Professional Answer: There is no single universal standard for underground cable laying; regulations are typically governed by national and regional codes. For example, the National Electrical Code (NEC) is a primary standard in the United States, while AS/NZS 3000 (Wiring Rules) is used in Australia and New Zealand, and standards from organizations like the IEC (International Electrotechnical Commission) are widely adopted globally. Our equipment is designed and manufactured to be compatible with a broad range of these international standards, ensuring our clients can meet the specific requirements of their projects regardless of location.