Showing posts with label electrical. Show all posts
Showing posts with label electrical. Show all posts

Thursday, February 25, 2021

Altech Automation for Industry

 Altech Corp. Circuit Protection from Anderson-Bolds


For a Quote, Please click HERE!


In today's very competitive market place you need reliability, so you need to use circuit breakers that are high quality and technically correct for your application. Altech Corporation is the USA leader in DIN rail mounted breakers with ratings up to 63 amps. Only Altech offers DIN riail mounted breakers that meet UL 489, UL508 or UL1077 approvals with short circuit interrupt capacity up to 10kA. No other manufacturer offers this complete line. 


UL 489 Miniature Circuit Breakers, UL 508 Motor Controllers

UL 1077 Supplementary Protectors, Ground Fault Protectors (ELCIs)

UL 489  UL 508  UL1077  Busbar Devices

Altech Corp. Circuit Protectors
Motor Controllers, Ground Fault, Busbar
M-Series, R-Series, TR11 Series, V-EA Series, L series































For a Quote, Please click HERE!

Anderson-Bolds
216-360-9800
www.anderson-bolds.com

Tuesday, December 1, 2020

GFCI's and OSHA Violations

 GFCI Products to Remedy OSHA Violations

TRC GFCI 14650-006







An OSHA violation is a serious matter. Many of them can result in injury or death. Some violations are obvious and easy to spot while others require training and a comprehensive understanding of the requirements in order to detect them.

For example, improper Lockout/Tagout of energized equipment or machine guarding, although not simple, might be easier to notice and correct than electrical code violations that require a detailed understanding of the written rules and are likely to be unnoticed by many at the site.

Although most of the people understand basic electricity (e.g., not sticking metal objects into outlets,  it is still perceived as a very complicated topic.

However, not all electrical violations are complicated. Some basic OSHA-mandated safety requirements are very easy to spot and correct if one knows what to look for. Among the top ten most frequently cited standards violations for 2014-2015, electrical-related standards violations are number 8 and 10 on the list.


Top 10 Most Frequently Cited Standards violations for Fiscal 2015 (Oct. 1, 2014, to Sept. 30, 2015)

1.       Fall Protection (1926.501)

2.       Hazard Communication (1910.1200)

3.       Scaffolding (1926.451)

4.       Respiratory Protection (1910.134)

5.       Lockout/Tag Out (1910.147)

6.       Powered Industrial Trucks (1910.178)

7.       Ladders (1926.1053)

8.       Electrical – Wiring Methods (1910.305)

9.       Machine Guarding (1910.212)

10.     Electrical – General Requirements (1910.303)


Anderson-Bolds can help with Fall Protection, Lockout/Tag Out,

 Machine Guarding and Electrical (GFCIs).


30 Amp Inline GFCI with locking plugs





Now we are unlikely to be able to educate everyone on everything, but what we can achieve is to give some basic ideas on how these violations can be decreased and potentially save lives. If, as a result of this article, we save one life we could not be happier and it is sad to see people getting injured for something that is so easy to avoid.

So what exactly is so easy to fix? Use a work site Ground Fault Circuit Interrupter or GFCI for short! If you have employees working in a location that has temporary power, it is highly recommended to use a GFCI on every electrical circuit or service, even if there are no OSHA regulations requiring it.

For example , with the use of tools like wet vacs, power washers, wet saws or drills used to mix cement, it is a good practice to have GFCI’s installed to protect employees who work with this equipment. Per OSHA, all construction sites and construction site-like activities that use extension cords or certain equipment have to be GFCI protected2. As a rule of thumb, if you have power equipment outdoors, or near moisture/water you need to use GFCI-protected devices. OSHA estimates that since the GFCI requirement was implemented in 1970, the rule has saved more than 650 lives. That is one person a month since 1970!  

What is a GFCI? (Ground Fault Circuit Interrupter)

GFCI is an electrical device that measures the difference between output and input load current, opening whenever a difference is detected that could pose a safety hazard. If there is a current difference of more than 6 milliamps (mA), the GFCI unit will disconnect power to the load. Don’t be fooled into using a standard circuit breaker. Circuit breakers are designed to protect equipment not people!

GFCI’s come in a variety of forms and shapes, but for MRO or construction industries, the two most common options are right angle plug adapters or corded GFCIs that have a power cord and multiple output sockets. Each type might come with various additional features, especially the corded models. Corded models can offer different cord lengths from 2 ft up to 100 ft long, and also illuminated outlets and various socket configurations.

Something to remember is that socket multipliers and surge protectors are not the same as a Ground Fault Circuit Interrupter or GFCI for short. A GFCI is the only device designed specifically to protect people, whereas everything else is designed to protect equipment from damage due to high voltage transients. This is important to remember in order to choose the appropriate device for its intended application. If you have a device and you want to protect equipment from damaging power transients, then use a surge protector. However, if your primary concern is to protect employees, a GFCI is the only product capable of doing it.

A properly designed and manufactured GFCI unit will continue to provide protection when hazardous wiring conditions present. For example mis-wiring the neutral wire and a hot wire at the circuit breaker or outlet will not impede the GFCI’s ability to offer protection.

There are certain circumstances when a GFCI might not prevent a shock, such as when a person touches  both electric wires at the same time, offering a path from one wire in through one hand, through the body, and out on the other hand to the other electric wire. In this situation the GFCI will not sense a current imbalance and will not trip. This is a very important point to consider when training personnel working on equipment with GFCIs.

GFCI’s are intended to trip if current is passing through a path to ground; this could be from a tool or piece of equipment through the user. The GFCI is intended to trip quickly, so the user is not harmed.

It should be noted that a shock can be felt even with a GFCI, but the GFCI will trip quickly enough to avoid an injury.

When looking for a GFCI something to keep in mind is the design of the product. Although there are a lot of products available on the market, the most reliable products carry a UL approval. UL is the leading safety organization with best test and follow up practices. This ensures products are produced with safety critical aspects continually tested and validated in the factory. You might find some products that are few dollars cheaper, but do not carry UL approval and they may perform just as well. The key here is “may”. Products that have UL approval have undergone the most rigorous testing and follow up inspection, and so it should be the “product of choice” when personnel safety is important.

Having several of the GFCI products in your department is just as easy as having many extension cords. GFCI’s become second nature once employees are trained to use them. No one wants to get electrocuted or injured. It is very easy to use them and highly effective in any environment!

TRC HD-Pro 24646-001 30 Amp Unit










Repeating: What is a GFCI

A ground-fault occurs when there is a break in the low-resistance grounding path from a tool or electrical system. The electrical current may then take an alternative path to the ground through the user, resulting in serious injuries or death. The ground-fault circuit interrupter, or GFCI, is a fast-acting circuit breaker designed to shut off electric power in the event of a ground-fault within as little as 1/40 of a second. It works by comparing the amount of current going to and returning from equipment along the circuit conductors. When the amount going differs from the amount returning by approximately 5 milliamperes, the GFCI interrupts the current.

The GFCI is rated to trip quickly enough to prevent an electrical incident. If it is properly installed and maintained, this will happen as soon as the faulty tool is plugged in. If the grounding conductor is not intact or of low-impedance, the GFCI may not trip until a person provides a path. In this case, the person will receive a shock, but the GFCI should trip so quickly that the shock will not be harmful.

The GFCI will not protect you from line contact hazards (i.e. a person holding two "hot" wires, a hot and a neutral wire in each hand, or contacting an overhead power line). However, it protects against the most common form of electrical shock hazard, the ground-fault. It also protects against fires, overheating, and destruction of wire insulation.

View Anderson-Bolds Safety Equipment HERE!

Anderson-Bolds
216-360-9800
www.anderson-bolds.com

GFCI...GFCI...GFCI...GFCI...GFCI...GFCI...GFCI...GFCI

Monday, November 15, 2010

IMS Electric Meters, Integrated Metering Systems


Integrated Metering Systems, Inexpensive Electric Meters
IMS - Integrated Metering Systems

Since 1989 IMS has been manufacturing current transformer (CT) rated electric submeters. These products quantify electrical energy for dozens of applications, including tenant billing, energy management, solar PV production, cost accounting, or any other application where an accurate, easy-to-install electric meter is required.

Unlike most electric utility meters, our revenue grade CT-rated meters do not plug into a meter socket, so there is no need to re-route power wires. No other electronic meter manufacturer has the confidence and experience to offer a ten-year warranty, and our unique and diverse array of product offerings cover almost any residential, commercial, or industrial application. Our commitment is to 100% customer satisfaction!

Mini Meters

Designed for residential applications, these 100A, 200A, and 400A electric submeters are perfect for metering electric consumption or production for nearly any 120V 2-wire or 120/240V 3-wire application. These revenue-grade single phase (120V 2-wire or 120/240V 3-wire) kWh meters make tenant submetering a snap! Available in indoor flush-mount, outdoor surface-mount, or NEMA 4X Multiple Meter Units (MMUs). Also available in UL Listed, NEMA 4X Multiple Meter Units (MMUs), with up to nineteen meters per enclosure.

Key Features

  • Small size
  • Utility (revenue) grade solid core or easy-to-install split core Current Transformers (CTs)
  • Authorized to apply the UL Mark
  • Approved by Maryland Public Service Commission
  • Approved by California Division of Measurement Standards
  • Approved 2% meter under the California Solar Initiative's PBI program
  • Ten-year warranty

1000 Series

This kWh meter with optional demand function has a large LCD display, pulse outputs, and an RS485 serial port for remote monitoring. Available in an indoor steel or outdoor NEMA 4X enclosure (see links at left), which both are UL Listed.

Models in this series come in the following voltage ratings and configurations:

  • 1 Ph, 2-Wire, 120V
  • 1 Ph, 3-Wire, 120/240V or 2 PH, 3-Wire, 120/208V (same model works with either configuration)
  • 1 Ph, 2-Wire, 277V
  • 2 Ph, 3-Wire, 277/480V

Key Features

  • Large LCD Display showing kWh and (optionally) instantaneous and peak demand with manual keyed reset
  • Utility (revenue) grade solid core or easy-to-install split core Current Transformers (CTs)
  • Reverse energy LED indicator helps ensure proper installation
  • UL Listed
  • Approved by Maryland Public Service Commission
  • Same low price for indoor steel or outdoor NEMA 4X non-metallic enclosure
  • Approved 2% meter under the California Solar Initiative's PBI program
  • Ten-year warranty

2000 Series

Designed for industrial and commercial applications, this UL Listed Three Phase 4-wire revenue grade kilowatt-hour Demand meter is an excellent low-cost option. It features a large LCD display, pulse outputs, an RS-485 serial port, and a ten-year warranty. Same low price for either indoor steel or outdoor NEMA-4X enclosure!

Key Features

  • Large LCD Display showing kWh and (optionally) instantaneous and peak demand with manual keyed reset
  • Utility (revenue) grade solid core or easy-to-install split core Current Transformers (CTs)
  • Reverse energy LED indicator helps ensure proper installation
  • UL Listed
  • Approved by Maryland Public Service Commission
  • Same low price for indoor steel or outdoor NEMA 4X non-metallic enclosure
  • Approved 2% meter under the California Solar Initiative's PBI program
  • Ten-year warranty

3000 Series Multi-Function Smart Meter

(UL Listing Pending. Available Winter 2010)

The IMS 3000 Series Smart Meter line offers more features and functionality than anything ever manufactured by IMS. Incorporating the latest technology and our decades of energy meter design and manufacturing experience, these products will be suitable for a number of energy monitoring, management, and billing applications, all at a remarkably low introductory price. As always, these products come with the IMS ten-year warranty.

Standard Features, All Models

  • kWh, maximum demand, and instantaneous power on LCD display and over Modbus serial port
  • Same meter for 3PH 3W Delta or 3PH 4W Y configurations, 208V or 480V
  • Revenue-grade accuracy with solid-core CTs, or easy to install split core CTs
  • Wide operating range with automatic temperature compensation for maximum accuracy (0.5% error max under all conditions with IMS solid core CTs)
  • Large custom LCD display with scroll button
  • 12VDC mechanical counter output
  • Auxiliary 12VDC output @ 200mA for powering wireless AMR devices
  • Two isolated pulse outputs (kWh & 10wh)
  • Low voltage detection
  • Reverse energy indicators (per phase) on display to ensure correct meter installation

Standard Features on Modbus Serial Port

  • kWh, Max. Demand (kW), Frequency (Hz)
  • Volts, Amps, Watts, VA, and PF per phase
  • Time of Use Metering: Built-in data logger stores kWh, Volts, Amps, and Watts, with date & time stamp from real time clock (65 days of data storage @ 15 minute intervals)

Optional Features

  • Volts, Amps, Watts, VA, and PF per phase on display
  • Bidirectional Metering (kWh; bidirectional Demand upon request)
  • BACnet interface
  • Ethernet interface (IP addressable)
  • Battery backup for real time clock

Current Transformers

Split Core vs. Solid

Should I order split core or solid core CT's? What's the difference?

Solid Core

Solid core Current Transformers (CTs) look like donuts with wires attached. These ring-shaped devices slip over the power lines and measure the electrical current flowing through the line. The CT "secondary" wires connect to the meter, facilitating power and energy calculations.

Solid core CTs are very accurate (0.3% maximum error), small in size, and inexpensive. However, power must be turned off and the circuit opened, generally at a circuit breaker, so that the solid core CT can be slipped over the power line. After installation the power wire must be reconnected to close the electrical circuit. Installation usually only takes a minute or two per CT.

Split Core

Split core CTs can be taken apart, or ‘split' into halves, which negates the need to turn power off and open the circuit during installation. This saves a little installation time, and for critical loads that cannot be switched off, split core CTs are a must. However, split core CTs are more expensive, bulkier, and not as accurate as solid core CTs.


www.anderson-bolds.com

216-360-9800

Tuesday, August 4, 2009

Solenoid Valves

Solenoid Valves come in all shapes and sizes and all means of operation. For automation needs, the solenoid valve is the valve of choice.

This will be a brief discussion of the common solenoid valve used in industry today.

A solenoid valve is a combination of a valve body the allows a media to flow through it, water, air, oil and a coil that with a voltage applied energizes a magnetic coil to move a plunger that allows the valve to either open or close. Solenoid valves can be signaled by sensors within a plant via an electrical signal thus an operation can then be achieved.

Solenoid valves come in three basic styles, two way, three way and four way valves. The Two way valves have two ports, an inlet and outlet. The valves can be either normally open or normally closed.
Normally Closed is the more common style as it requires power to open and will close in a power failure.

Three way solenoid valves are designed for operating cylinders, air operated control valves and in some cases diverting flow between two directions. 3-way valves can come in normally open, normally closed and universal operation. Universal operation requires a direct acting valve, normally a small size valve, 1/8, 1/4 or 3/8 ports.

Four way valves are also designed for operating cylinders and valves and can have two solenoids on them, one for each of the two operations.

The valves can come in different body materials, stainless steel, brass, PVC, Teflon or other. The most common is brass and stainless steel. Seals can be Nitrile, viton, neoprene, or Teflon to name the most common. The different seals have different temperature properties and corrosion resistance.

Most solenoid valves come with a NEMA 4X coil, good for washdown and submersion in water. Also available are nema 7/9 or explosion proof and DIN style connections.

Anderson-Bolds stocks valves from Parker and ASCO. We can also provide specialty valves from Valcor.

www.anderson-bolds.com

216-360-9800