SIST EN 60335-2-76:2005/A12:2011

Household and similar electrical appliances - Safety - Part 2-76: Particular requirements for electric fence energizers

This International Standard deals with the safety of electric fence energizers, the rated voltage of which is not more than 250 V and by means of which fence wires in agricultural, domestic or feral animal control fences and security fences may be electrified or monitored.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-76: Besondere Anforderungen für Elektrozaungeräte

Appareils électrodomestiques et analogues - Sécurité - Partie 2-76: Règles particulières pour les électrificateurs de clôtures

Gospodinjski in podobni električni aparati - Varnost - 2-76. del: Posebne zahteve za generatorje impulzov za električne ograje - Dodatek A12

Ta mednarodni standard obravnava varnost generatorjev impulzov za električne ograje, katerih ocenjena napetost je manjša od 250 V, in načine, kako so lahko žice ograje v kmetijskih, gospodinjskih ali ograjah za divje živali ter varnostnih ograjah elektrificirane ali nadzorovane.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 29-Sep-2009
• Publication Date: 07-Apr-2011
• Withdrawal Date: 15-Aug-2021
• ICS: 65.040.10 - Livestock buildings, installations and equipment
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 28-Jul-2021
• Due Date: 20-Aug-2021
• Completion Date: 16-Aug-2021
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Ref Project: EN 60335-2-76:2005/A12:2010 - Household and similar electrical appliances - Safety - Part 2-76: Particular requirements for electric fence energizers

Relations

• Replaced By: SIST EN IEC 60335-2-76:2022 - Household and similar electrical appliances - Safety - Part 2-76: Particular requirements for electric fence energizers
• Effective Date: 01-Feb-2022
• Replaced By: SIST EN IEC 60335-2-76:2018 - Household and similar electrical appliances - Safety - Part 2-76: Particular requirements for electric fence energizers
• Effective Date: 01-Dec-2018
• Amends: SIST EN 60335-2-76:2005 - Household and similar electrical appliances - Safety -- Part 2-76: Particular requirements for electric fence energizers
• Effective Date: 01-May-2011
• Revises: oSIST prEN 60335-2-76 {fragment 2}:2017 - Household and similar electrical appliances - Safety - Part 2-76: Particular requirements for electric fence energizers
• Effective Date: 07-Jun-2022

Overview

EN 60335-2-76:2005/A12:2010 is a CENELEC amendment to the European safety standard EN 60335-2-76 covering household and similar electrical appliances - particular requirements for electric fence energizers. Published as Amendment A12 (2010) and adopted nationally by 2011, it adds specific requirements for time delayed electric fence energizers, marking, tests and alarm/output-control functions to ensure safe operation and user information.

Key topics and technical requirements

• Scope: Particular safety requirements for electric fence energizers as part of EN 60335 series for household and similar appliances (amendment A12 modifies the 2005 edition).
• Time-delayed energizer definitions:
  • Time delayed energizer: limits maximum output impulses while a very low load impedance is detected, then permits output energy to rise after a defined delay.
  • Delay time: period before maximum output energy may increase.
  • Adaptation time: time to reach steady state after delay.
• Performance limits for time-delayed devices:
  • Delay time: 15 s to 60 s
  • Adaptation time: < 1 min
  • Impulse repetition rate: ≤ 1 Hz
  • Impulse duration (measured in non-inductive R1): ≤ 10 ms
  • Energy/impulse limits:
    • When load impedance > 500 Ω (or exceeded during delay): ≤ 5 J
    • Steady-state maximum energy vs. load X (examples from Table ZAA.1):
      • 50–100 Ω: higher values capped by curve; 200 Ω → 12.5 J, 300 Ω → 8.3 J, 400 Ω → 6.3 J, 500 Ω → 5 J
    • Output must not exceed linear interpolation between table points.
• Alarm and control for units exceeding 5 J:
  • Alarm triggers if impedance falls from >1 000 Ω to <400 Ω and stays below 400 Ω for >6 consecutive impulses.
  • On alarm: impulse rate reduced to < 0.34 Hz; alarm stops when impedance >600 Ω or after 10–60 min.
  • If alarm is disabled or external alarm disconnected, device must limit energy to ≤ 5 J and indicate this visibly.
  • Alarm must provide visual and audible indication: visual visible at 10 m; audible ≥ 55 dB(A) at 1 m (measured per EN 61672 series).
• Marking and instructions:
  • Must be marked “time delayed electric fence energizer” or show the specified symbol (circle diameter ≥ 15 mm).
  • Instructions must state the delay time in seconds.
• Compliance tests: specified sequences of standard loads and measurements to verify energy/impulse, timing and alarm behavior.

Applications and who uses it

• Manufacturers of electric fence energizers - to design, mark and document compliant products.
• Test laboratories and certification bodies - to perform the specified energy, timing and alarm tests for type approval or conformity assessment.
• Safety engineers and product compliance teams - to interpret limits and implement protective functions (time-delay, alarms, output control).
• Regulators and purchasing authorities - to reference requirements for safe use around livestock, buildings and similar installations.

Related standards

• EN 60335-2-76 (base standard, 2005)
• EN 60335 series (general safety requirements for household appliances)
• EN 61672 series / IEC 61672 (electroacoustics - sound level meters) - referenced for alarm sound measurement

Keywords: EN 60335-2-76 A12, electric fence energizer safety, time delayed energizer, impulse energy limits, CENELEC standard, alarm requirements, compliance testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2011
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]DJHQHUDWRUMHLPSXO]RY]DHOHNWULþQHRJUDMH'RGDWHN$
Household and similar electrical appliances - Safety - Part 2-76: Particular requirements
for electric fence energizers
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-76:
Besondere Anforderungen für Elektrozaungeräte
Appareils électrodomestiques et analogues - Sécurité - Partie 2-76: Règles particulières
pour les électrificateurs de clôtures
Ta slovenski standard je istoveten z: EN 60335-2-76:2005/A12:2010
ICS:
65.040.10 Poslopja, naprave in oprema Livestock buildings,
za živino installations and equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60335-2-76/A12
NORME EUROPÉENNE
September 2010
EUROPÄISCHE NORM
ICS 65.040.99
English version
Household and similar electrical appliances -
Safety -
Part 2-76: Particular requirements for electric fence energizers

Appareils électrodomestiques  Sicherheit elektrischer Geräte für den
et analogues - Sécurité - Hausgebrauch und ähnliche Zwecke -
Partie 2-76: Règles particulières pour Teil 2-76: Besondere Anforderungen
les électrificateurs de clôtures für Elektrozaungeräte

This amendment A12 modifies the European Standard EN 60335-2-76:2005; it was approved by CENELEC on
2010-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60335-2-76:2005/A12:2010 E

Foreword
A proposal to amend EN 60335-2-76:2005 was discussed during the London meeting of CENELEC
TC 61 in December 2008, when it was decided to submit a draft for an amendment to the CENELEC
Enquiry.
The results were discussed at the Sofia meeting in November 2009, when it was decided to submit a
revised draft to the formal vote.
The text was circulated in March 2010 and was approved by CENELEC as amendment A12 to
EN 60335-2-76:2005 on 2010-09-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the amendment has to be implemented

at national level by publication of an identical

national standard or by endorsement
(dop) 2011-09-01
– latest date by which the national standards conflicting

with the amendment have to be withdrawn
(dow) 2013-09-01
__________
– 3 – EN 60335-2-76:2005/A12:2010
19 Abnormal operation
19.1 Replace the modification by:
19.1 Addition:
Energizers are also subjected to the tests of 19.101, 19.102, 19.103, 19.104 and 19.105.
Add:
Annex ZAA
(normative)
Time delayed electric fence energizers
The following modifications to this standard are applicable for time delayed electric fence
energizers.
3 Definitions
3.ZAA.1
time delayed electric fence energizer
electric fence energizer that when a very low load impedance is detected at the output terminals, has
its maximum output impulses limited for the duration of the delay time, but permits the output
impulses to rise even above the normal maximum allowed value of 5 J after the delay time
3.ZAA.2
delay time
time the energizer waits before its maximum output energy is allowed to increase in response to a
changed load
3.ZAA.3
adaptation time
time by which an energizer output has reached steady state in response to a changed load after the
delay time has elapsed
7 Marking and instructions
7.1 Addition:
The energizer shall be marked with the substance of the words "time delayed electric fence
energizer" or with the symbol (see 7.6).
Compliance is checked by inspection.
7.6 Addition:
Time delayed electric fence energizer

7.12 Addition:
If the “time delayed electric fence energizer” symbol or the substance of the words “time delayed
electric fence energizer” is marked on the appliance, its meaning shall be explained.
The instructions for energizers marked “time delayed electric fence energizer” or with the symbol
...