Exhibit 4-A



                              TRUST AGREEMENT OF
                          DELMARVA POWER FINANCING I



          This TRUST AGREEMENT of Delmarva Power Financing I (the "Trust"),
dated as of June 27, 1996, among (i) Delmarva Power & Light Company, a Delaware
and Virginia corporation (the "Depositor"), (ii) Wilmington Trust Company, a
Delaware banking corporation, not in its individual capacity but solely as
trustee of the Trust, and (iii) Barbara S. Graham, an individual employed by the
Depositor, not in her individual capacity but solely as administrative trustee
of the Trust (each of such trustees in (ii) and (iii) a "Trustee" and
collectively, the "Trustees"). The Depositor and the Trustees hereby agree as
follows:

          1.   The Trust created hereby shall be known as "Delmarva Power
Financing I", in which name the Trustees, or the Depositor to the extent
provided herein, may conduct the business of the Trust, make and execute
contracts, and sue and be sued.

          2.   The Depositor hereby assigns, transfers, conveys and sets over to
the Trustees the sum of $10. The Trustees hereby acknowledge receipt of such
amount in trust from the Depositor, which amount shall constitute the initial
trust estate. The Trustees hereby declare that they will hold the trust estate
in trust for the Depositor. It is the intention of the parties hereto that the
Trust created hereby constitute a business trust under Chapter 38 of Title 12 of
the Delaware Code, 12 Del. C. (S) 3801 et seq. (the "Business Trust Act"), and
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that this document constitutes the governing instrument of the Trust. The
Trustees hereby are authorized

 
and directed to execute and file a certificate of trust with the Secretary of
State of the State of Delaware in accordance with the provisions of the Business
Trust Act.

          3.   The Depositor and the Trustees will enter into an Amended and
Restated Trust Agreement, satisfactory to each such party and substantially in
the form to be included as an exhibit to the 1933 Act Registration Statement
referred to below, to provide for the contemplated operation of the Trust
created hereby and the issuance of the Preferred Securities and Common
Securities referred to therein. Prior to the execution and delivery of such
Amended and Restated Trust Agreement, the Trustees shall not have any duty or
obligation hereunder or with respect of the trust estate, except as otherwise
required by applicable law or as may be necessary to obtain prior to such
execution and delivery any licenses, consents or approvals required by
applicable law or otherwise.

          4.   The Trustees hereby authorize and direct the Depositor (i) to
file with the Securities and Exchange Commission (the "Commission") and execute,
in each case on behalf of the Trust, (a) a Registration Statement on Form S-3
(the "1933 Act Registration Statement"), including any pre-effective or post-
effective amendments to the 1933 Act Registration Statement, relating to the
registration under the Securities Act of 1933, as amended, of the Preferred
Securities of the Trust and certain other securities and (b) a Registration
Statement on Form 8-A (the "1934 Act Registration Statement") (including all 
pre-effective and post-effective amendments thereto) relating to the
registration of the Preferred Securities of the Trust under Section 12(b) of the
Securities Exchange Act of 1934, as amended; (ii) to file with the New York
Stock Exchange (the "Exchange") and execute on behalf of the Trust a listing
application and all other applications, statements, certificates, agreements and
other instruments as shall be

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necessary or desirable to cause the Preferred Securities to be listed on the
Exchange and (iii) to file and execute on behalf of the Trust such applications,
reports, surety bonds, irrevocable consents, appointments of attorney for
service of process and other papers and documents as shall be necessary or
desirable to register the Preferred Securities under the securities or blue sky
laws of such jurisdictions as the Depositor, on behalf of the Trust, may deem
necessary or desirable. In the event that any filing referred to above is
required by the rules and regulations of the Commission, the Exchange or state
securities or blue sky laws, to be executed on behalf of the Trust by one or
more of the Trustees, each of the Trustees, in its or his capacity as Trustee of
the Trust, is hereby authorized and, to the extent so required, directed to join
in any such filing and to execute on behalf of the Trust any and all of the
foregoing, it being understood that Wilmington Trust Company in its capacity as
Trustee of the Trust, shall not be required to join in any such filing or
execute on behalf of the Trust any such document unless required by the rules
and regulations of the Commission, the Exchange or state securities or blue sky
laws. In connection with the filings referred to above, the Depositor and
Barbara S. Graham, as administrative trustee, solely in her capacity as Trustee
of the Trust, hereby constitutes and appoints Barbara S. Graham, Edric R. Mason
and Donald P. Connelly, each of them, as its or her true and lawful 
attorneys-in-fact and agents, with full power of substitution and 
resubstitution, for the Depositor or such Trustee or in the Depositor's or such
Trustee's name, place and stead, in any and all capacities, to sign any and all
amendments (including post-effective amendments) to any such filings (including
the 1933 Act Registration Statement and the 1934 Act Registration Statement) and
to file the same, with all exhibits thereto and other documents in connection
therewith, with the Commission, the Exchange and administrators of

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state securities or blue sky laws, granting unto said attorneys-in-fact and
agents full power and authority to do and perform each and every act and thing
requisite and necessary to be done in connection therewith, as fully to all
intents and purposes as the Depositor or such Trustee might or could do in
person, hereby ratifying and confirming all that said attorneys-in-fact and
agents or any of them, or their respective substitute or substitutes, shall do
or cause to be done by virtue hereof.

          5.   This Trust Agreement may be executed in one or more counterparts.

          6.   The number of Trustees initially shall be two (2) and thereafter
the number of Trustees shall be such number as shall be fixed from time to time
by a written instrument signed by the Depositor which may increase or decrease
the number of Trustees; provided, however, that to the extent required by the
Business Trust Act, one Trustee shall be either a natural person who is a
resident of the State of Delaware, or, if not a natural person, an entity which
has its principal place of business in the State of Delaware and otherwise meets
the requirements of applicable Delaware law. Subject to the foregoing, the
Depositor is entitled to appoint or remove without cause any Trustee at any
time. The Trustees may resign upon thirty days prior written notice to
Depositor.

          7.   This Trust Agreement shall be governed by, and construed in
accordance with, the laws of the State of Delaware (without regard to conflict
of laws principles).

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          IN WITNESS WHEREOF, the parties hereto have caused this Trust
Agreement to be duly executed as of the day and year first above written.


DELMARVA POWER & LIGHT COMPANY,                 _____________________________  
      as Depositor                              Barbara S. Graham, not in her
                                                individual capacity but solely
                                                as Administrative Trustee


By: ______________________                      
Name:
Title:


WILMINGTON TRUST COMPANY,
      not in its individual
      capacity but solely as Trustee

By: _____________________
Name:
Title: