Services
What is the minimum ampacity for a residential electrical service panel?
What is 100amps
What is the primary purpose of grounding?
What is to protect from electrical shock
What table in the NEC is commonly used for ampacity calculations?
What is Table 310.16
What does GFCI stand for?
What is Ground-Fault Circuit Interrupter
What NEC article covers requirements for spas and hot tubs?
What is Article 680
What is the minimum clearance above a residential roof for service conductors?
What is 8 feet
What is the minimum length of a ground rod required by the NEC?
What is 8 feet
What size copper wire is required for a 60A circuit?
What is #6 AWG
Where is GFCI protection required outdoors?
What is all outdoor receptacles?
What is the minimum distance a hot tub must be from overhead power lines?
What is 10 feet
What type of meter base is required for a 200A service?
What is a ringless meter base
What size copper grounding conductor is required for a 100A service?
What is #8 AWG
What does THHN stand for in conductor insulation?
What is Thermoplastic High Heat-resistant Nylon-coated
What testing method is used to verify the operation of a GFCI device?
What is pressing the "Test" button on the device?
What type of disconnect is required for a hot tub?
What is a readily accessible disconnect
What is the NEC requirement for the maximum height of a service disconnect switch?
What is 6 feet 7 inches
What is the NEC requirement for resistance to ground for a single rod electrode?
What is 25 ohms or less
What is the maximum allowable voltage drop in a branch circuit according to the NEC?
What is 3%
In what year did the NEC first require GFCI protection for bathroom receptacles?
What is 1975
What is the minimum GFCI protection required for a hot tub circuit?
What is all receptacles and equipment
How many service disconnects are allowed per service entrance?
What is 6
What table is used to determine grounding electrode conductor sizes?
What is Table 250.66?
What correction factor must be applied to conductors in a raceway with an ambient temperature of 105°F?
What is 0.87
How much current imbalance trips a GFCI?
What is 5 milliamps
What is the required minimum distance for a hot tub disconnect switch from the water’s edge?
What is 5 feet