e38\u89c4\u53d6\u503c\u5373\u53ef\uff1b\u82e5 12 V \u4e0e\u975e\u9694\u79bb\u9ad8\u538b\u5171\u677f\uff0c\u5219 12 V \u4fa7\u4e5f\u8981\u6309\u9ad8\u538b\u4fa7\u7684\u8981\u6c42\u505a\u9694\u79bb\u3002<\/p>\n<h3>9. \u677f\u5382\u7684\u5de5\u827a\u80fd\u529b\u5bf9\u5b89\u5168\u8ddd\u79bb\u6709\u54ea\u4e9b\u786c\u7ea6\u675f\uff1f<\/h3>\n<p>\u6700\u5c0f\u7ebf\u5bbd\u7ebf\u8ddd\u3001\u963b\u710a\u5bf9\u4f4d\u7cbe\u5ea6\u3001\u94e3\u69fd\u6700\u5c0f\u5bbd\u5ea6\u3001\u5c42\u95f4\u4ecb\u8d28\u539a\u5ea6\u516c\u5dee\u8fd9\u56db\u9879\u76f4\u63a5\u51b3\u5b9a\u80fd\u5426\u5b9e\u73b0\u8bbe\u8ba1\u7684\u5b89\u5168\u95f4\u8ddd\u3002\u4e0b\u5355\u524d\u5e94\u628a\u8fd9\u4e9b\u53c2\u6570\u5199\u8fdb\u56fe\u7eb8\u5e76\u5728<a href=\"\/en\/capabilities\/\">PCB Manufacturing Capabilities<\/a>\u4e2d\u9010\u4e00\u6838\u5bf9\u3002<\/p>\n<h3>10. \u8010\u538b\u6d4b\u8bd5\u6253\u4e0d\u8fc7\uff0c\u901a\u5e38\u662f\u54ea\u51fa\u95ee\u9898\uff1f<\/h3>\n<p>\u6309\u51fa\u73b0\u9891\u7387\u6392\u5e8f\uff1a\u4e00\u662f\u5c42\u95f4\u4ecb\u8d28\u539a\u5ea6\u4e0d\u8db3\uff08\u53e0\u5c42\u8bbe\u8ba1\u95ee\u9898\uff09\uff1b\u4e8c\u662f\u9694\u79bb\u69fd\u5185\u6709\u6b8b\u94dc\u6216\u78b3\u5316\uff08\u5236\u9020\u95ee\u9898\uff09\uff1b\u4e09\u662f\u722c\u7535\u8def\u5f84\u4e0a\u6709\u52a9\u710a\u5242\u6b8b\u7559\u6216\u4e09\u9632\u6f06\u672a\u8986\u76d6\uff08 cleanliness \u95ee\u9898\uff09\uff1b\u56db\u662f\u53d8\u538b\u5668\u3001\u5149\u8026\u7b49\u8de8\u63a5\u5668\u4ef6\u672c\u8eab\u7684\u722c\u7535\u8ddd\u79bb\u4e0d\u8db3\uff08\u5668\u4ef6\u9009\u578b\u95ee\u9898\uff09\u3002\u9010\u4e00\u6392\u67e5\u5373\u53ef\u5b9a\u4f4d\u3002<\/p>\n<p><strong>Further Reading<\/strong>\uff1a<a href=\"\/en\/blog\/pcb-spacing\/\">Electrical Safety Clearances<\/a> \u00b7 <a href=\"\/en\/blog\/pcb-layout-dieceng\/\">How to Choose the Right PCB Design Stack-Up Scheme<\/a> \u00b7 <a href=\"\/en\/blog\/pcb-circuit-board-materials\/\">PCB Materials<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>PCB\uff08Printed Circuit Board\uff0c\u5370\u5237\u7535\u8def\u677f\uff09\u662f\u73b0\u4ee3\u7535\u5b50\u8bbe\u5907\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206\u4e4b\u4e00\u3002\u5728\u8bbe\u8ba1\u548c\u5236\u9020 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"Analysis of Some Basic Parameters Related to Safety Distance Technology in PCB Manufacturing - Jingpeng Electronics","description":"What are the basic parameters for PCB safety clearances? This article explains the definitions of electrical clearance, creepage distance, and insulation penetration distance, as well as routing techniques and insulation class requirements. It also highlights common misconceptions to help you avoid easily overlooked details."},"_slim_seo_primary_term_category":0,"_slim_seo_primary_term_post_tag":0,"footnotes":""},"categories":[413,26],"tags":[],"class_list":["post-1821","post","type-post","status-publish","format-standard","hentry","category-pcb-basics","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/1821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/comments?post=1821"}],"version-history":[{"count":4,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/1821\/revisions"}],"predecessor-version":[{"id":19883,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/1821\/revisions\/19883"}],"wp:attachment":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/media?parent=1821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/categories?post=1821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/tags?post=1821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}