Electrical Contracting Services- FAQs

Frequently Asked Questions on Electrical Contracting Services

An Electrical contractor is a business person or firm that performs specialized construction work related to the design, installation, and maintenance of electricalsystems. Electricians may work for an electrical contractor, or directly for individuals or companies.

The major difference between Contactors and Relays are though they perform the same task of switching a circuit, both are electromagnetic switches and operate under similar principles. The difference comes if we see from the application perspective. Contactors are used for high voltage switching purposes whereas relays are used for low voltage switching.

NO stands for Normally Open i.e. the contacts are Normally Open and close when the switch is actuated. Whereas NC stands for Normally Closed i.e. the contacts are normally closed and open when the switch is actuated. 1NO & 1NC are generally used to describe contactors (Industrial Power Relays) and manual switches like Emergency Stop Buttons.

When a short circuit happens, the reason is simply a low resistance connection between the two conductors supplying electrical power to any circuit. This results in excessive current flow in the power source through the ‘short,’ and may even cause the power source to be destroyed.

To fix the Short Circuit firstly install the adapter and breaker in the fuse box. Then find the short with the meter. Open the wiring harness and locate the chafed or shorted wires and repair them with electrical tape. Reinstall the fuse and test the circuit.

When a light bulb burns out in a Series Circuit, if one of the bulb was unscrewed, the current flow to both the bulbs would be interrupted. If the circuit were a string of light bulbs, and one burned out. Then remaining bulbs would also turn off. Reason being it works similarly like the working of the same current flowing through each part of a series circuit.

A Ground fault indicator is a device which provides visual or remote indication of a fault on the electric power. Also called a faulted circuit indicator (FCI), the device is used in electric power distribution networks, it automatically detects and identifys  faults to reduce outage time.

These are the few key indicators when fuse goes out : All the lights Turn off and unplug a few appliances in the room or rooms that have lost power. Locate and open your electrical panel. Its always adviced to use this cautions, For circuit breakers: Look for a breaker that has moved from the “ON” position to the “OFF” position, or is halfway between the two.

A Circuit Breaker “trips” or shuts off the electrical flow to protect the circuit from overheating and causing damage, even possibly an electrical fire. So, before you go and flip the switch on again, take a moment to determine what the root cause is of the tripping. The three typical causes are: Overloaded Circuit, Short Circuit & Ground Fault

A Ground Fault occurs when electricity travels through ground, instead of the intended path back to its source. More than 80% of electrical failures in equipment are ground faults caused by worn insulation, conductive dust or moisture. Deteriorated insulation on wires and cables cause 90% of these events.

Yes, we offer a wide range of references on our “Projects Executed” page. Other references can be made available upon request.

Apollo with the dedicated team handles Planning & Execution of Industrial Electrification (LT & HT) including Sub-station, EHT works (Transmission lines, Tower & substation works), Distribution panels, PCC /MCC, Room Acoustics. Apollo facilitates & assists clients with Estimation & Costing, BOQ Generation, and Tender Docs preparation.

Yes, for all most all jobs regardless of the scope will need to have a permit issued. While there are some cities that do their electrical inspections, of the state are inspected by Labor and Industries department. Keep in mind that electrical contractors need to purchase their own permits to work on your property. If you have hired a contractor who seems hesitant to purchase an electrical permit. Then it is wise to think twice about hiring them. Typically, this means that they are not licensed or insured to work in your location.

The types of Electrical Licenses an electrician can apply for are – Electrical Contractor license, Residential Electrical Contractor, Class A Master Electrician, Class B Master Electrician, Residential Master, Class A Journeyman Electrician, Class B Journeyman Electrician, Residential Electrician, Apprentice Electrician, Special Electrician, and Unclassified Person.

G.F.I. – Ground fault circuit interrupter, NEC – National Electric Code, BPU- Board of Public Utalities & AFCI – Arc Fault Circuit Interrupter

Tamper-Resistant Receptacle is a type of electric outlet. The NEC (National Electric Code) requires to be installed in all newly constructed/renovated. It is designed to protect children from shock and burns. This is due to their sticking small metal objects (for example, paper clips or keys) into the receptacle.

When you want to plug several devices into the same receptacle at the same time. A rotating outlet will allow you to rotate this individual plug-ins. These plug-ins rotate as much as 360 degrees, so that they will all fit in nicely.

GFCIs can be should be installed in all wet locations including unfinished basements, garages, anywhere outside the dwelling. But within six feet of any sink, kitchens, bathrooms and powder rooms.

Yes, We’ll work with you or your builder, help in providing a complete electrical service. Helping you with advice to save on energy bills and include the latest technology.

If Yes! our experienced and highly qualified electricians will have you up and running in no time, with minimal disruption.