Mark Henry Inc.

03/16/2020

The Management and Staff at Mark Henry, Inc. (MHI) are monitoring the Coronavirus (COVID-19) situation and are following the Center for Disease Control (CDC) guidelines for public safety. The health of the communities we serve is our top priority as we continue to assess the impact to our employees, clients, and suppliers.

To ensure our clients businesses are supported we have taken specific steps as part of our business continuity plan. We will remain fully staffed with employees working from remote locations to service client goals. With our cloud-based systems—includes design tools such as Revit, AutoCAD, and Navisworks—work on your projects will continue uninterrupted.

This is a changing situation, and we will communicate with you as soon as possible if anything affects our operations.

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10/03/2018

With Carnivals, Circuses, Fairs, and similar events underway, . would like to remind the operators of these events that ALL 125 volt, single-phase,15 and 20 ampere non-locking type receptacles used for disassembly/reassembly, receptacles that are readily accessible to the general public, and equipment supplied from receptacles are to have Ground Fault Circuit Interrupter (GFCI) protection for personnel safety [NFPA70:525.23].

09/24/2018

The provisions of Article 517 Health Care Facilities (NFPA70:517) apply to the electrical construction and installation criteria in health care facilities providing services to human beings. Proper application of Article 517 starts with the classification of each patient care space within the facility. The staff of Mark Henry, Inc. is available to help you cost effectively navigate Article 517 of the National Electrical Code. .

09/14/2018

The Pennsylvania UCC Review and Advisory Council voted to adopt the majority of the 2015 ICC Commercial Codes with minor amendments. Effective 1 October 2018 the 2014 National Electric Code (NFPA70) will be the minimum standard within the Commonwealth of Pennsylvania.

01/03/2017

Congratulations to NorthPoint Development on the announcement that Post Consumer Brands will occupy the Eden Road Logistics Center in Springettsbury Township, PA.

http://www.ydr.com/story/news/2016/11/18/post-consumer-brands-move-into-eden-road-logistics-hub/94038546/

http://www.cpbj.com/article/20170103/CPBJ01/170109979/cerealmaker-expected-to-create-70-jobs-at-york-warehouse?utm_source=CPBJ+Daily&utm_medium=Email&utm_term=http%3a%2f%2fwww.cpbj.com%2farticle%2f20170103%2fCPBJ01%2f170109979%2fcerealmaker-expected-to-create-70-jobs-at-york-warehouse&utm_campaign=Cereal-maker+expected+to+create+70+jobs+at+York+warehouse

Post Consumer Brands has filed plans to move into into the newly-built Eden Road Logistics Center.

12/30/2016

Best wishes for a prosperous New Year.

12/21/2016

Warmest thoughts and best wishes for a wonderful holiday and a prosperous New Year.

08/13/2016

Manufactured Wiring Systems (MWS) are field installed wiring using off-site manufactured subassemblies for branch circuits, remote control circuits, signaling circuits, and communications circuits in accessible areas. MWS are permitted in accessible and dry locations, in ducts, plenums, and other air-handling space. Acceptable wiring methods include type AC and MC cable, flexible metal or liquid tight conduit, hard use cords, busway, and raceway. Permissible wiring methods shall be marked on each section of MWS. Receptacles and connectors used to feed MWS shall be the polarized locking type, identified for the purpose, and designed to prevent inadvertent contact with live part. All MWS wiring methods shall be listed for the intended use [NFPA70:604].

Cables used in MWS shall be a) listed for use, b) type AC or MC, c) furnished with insulated copper conductors, rated 600 volts, sized between 12 AWG to 8 AWG, and d) equipped with an insulated or uninsulated equipment grounding conductor of equivalent size to the ungrounded conductor [NFPA70:604(A)(1)].

Conduits used in MWS shall be a) listed for use, b) flexible metal conduit or liquid tight flexible conduit, c) furnished with insulated copper conductors, rated 600 volts, sized between 12 AWG to 8 AWG, and d) equipped with an insulated or uninsulated equipment grounding conductor of equivalent size to the ungrounded conductor [NFPA70:604(A)(2)].

Cords used in MWS shall be a) listed for hard use, b) part of a listed factory-made assembly, containing insulated copper conductors sized 12 AWG minimum, equipped with an equipment grounding conductor of equivalent size to the ungrounded conductor, and include an identified strain relief c) of a length not exceeding 6 ft, and d) installed so that the cord shall be visible for the entire length [NFPA70:604(A)(3)]

Busway used in MWS shall be a) listed continuous plug-in type, b) provided with factory mounted, bare or insulated copper or aluminum conductor bars, rods, or tubes, b) provided with an equipment ground, c) rated 600 volts, d) sized 20, 30, or 40 amperes, and e) installed in accordance with NFPA70:365 Busways [NFPA70:604(A)(4)].

Raceway used in MWS shall be a) listed for use, b) prewired, c) modular, d) surface mounted, e) rated 600 volts, f) sized 20 amperes, and g) installed in accordance with NFPA70:386 Surface Metal Raceways [NFPA70:604(A)(5)].

08/07/2016

Individual office furnishings of the freestanding type, or groups of individual office furnishings that are electrically connected, are mechanically contiguous, and do not exceed 30 feet when assembled, are permitted to be connected to the building electrical systems by a single flexible cord and plug provided that a) the flexible power supply cord is listed extra-hard usage with 12 AWG or larger conductors, b) the cord equipment grounding conductor is insulated, c) the cord is not greater than 2 ft in length, d) the receptacle suppling power shall be on a separate circuit serving only the office furnishing loads, e) the maximum number of receptacles outlets within the office furnishings does not exceed 13, and f) the office furnishings do not contain multi-wire circuits [NFPA70:605.9].

08/03/2016

. extends best wishes to all professional engineers in the celebration of Professional Engineers Day .