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2005
CONSTRUCTION REQUIREMENTS
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TABLE
OF CONTENTS |
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CLICK
HERE TO DOWNLOAD PRINTABLE PDF VERSION
ARTICLE 100 - General Information
101 - Purpose
102 – Electrical Clearance Requirements
For New Construction
103 – Mixed Use Construction
ARTICLE 200 – Underground Residential Subdivisions
201 – Purpose
202 – Plans
203 – Electrical Layout
204 – Site Work
205 – Department Work
206 – Department Responsibilities
207 – Developer Responsibilities
208 – Trench
209 – Embankments and Slopes
210 – Conduit System
211 – Easement
212 – Cost
213 – Street Lighting
214 – Agreement
ARTICLE 300 – Commercial/Industrial Developments
301 – Purpose
302 – Plans
303 – Electrical Layout
304 – Site Work
305 – Department Work
306 – Department Responsibilities
307 – Developer Responsibilities
308 – Easement
309 – Cost
310 – Agreement
ARTICLE 400 – Residential Developments Served
by a Three-Phase Distribution System
401 – Purpose
402 – Plans
403 – Electrical Layout
404 – Site Work
405 – Department Work
406 – Department Responsibilities
407 – Developer Responsibilities
408 – Conduit System
409 – Easement
410 – Cost
411– Street Lighting
412 – Agreement
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ARTICLE
100 |
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General Information
101 – Purpose.
Construction Requirements For New Developments -- Residential
and Commercial/Industrial is issued to provide information
to Mansfield Municipal Electric Department (“Department”)
Customers, Developers, Electrical Contractors, Architects
and Engineers, in order that electrical installations to
be connected to the Department’s system may be performed
in a standard, uniform and proper manner. The requirements
contained herein are supplementary to the Department’s
Schedule of Rates and Terms and Conditions as filed from
time to time with the Massachusetts Department of Telecommunications
and Energy (“MDTE”), as well as the Department’s
Information and Requirements for Electric Service and Customer
Service Terms and Conditions booklets, all of which are
available from the Department.
This booklet is not intended to provide complete coverage
of wiring details and other lawful requirements. It has
been prepared as a guide and is supplementary to all applicable
National, State and Local Electrical Codes, Safety Codes,
OSHA requirements, and to ordinances passed by authorities
having jurisdiction. The issuance of this booklet by the
Department shall not be construed as relieving the developer
and/or their contractor from the responsibility of installing
wiring in accordance with the Rules and Regulations published
by authorities having jurisdiction, nor shall the Department
be deemed thereby to have accepted any responsibility for
the condition of the developer’s wiring and equipment.
The information in this booklet deals only with requirements
for electrical service. It is not the Department’s
duty to coordinate other utilities installations or facilities.
The developer is hereby advised to contact other utilities
in a timely manner for their requirements.
Service can only be supplied pursuant to an Authorized
agent of the Department. No agent or employee of the Department
is authorized to orally modify any term, provision or rate
of the Department.
102 – Electrical
Clearance Requirements For New Construction. A new building,
renovated existing building or an addition to an existing
building shall be designed such that it meets all National
Electrical Safety Code clearance requirements before construction
work can begin. Clearance from a building structure shall
be defined as the distance from any part of the building
to any point of any Department facility.
This shall apply to both above ground Department facilities,
such as clearance from the building to overhead high voltage
lines or secondary lines, as well as ground level Department
facilities, such as clearance from the building to a pad
mounted device (i.e. a transformer).
If the new building, renovated existing building or addition
to an existing building as designed fails to meet all current
National Electrical Safety Code clearance requirements,
the building owner shall be responsible for the total cost
for the Department to correct the clearance violation(s)
prior to building construction.
Similarly, should the new building, renovated existing
building or addition to an existing building as constructed
fail to meet all current National Electrical Safety Code
clearance requirements, the building owner shall be responsible
for the total cost for the Department to correct the clearance
violation(s) as soon as possible. Remedy of the violation
shall not include consideration of any other utilities infrastructure
that may also be in violation or impacted by the Department’s
work.
A representative of the Department is available at any
time to review building plans for clearance related issues.
103 – Mixed Use
Construction. Mixed use facilities combine commercial and
residential use in one building. Mixed use construction
shall be billed at the Department’s sole discretion.
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ARTICLE 200 |
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Underground Residential Subdivisions
201 – Purpose.
In residential subdivisions designated for underground utilities
by the Planning Board, the Department will provide an underground
distribution system under the following terms and conditions.
If the Department decides to serve the residential development
with a three-phase distribution system, at its sole discretion,
the development will fall under Article 400 – Residential
Developments Served by a Three-Phase Distribution System.
202 – Plans. The
developer will provide one electronic copy, in the Department’s
requested format, of the approved subdivision plan as well
as two hard copies of the plan.
203 – Electrical
Layout. The Department will design and document the electrical
distribution system and return it for review by the developer.
The electrical layout will show the approximate location
of the riser pole, high voltage conduit, transformer foundations,
handholes, secondary conduits and street lights. An on-site
meeting, including the Department and the developer, is
required to review the Department’s plan before site
work preparation can take place.
204 – Site Work.
The developer will perform all excavation and install all
conduit, transformer foundations, handholes and street lights
as shown on the plan supplied by the Department.
205 – Department
Work. The Department will install and connect all high voltage
cable, transformers and secondary cables from transformers
to handholes. See Section 212 for cost to the developer.
206 – Department
Responsibilities. The Department will provide to the developer:
· Specifications for all materials required to be
provided and installed by the developer.
· Transformers, high voltage and secondary cable
(except services) and meters.
· Fiberglass service handhole(s).
· Fiberglass transformer pad foundation(s).
See Section 212 for cost to the developer.
207 – Developer
Responsibilities. The developer will provide and install
(at no charge to the Department), per the Department’s
specifications:
· 2-4” PVC conduit – type EB35 or schedule
40.
· 4” PVC sweeps – type EB35 or schedule
40.
· 3000 PSI concrete encased electric conduit.
· 500 pound pull string in all conduit.
· Street light pole(s) and fixture(s) (if required).
See Section 213.
· 4” Galvanized steel conduit for riser pole
(10’ up the pole).
· 36” Galvanized steel sweep for riser pole.
· The developer provided materials are not included
in costs assessed in Section 212.
208 – Trench.
Please note that before any backfilling or concrete encasement
is done, trench work must be inspected by the Department.
Allow 48 hours notice for a Department representative to
schedule a trench inspection.
209 – Embankments
and Slopes. If a transformer or handhole location must be
in an embankment, it shall be the responsibility of the
developer to clear and level an area adequate for proper
installation and to provide a retaining wall to protect
the installation. Similarly, if a transformer or handhole
must be placed on a downslope, the developer shall build
up and level an area suitable for a proper installation
and provide an acceptable means to protect against washout.
210 – Conduit
System. The developer shall convey ownership of the conduit
system, excluding secondary service conduit on private property,
to the Department upon inspection and acceptance by the
Department and upon the roadway becoming an accepted public
way.
211 – Easement.
Where it is required that the Department’s facilities
be located on private property, the owners of record shall
grant to the Department, without cost to the Department,
perpetual rights and easements free and clear of encumbrances
of record, including rights to ingress and egress, to the
extent the Department deems the same necessary for the safe
and adequate provision of electric service, and the form
and the content of such rights and easement shall be acceptable
to and approved by the Department’s property attorney.
The Department reserves the right to not energize the system
nor install any electrical facilities prior to the Department
receiving an executed easement that is satisfactory to the
Department’s property attorney. If the easement is
not executed in a timely manner, a legally binding agreement
shall be executed detailing the property owner’s intent
to grant an easement to the Department.
Under such circumstances, delays to service connections
can be avoided by applying for service at the earliest possible
date. Any questions or details pertaining to the required
easement should be clarified with the Department.
212 – Cost. For
Planning Board approved subdivisions with no existing electric
facilities, a fee of $1,350 per house lot will be assessed.
This fee will be paid based on the number of house lots
in the subdivision prior to the start of construction of
electric facilities within the subdivision. In the case
of subdivisions where the Planning Board has agreed to allow
construction to proceed in “phases”, the fee
shall be paid based on each house lot in a given phase prior
to the start of construction of electric facilities.
Note: These fees must be paid at the time the application
for service is made.
See also Section 213 for street light fees required.
213 – Street Lighting.
For subdivisions requiring street lighting, the developer
will own and maintain the street light system until the
street becomes an accepted public way. The developer shall
supply the street light pole(s) and fixture(s) per Department
specifications. The developer shall install the fixture
per Department specifications as well as the secondary supply
for the street light. Please note that the Department shall
install the street light head(s) and connect the street
light wires at the source end. Prior to the Department energizing
a street light, the developer shall submit a $100.00 deposit
per light at the Department’s business office to pay
for the cost of street light electricity. The developer
is responsible for the cost of electricity for the street
lights until the street becomes an accepted public way.
214 – Agreement.
A written agreement will be prepared and signed by both
the Department and the developer stating the terms and conditions
under which the Department will extend service.
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ARTICLE 300 |
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Commercial/Industrial Developments
301 – Purpose.
In commercial/industrial developments designated for underground
utilities by the Planning Board, the Department will provide
an underground distribution system under the terms and conditions
outlined herein.
These terms and conditions shall also apply to individual
commercial and/or industrial customer’s new or upgraded
service installations. Existing commercial and/or industrial
customers increasing their service size shall follow all
the applicable terms and conditions in this booklet. In
some cases these individual commercial and/or industrial
customers may be served from an overhead line extension
at the Department’s sole discretion.
This booklet is not intended to provide specific construction
details for commercial and industrial electrical designs
but rather general information.
302 – Plans. The
developer will provide one electronic copy, in the Department’s
requested format, of the approved developments plan as well
as two hard copies of the plan.
303 – Electrical
Layout. The Department will design and document the electrical
distribution system and return it for review by the developer.
The electrical layout will show the approximate location
of the riser pole, high voltage conduit, manholes, high
voltage switchgear, transformer vaults, and handholes. An
on-site meeting, including the Department and the developer,
is required to review the site work before site work preparation
can take place.
304 – Site Work.
The developer will perform all excavation and install all
concrete encased duct banks, transformer vaults, protective
bollards, and manholes as shown on the plan as marked up
by the Department.
If this is an individual commercial and/or industrial customer
served by an overhead line extension, the Department shall
install, own and maintain the pole line. See Section 309
for cost.
305 – Department
Work. See Section 309 for cost. The Department will install
and connect all high voltage cable, transformers, and meters.
If this is an individual commercial and/or industrial customer
served by an overhead line extension, the Department shall
install, own and maintain the pole line.
306 – Department
Responsibilities. The Department will provide to the developer:
· Specifications for all materials required to be
provided and installed by the developer.
· Provide and install all high voltage cable, related
high voltage equipment, and meters. Provide and install
transformers up to 500 KVA. Transformers over 500 KVA will
be allowed, provided the developer installs, owns and maintains
the transformers and any associated protective devices and
switchgear necessary for the installation. Developer supplied
transformers over 500 KVA must meet specifications supplied
by the Department.
· Provide and install pole line as required.
The Department’s electrical design will include specifications
for all vaults, pads, manholes, conduits and any other appurtenances.
This plan will be sent to the developer as required in Section
303.
See Section 309 for cost to developer.
307 – Developer
Responsibilities. The developer, at no charge to the Department,
will provide and install, as per the Department’s
specifications:
· Easement as required. See Section 308.
· Transformer vaults and/or foundations, handholes,
manholes, grounding systems, and conduit including spacers,
glue and pulling strings and any other appurtenances as
indicated on the Department’s plan.
· Secondary services and service conduit from the
Department’s equipment to each designated meter location.
· The developer shall retain ownership and maintain
responsibility for all high voltage conduit systems, transformer
foundations and grounding systems and all secondary cables
and secondary conduit.
· The high voltage conduit bank is typically 2-5”
type EB 35 or schedule 40 conduits encased in 3000 PSI concrete.
· 500 pound pull string in all conduit.
· 5” Galvanized steel conduit for riser pole
(10’ up the pole).
· 36” Galvanized steel sweep for riser pole.
Service installations that include indoor transformers,
associated protective devices and switchgear necessary for
the electrical service to the Customer shall be installed,
owned and maintained by the Customer.
308 – Easement.
Where it is required that the Department’s facilities
be located on private property, the owners of record shall
grant to the Department, without cost to the Department,
perpetual rights and easements free and clear of encumbrances
of record, including rights to ingress and egress, to the
extent the Department deems the same necessary for the safe
and adequate provision of electric service, and the form
and the content of such rights and easement shall be acceptable
to and approved by the Department’s property attorney.
The Department reserves the right to not energize the system
nor install any electrical facilities prior to the Department
receiving an executed easement that is satisfactory to the
Department’s property attorney. If the easement is
not executed in a timely manner, a legally binding agreement
shall be executed detailing the property owner’s intent
to grant an easement to the Department.
Under such circumstances, delays to service connections
can be avoided by applying for service at the earliest possible
date. Any questions or details pertaining to the required
easement should be clarified with the Department.
309 – Cost. The
Department will furnish and install electrical facilities
as described above at the expense of the developer. The
Department will prepare an estimate of applicable charges
for the developer. The estimated cost of the Department’s
work shall be paid prior to construction.
310 – Agreement.
A written agreement will be prepared and signed by both
the Department and the developer stating the terms and conditions
under which the Department will extend service.
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ARTICLE 400 |
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Residential Developments Served by a Three-Phase
Distribution System
401 – Purpose.
Article 400 applies to residential developments that the
Department, at its sole discretion, decides to serve with
a three-phase distribution system. In residential developments
designated for underground utilities by the Planning Board,
the Department will provide an underground distribution
system under the following terms and conditions.
402 – Plans. The
developer will provide one electronic copy, in the Department’s
requested format, of the approved subdivision plan as well
as two hard copies of the plan.
403 – Electrical
Layout. The Department will design and document the electrical
distribution system and return it for review by the developer.
The electrical layout will show the approximate location
of the riser pole, high voltage conduit, manholes, high
voltage switchgear, transformer vaults, street lights and
handholes. An on-site meeting, including the Department
and the developer, is required to review the site work before
site work preparation can take place.
404 – Site Work.
The developer will perform all excavation and install all
concrete encased duct banks, transformer vaults, handholes,
transformer pads, protective bollards, street lights and
manholes as shown on the plan as marked up by the Department.
405 – Department
Work. See Section 410 for cost. The Department will install
and connect all high voltage cable, transformers, and meters.
406 – Department
Responsibilities. The Department will provide to the developer:
· Specifications for all materials required to be
provided and installed by the developer.
· Provide and install all high voltage cable, related
high voltage equipment, and meters. Provide and install
transformers up to 500 KVA. Transformers over 500 KVA will
be allowed, provided the Customer installs, owns and maintains
the transformers and any associated protective devices and
switchgear necessary for the installation. Customer supplied
transformers over 500 KVA must meet specifications supplied
by the Department.
· Fiberglass service handhole(s)
· Fiberglass transformer pad foundation(s)
· Provide and install pole line as required.
See Section 410 for cost to developer:
407 – Developer
Responsibilities. The developer, at no charge to the Department,
will provide and install, as per the Department’s
specifications:
· Easement as required. See Section 409.
· Transformer vaults and/or foundations, handholes,
manholes, grounding systems, and conduit including spacers,
glue and pulling strings and any other appurtenances as
indicated on the Department’s plan.
· Secondary services and service conduit from the
Department’s equipment to each designated meter location.
· The high voltage conduit bank is typically 2-5”
type EB 35 or schedule 40 conduits encased in 3000 PSI concrete.
· 500 pound pull string in all conduit.
· 5” Galvanized steel conduit for riser pole
(10’ up the pole).
· 36” Galvanized steel sweep for riser pole.
· Street light pole(s) and fixture(s) (if required).
See Section 411.
· Transformer vaults and manholes as designated by
the Department’s plan.
· The developer provided materials are not included
in costs assessed in Section 410.
408 – Conduit
System. The developer shall convey ownership of the conduit
system, excluding high voltage and secondary service conduit
on private property, to the Department, upon inspection
and acceptance by the Department and upon the roadway becoming
an accepted public way.
409 – Easement.
Where it is required that the Department’s facilities
be located on private property, the owners of record shall
grant to the Department, without cost to the Department,
perpetual rights and easements free and clear of encumbrances
of record, including rights to ingress and egress, to the
extent the Department deems the same necessary for the safe
and adequate provision of electric service, and the form
and the content of such rights and easement shall be acceptable
to and approved by the Department’s property attorney.
The Department reserves the right to not energize the system
nor install any electrical facilities prior to the Department
receiving an executed easement that is satisfactory to the
Department’s property attorney. If the easement is
not executed in a timely manner, a legally binding agreement
shall be executed detailing the property owner’s intent
to grant an easement to the Department.
Under such circumstances, delays to service connections
can be avoided by applying for service at the earliest possible
date. Any questions or details pertaining to the required
easement should be clarified with the Department.
410 – Cost. The
Department will furnish and install electrical facilities
as described above at the expense of the developer. The
Department will prepare an estimate of applicable charges
for the developer. The estimated cost of the Department’s
work shall be paid prior to construction.
411 – Street Lighting.
For Developments requiring street lighting, the developer
will own and maintain the street light system until the
street becomes an accepted public way. The developer shall
supply the street light pole(s) and fixture(s) per the Department’s
specifications. The developer shall install the fixture
per Department specifications as well as the secondary supply
for the street light. Please note that the Department shall
install the street light head(s) and connect the street
light wires at the source end. Prior to the Department energizing
a street light, the developer shall submit a $100.00 deposit
per light at the Department’s business office to pay
for the cost of street light electricity. The developer
is responsible to pay for the cost of electricity of the
street lights until the street becomes an accepted public
way.
412 – Agreement.
A written agreement will be prepared and signed by both
the Department and the developer stating the terms and conditions
under which the Department will extend service.
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