IEC 62040-1-2-2002 PDF

Full title and description

IEC 62040-1-2:2002 — "Uninterruptible power systems (UPS) — Part 1‑2: General and safety requirements for UPS used in restricted access locations". This part of IEC 62040 specifies safety, construction and testing requirements for electronic UPS equipment with energy storage in the d.c. link intended for installation in restricted (non-operator) access locations; it is designed to be used together with the referenced safety document IEC 60950‑1.

Abstract

This standard sets out fundamental design and safety requirements (protection against electric shock, insulation, backfeed protection, battery compartment considerations, wiring and connections, marking and user information) and specifies test conditions and abnormal / simulated fault tests appropriate to UPS intended for restricted access locations. It was published as a bilingual IEC edition with corrigenda and later consolidated into a later edition of IEC 62040‑1.

General information

• Status: Replaced / Withdrawn — replaced by IEC 62040‑1:2008 (standard consolidation). Withdrawal effective 11 June 2008.
• Publication date: 28 August 2002.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.200 (rectifiers, converters, stabilized power supplies).
• Edition / version: Edition 1.0 (2002). Corrigenda published; bilingual edition available.
• Number of pages: 93 pages (official IEC publication).

Scope

Applies to electronic UPS with an electrical energy storage device in the d.c. link intended for use in restricted-access locations. The standard complements and is to be used together with IEC 60950‑1 (reference document) and covers design, construction, marking, information to the user, and specific tests (normal and abnormal / simulated fault conditions) needed to verify safety and performance under the stated conditions. It does not cover special installation environments or rotating-machine UPS and takes precedence where applicable over earlier national documents that it replaced.

Key topics and requirements

• Protection against electric shock and energy hazards (clearances, creepage, insulation, SELV where appropriate).
• Backfeed protection and requirements to prevent unintended energization of the supply network.
• Requirements for emergency switching, overcurrent and earth‑fault protection.
• Battery location, ventilation of battery compartments and hydrogen concentration considerations.
• Marking, user information and instructions necessary to ensure safe use and testing conditions.
• Test conditions and procedures (operating parameters for tests, reference loads, simulated faults, earth leakage and heating tests).

Typical use and users

Used by UPS manufacturers and designers to demonstrate compliance with IEC safety requirements for restricted‑access installations, by test laboratories and certification bodies performing safety assessments, and by procurement/specification engineers and installers who require assurance that UPS equipment meets internationally harmonized safety and testing criteria. Regulatory or certification activities that reference IEC safety requirements also benefit from this document or its consolidated successors.

Related standards

Key related standards and reference documents include: IEC 60950‑1 (information technology equipment — safety — reference document for several clauses), IEC 62040‑2 (EMC requirements for UPS), IEC 62040‑3 (method of specifying performance and test requirements), and applicable IEC EMC and low‑voltage installation standards (for example IEC 61000‑2‑2). The IEC 62040‑1:2008 edition consolidated the Part 1‑1 and Part 1‑2 documents into a single Part 1.

Keywords

UPS, uninterruptible power system, safety, restricted access, IEC 62040, backfeed protection, battery compartment ventilation, insulation, electrical safety, test procedures, IEC 60950‑1.

FAQ

Q: What is this standard?

A: IEC 62040‑1‑2:2002 is an IEC safety standard titled "Uninterruptible power systems (UPS) — Part 1‑2: General and safety requirements for UPS used in restricted access locations", providing design and test requirements for electronic UPS with d.c. energy storage.

Q: What does it cover?

A: It covers fundamental safety requirements (electric shock protection, insulation, clearances), battery and enclosure considerations, marking and user information, and specifies the normal and abnormal test procedures and operating conditions to verify safety for UPS used in restricted access locations.

Q: Who typically uses it?

A: UPS manufacturers, safety and compliance engineers, test laboratories and certification bodies, and procurement/specification professionals for data centers, telecom rooms and other restricted‑access installations.

Q: Is it current or superseded?

A: Superseded — IEC 62040‑1‑2:2002 was withdrawn and replaced by IEC 62040‑1:2008 (which consolidated Part 1‑1 and Part 1‑2). Later editions of IEC 62040‑1 (for example the 2017 edition and subsequent amendments) provide the current consolidated safety requirements. Withdrawal of IEC 62040‑1‑2:2002 was effective 11 June 2008.

Q: Is it part of a series?

A: Yes — it is part of the IEC 62040 series for UPS. The series includes separate parts covering safety (Part 1), EMC (Part 2), and performance/specification/test methods (Part 3), among others. Part 1‑2 was the restricted‑access safety subpart that was later merged into the consolidated Part 1.

Q: What are the key keywords?

A: UPS, safety, restricted access, battery ventilation, backfeed protection, insulation, IEC 60950‑1, test procedures, electrical protection.