Nauman
I need some electrical work done in my apartment building and cant seem to locate a licensed electrician around my area. If you know any please help, thank you.
Answer
NY Licensed Electrician LIC# 011857
(718)-213-2448
24 Hour Emergency Service.
Superior service at affordable prices.
Manhattan, Brooklyn, Queens,
Quick response to restore power.
Licensed and insured.
All Types Electrical Work:
Commercial, Residential, Industrial.
Remodeling, New Construction, Alterations, Renovations, Maintenance.
Free onsite estimates for big jobs.
Free phone estimates for small jobs.
For small jobs same day service is available.
Services include but not limited to:
Residential & Commercial / New Construction & Remodel / Old House Rewiring
New home wiring / Service & Repair / Ceiling Fans / Window Ac Installations / Service Upgrades
Panel Upgrades / Service Panel Upgrades / Sub Panels / Fused panel to breakers conversion
Meter Upgrades / All Types Wiring, 110v, 208, 220v, 277v, 440v Volt Wiring
Trouble Shooting of / Factory and machine maintenance / Industrial equipment repair
All types switches / Dimmer Switches / Motion Sensor Switches / Timer Switches
Photo Cell Activated switches / Single Pole Switches / Three Way Switches /
Four Way Switches / Ceiling fan control Switches / All type outlets /
All type appliance circuits hard wired or outlets installed / Washing Machine /
Dryer Stove hoods / Oven / Range / Dishwashers / In or Under Cabinet Microwaves
Hot Water Heaters / Maintenance / Breakers and Fuses / Code Corrections
Outlets and Circuits / Recessed lights / Track lighting / Accent Lighting / Under Cabinet Lighting
High-Tech Troubleshooting / Dedicated Computer Circuits / Data / Communication Lines
Lighting Design & Maintenance / Security & Landscape Lighting / Surge Protectors / Motors
Exhaust Fans / Electric Water Heaters / Transformers / Smoke Detectors / Ground Fault Interrupt Circuits
Appliance Circuits / Hot Tubs and Spas / Priority Dispatching / Outdoor / Parking Lot Lighting /
HID Lighting and Control / Lighting Design / Motors / Transformers / Dedicated Computer Circuits / Data /
Communication Lines / Cat 5 Cabling / Ballasts / Lamp Replacing / 1 phase / 3 Phase Circuits /
Specialty Receptacles / Motor Controls / Lighting Contactors / Sign Repair / Twist Lock Receptacles /
Indoor & Outdoor Lighting / Fans - All Types / Ceiling Fans, Bathroom Exhaust Fans / AC Units /
Telephone Installation & Repair / Telephone jack Wiring, telephone Lines
Cat5 / CAT6 wiring and installation / Broadband/DSL/Cable wiring and installation / Low Voltage
Video Security & Intercom / Motion Detectors / Alarms / Smoke Detectors / Emergency Lighting
Exit Lighting / Chandeliers / Speaker Intercom Installations and Repairs / Photo Cells / Timer switches
Disconnects / Temp Service / GFCI Receptacles / Wire-mold, Electrical Metallic Tubing EMT / IMT / Rigid Pipe
110v and 220v Air Conditioner Outlets / Dedicated 110v AC Outlets Converted to 220v /
Dedicated 220v AC Outlets Converted to 110v /
and more...
NY Licensed Electrician LIC# 011857
(718)-213-2448
24 Hour Emergency Service.
Superior service at affordable prices.
Manhattan, Brooklyn, Queens,
Quick response to restore power.
Licensed and insured.
All Types Electrical Work:
Commercial, Residential, Industrial.
Remodeling, New Construction, Alterations, Renovations, Maintenance.
Free onsite estimates for big jobs.
Free phone estimates for small jobs.
For small jobs same day service is available.
Services include but not limited to:
Residential & Commercial / New Construction & Remodel / Old House Rewiring
New home wiring / Service & Repair / Ceiling Fans / Window Ac Installations / Service Upgrades
Panel Upgrades / Service Panel Upgrades / Sub Panels / Fused panel to breakers conversion
Meter Upgrades / All Types Wiring, 110v, 208, 220v, 277v, 440v Volt Wiring
Trouble Shooting of / Factory and machine maintenance / Industrial equipment repair
All types switches / Dimmer Switches / Motion Sensor Switches / Timer Switches
Photo Cell Activated switches / Single Pole Switches / Three Way Switches /
Four Way Switches / Ceiling fan control Switches / All type outlets /
All type appliance circuits hard wired or outlets installed / Washing Machine /
Dryer Stove hoods / Oven / Range / Dishwashers / In or Under Cabinet Microwaves
Hot Water Heaters / Maintenance / Breakers and Fuses / Code Corrections
Outlets and Circuits / Recessed lights / Track lighting / Accent Lighting / Under Cabinet Lighting
High-Tech Troubleshooting / Dedicated Computer Circuits / Data / Communication Lines
Lighting Design & Maintenance / Security & Landscape Lighting / Surge Protectors / Motors
Exhaust Fans / Electric Water Heaters / Transformers / Smoke Detectors / Ground Fault Interrupt Circuits
Appliance Circuits / Hot Tubs and Spas / Priority Dispatching / Outdoor / Parking Lot Lighting /
HID Lighting and Control / Lighting Design / Motors / Transformers / Dedicated Computer Circuits / Data /
Communication Lines / Cat 5 Cabling / Ballasts / Lamp Replacing / 1 phase / 3 Phase Circuits /
Specialty Receptacles / Motor Controls / Lighting Contactors / Sign Repair / Twist Lock Receptacles /
Indoor & Outdoor Lighting / Fans - All Types / Ceiling Fans, Bathroom Exhaust Fans / AC Units /
Telephone Installation & Repair / Telephone jack Wiring, telephone Lines
Cat5 / CAT6 wiring and installation / Broadband/DSL/Cable wiring and installation / Low Voltage
Video Security & Intercom / Motion Detectors / Alarms / Smoke Detectors / Emergency Lighting
Exit Lighting / Chandeliers / Speaker Intercom Installations and Repairs / Photo Cells / Timer switches
Disconnects / Temp Service / GFCI Receptacles / Wire-mold, Electrical Metallic Tubing EMT / IMT / Rigid Pipe
110v and 220v Air Conditioner Outlets / Dedicated 110v AC Outlets Converted to 220v /
Dedicated 220v AC Outlets Converted to 110v /
and more...
Is it necessary to ground the steel structure of an above ground pool?
We recently had the pump on our pool replaced. It is an 1.5 HP Hayward PowerFlo LX pump. According to the manual, the motor should be grounded to a ground strap. However, it also states the following:
Bond motor to pool structure. Use a solid copper conductor, size or larger. Run wire from external bonding lug to reinforcing rod or mesh. Connect a No. 8 AWG (8.4 mm²) solid copper bonding wire to the pressure wire connector provided on the motor housing and to all metal parts of swimming pool, spa, or hot tub, and to all electrical equipment, metal piping or conduit within 5 ft. (1.5 m) of inside walls of swimming pool, spa, or hot tub. (In Canada use No. 6 AWG
bonding wire.)
We understand the need to ground the pump motor. However, we have never heard of the need to ground the metal parts of the swimming pool itself. The motor and the pool are connected with plastic hoses. What is the reason to ground the pool structure?
In addition, can anyone tell me how many amps a 1.5 HP pump motor would pull?
Answer
Article 680 of the National Electrical Code states the requirements for swimming pools. It's quite elaborate, so let me give a summary and paraphrase in the process. I base this on the 2002 NEC. There is a newer version in effect.
In the definitions section (680.2), it defines permanently-installed pools and storable pools. Any pool that is in-ground, partially in-ground, or can hold water more than 42 inches deep without spilling is considered to be permanently-installed pool, as is any indoor pool regardless of water depth. Outdoor pools that are above ground and aren't deeper than 42 inch water depth, or have completely non-metallic walls, are considered to be storable pools. Caveat: Your local Authority Having Jusidiction (AHJ) may have a different interpretation.
The NEC makes a distinction between grounding and bonding.
In either type of pool, electrical equipment has to have an electrical grounding conductor (a.k.a. be grounded).
Permanently-installed pools have to have bonded together all (fixed) metal parts in the pool or outside the pool within 5 feet horizontally or overhead within various heights. This includes any metal structure, and the rebar or mesh in the pool walls (except for epoxy-coated rebar). There are a few limited exceptions.
Storable pools don't have the bonding requirement, but all electrical circuits have to be GFCI protected. They do have the grounding requirement, so your pump has to be grounded.
What the code doesn't say is this. Usually above-ground pools have portable filter pumps that are connected via flexible hose and via a power cord. The GFCI requirement and lack of bonding requirement make sense from the standpoint that budget-conscious above-ground pool owners are more likely to provide this level of protection than they are to go the bonding route. Permanent pools usually have buried piping and permanent electrical circuits that often are more extensive, so the opportunities for electrical shock increase, hence the bonding requirement.
And as an aside, long runs of wiring will tend to nuisance-trip a GFCI breaker, especially with underground circuits that are constantly in a wet environment. So applying GFCI protection can be more difficult in permanent installations.
The Hayward instructions appear to assume a permanent pool installation.
In your case, decide which type of installation you have and go from there. It doesn't hurt to have both bonding and GFCI protection. But it would be a mistake to have neither.
=====
Regarding motor amps, the NEC Article 430 requires usage of the following values for design purposes, for a typical 1.5HP single phase motor (Table 430.148):
115V: 20A
230V: 10A
200V: 11.5A
If you operate the motor on 208V single phase, use the 200V value (11.5A).
In terms of actual amps drawn, the value will be somewhat lower as the NEC values have an allowance to cover things such as tolerances, control circuit current, and inefficient motors.
I looked at the nameplate of a 1.5 HP Hayward PowerFlo LX pump. It stated 12.0A at 115V single phase. 12A is significantly less than 20A. The 20A governs for circuit calulcations, but the lower number is more appropriate for energy calculations.
That said, the actual amps drawn can be even less if the mechanical load on the motor presented by the pump is less than 1.5 HP.
Article 680 of the National Electrical Code states the requirements for swimming pools. It's quite elaborate, so let me give a summary and paraphrase in the process. I base this on the 2002 NEC. There is a newer version in effect.
In the definitions section (680.2), it defines permanently-installed pools and storable pools. Any pool that is in-ground, partially in-ground, or can hold water more than 42 inches deep without spilling is considered to be permanently-installed pool, as is any indoor pool regardless of water depth. Outdoor pools that are above ground and aren't deeper than 42 inch water depth, or have completely non-metallic walls, are considered to be storable pools. Caveat: Your local Authority Having Jusidiction (AHJ) may have a different interpretation.
The NEC makes a distinction between grounding and bonding.
In either type of pool, electrical equipment has to have an electrical grounding conductor (a.k.a. be grounded).
Permanently-installed pools have to have bonded together all (fixed) metal parts in the pool or outside the pool within 5 feet horizontally or overhead within various heights. This includes any metal structure, and the rebar or mesh in the pool walls (except for epoxy-coated rebar). There are a few limited exceptions.
Storable pools don't have the bonding requirement, but all electrical circuits have to be GFCI protected. They do have the grounding requirement, so your pump has to be grounded.
What the code doesn't say is this. Usually above-ground pools have portable filter pumps that are connected via flexible hose and via a power cord. The GFCI requirement and lack of bonding requirement make sense from the standpoint that budget-conscious above-ground pool owners are more likely to provide this level of protection than they are to go the bonding route. Permanent pools usually have buried piping and permanent electrical circuits that often are more extensive, so the opportunities for electrical shock increase, hence the bonding requirement.
And as an aside, long runs of wiring will tend to nuisance-trip a GFCI breaker, especially with underground circuits that are constantly in a wet environment. So applying GFCI protection can be more difficult in permanent installations.
The Hayward instructions appear to assume a permanent pool installation.
In your case, decide which type of installation you have and go from there. It doesn't hurt to have both bonding and GFCI protection. But it would be a mistake to have neither.
=====
Regarding motor amps, the NEC Article 430 requires usage of the following values for design purposes, for a typical 1.5HP single phase motor (Table 430.148):
115V: 20A
230V: 10A
200V: 11.5A
If you operate the motor on 208V single phase, use the 200V value (11.5A).
In terms of actual amps drawn, the value will be somewhat lower as the NEC values have an allowance to cover things such as tolerances, control circuit current, and inefficient motors.
I looked at the nameplate of a 1.5 HP Hayward PowerFlo LX pump. It stated 12.0A at 115V single phase. 12A is significantly less than 20A. The 20A governs for circuit calulcations, but the lower number is more appropriate for energy calculations.
That said, the actual amps drawn can be even less if the mechanical load on the motor presented by the pump is less than 1.5 HP.
Powered by Yahoo! Answers
Title Post: I need a licensed electrician in the New York City (NYC) Area?
Rating: 92% based on 9172 ratings. 4,3 user reviews.
Author: Unknown
Thanks For Coming To My Blog
Rating: 92% based on 9172 ratings. 4,3 user reviews.
Author: Unknown
Thanks For Coming To My Blog
No comments:
Post a Comment