Darvin Espinosa

• worked as an apprentice electrician commercial and industrial government building and domestic housing interior low voltage replacing outlets, two and three way switches replacing damaged circuit breakers replacing electrical panels.
• led a project adding the electrical parts of an military office bending 1/2 EMT conduit making 90°, box offsets, saddles, back to back,
• running AWG 14 wire for the outlets and light switches to the circuit breaker at the main panel.
• Following the NFPA 70 electric code for limits on bending, wire size amount of circuit breakers and amount of switches and outlets.
• also doing standby calls for power outages emergencies.
• Then I also worked exterior low and high voltage with Okinawan locals electricians contracted by kadena AFB.
• fixed and completed many parking lot lights,street lights replacing ballast, cobra head fixtures to LED street lights
• oil transformer change up on polls and dry pad mount transformers on ground.
• also I did low and high voltage rubber glove testing also doing the dielectric bucket truck testing,dielectric boom testing.
• I did power transformer infrared inspection, with an infrared thermo camera.
• Trained for bare base tent city using MEP-806B generator,to primary switching center, PSC, to Secondary distribution Center SDC,to Power distributional panel,PDP then inside the tent panel.
• After that I was sent to Airfield lighting working at the vault trained in two ways radio communications with the airfield tower.
• Replacing taxi way lights, approach lights, edge lights, threshold lights,

PAPI (Precision Approach Path Indicator) lights located on the left hand side of the runway and calibrating the height for them.setting the regulators depending on visibility of the day .

• Led hand by hand with the local electrician on base a PAPI (Precision Approach Path Indicator) lights replacement and calibration on a BI-directional runway replacing two instead of one.
• replacing also IL transformers when they go bad following safety procedures lock out tag out and keeping a two way communication with tower.

• Performed troubleshooting on fire alarm systems, completing on-site repairs or transporting malfunctioning equipment to off-site lab for repair.
• Offered online and voice-based support responses to customers' operational queries, providing remote ticket resolution or dispatching technicians as necessary.
• Maintained alarm hardware inventory levels, safeguarding component availability for emergency calls.
• Responded to maintenance calls and troubleshot devices.
• Tested all newly installed fire alarms.
• Integrated equipment installations with on-site network infrastructure, incorporating existing fire and life safety systems.
• Fully installed fire alarms and various security devices.
• Read and understood product manuals and blueprints.
• Advised customers on system upgrade opportunities, presenting cost and benefit documentation on prospective enhancements.
• Administered on-call responses for emergency service assignments, adhering to prescribed response timeframes.
• Installed and tested fire detection and suppression systems.
• Sustained ongoing expertise in fire and safety regulations, confirming compliance of installed systems.
• Performed annual inspections on fire and security alarm systems.
• Identified and reported fire code non-conformance issues to senior personnel and safety inspectors.