January 17, 2011
Figuring out electrical service determination for a building
Electrical technicians who go about checking and repairing electrical systems should be mindful of several details. Checking on the safety of the existing electrical panel setups, fuses, and even the service conductors should be part of the regular checklist. This is especially true for amperage loads in the home.
The main fuses or circuit breaker has the ability to actively restrict the amperage to certain levels. If the current goes beyond the allowed threshold the fuse or breaker system automatically trips to protect the grid from being damaged. The panels used in servicing the electrical system should be capable of handling the current. If the level it can tolerate is lower than the running current it can spell a serious disaster leading to possible fire.
Current running at a level above the set limit of a particular piece of equipment is called over-current. As what was stated earlier, panels and the service conductors should be at a range that doesn’t go below the existing current in the grid. The exceptions to this rule are the fuses and breakers that can allow for a certain buffer. Clients would be well-advised to not immediately panic if there’s a mismatch but there’s no harm in having the system upgraded.
Older establishments commonly encounter problems with electrical equipment upgrades. Since the place is setup to handle amperage levels of 60-amperes and not the modern 100-ampere levels, mismatched equipment being installed is mistakenly done. Trained service technicians should be able to address this concern without that much difficulty.
Needless to say, there’s a big requirement to have the person doing the job of checking on the system to be well-trained. The risk of problems cropping up due to poor handling is just too risky. Bottom line is to make sure the technician knows what needs to be done and how to get it done.
Unlike the usual standards, there are still some minor exceptions. Some places still make use of the old 60-ampere ranges because the locality allows for it and the load is not as great. Individual apartment in some rural areas or even some places in the US would fall under this category. Inspectors shouldn’t be quick to log this as an immediate problem right away.
Take into consideration places like Mexico or even cabins located somewhere in the US or Canada. Amperage levels and services are usually set at a lower range and the normal city standards are not necessarily required. Owing to their size and energy consumption, the load would of course not be as big as compared to a building in an urban location. One thing to keep in mind that no matter what type of location, the equipment installed makes Ampacity the limiting factor.
In general, inspectors or technicians should be clear with customers on the dangers of defects in the electrical systems. Homeowners should also not be very cautious and not take these things for granted. The temptation to just bypass the problem with quick fixes tends to lead to a lot more dangers from fires so when problems like these occur make sure to have it attended to promptly.
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