Final answer:
According to the commonly referenced NFPA 58 standard for LP-gas, the maximum length for a transfer hose used in LP-gas dispensing systems is typically 18 feet (5.5 meters). However, local regulations can vary, and specific applications might require adherence to different standards.
Step-by-step explanation:
The question asks about the maximum length of an LP-gas transfer hose on an LP-gas vehicle fuel dispenser. In the context of the LP-gas industry, safety codes and standards are established by organizations such as the National Fire Protection Association (NFPA). However, without specifying a particular standard or guideline, it's challenging to give a definitive answer as regulations may vary by jurisdiction.
For the purpose of this tutorial, let's consider NFPA 58, which is a commonly referenced standard for liquefied petroleum gas code. According to NFPA 58, the maximum allowable length for a transfer hose used in LP-gas dispensing systems is usually 18 feet (5.5 meters). This standard is designed to provide safety by limiting the potential for entanglement, tripping, or other hazards that could arise from using excessively long hoses.
It's important to note that specific applications and local regulations can lead to variations in this requirement, so it's always best practice to consult the latest version of the standard and any local regulations that are applicable to your specific situation. Moreover, there might be exceptions or additional conditions within the standard that could influence the maximum allowable length for a particular installation.